415 + Interview Questions in Materials For Construction in Basic Civil Engineering Page 3 InterviewSolution

101.	Coarse aggregates are classified into how many groups?(a) 3(b) 4(c) 6(d) 2This question was posed to me by my school principal while I was bunking the class.Origin of the question is Coarse Aggregates topic in portion Materials for Construction of Basic Civil Engineering
Answer» The CORRECT ANSWER is (d) 2 To elaborate: The two main GROUPS of COARSE aggregates are single-sized aggregates and GRADED aggregates.

Discussion

102.	What is the fineness modulus value of a fine sand?(a)
Answer» Correct CHOICE is (b) 2.2-2.6 The explanation is: Based on the FINENESS of sand, there are very FINE sand, fine sand, medium sand, coarse sand and very coarse sand.Fine sand has fineness MODULUS between 2.2-2.6.

Discussion

103.	Driers in varnish are used as:(a) Reducers(b) Retarders(c) Accelerators(d) OxidisersI have been asked this question in an international level competition.My question is from Varnish in portion Materials for Construction of Basic Civil Engineering
Answer» Correct choice is (c) ACCELERATORS The explanation is: Drier is the INGREDIENT in VARNISH which accelerators the process of drying of APPLIED varnish.

Discussion

104.	Emulsion Paints contain:(a) Nitro cotton(b) Zinc white(c) White lead(d) Polyvinyl acetateI got this question during a job interview.I want to ask this question from Types and Uses of Paints in chapter Materials for Construction of Basic Civil Engineering
Answer» CORRECT CHOICE is (d) Polyvinyl acetate Best explanation: Nitro cotton is an ELEMENT CONTAINED in cellulose paints, zinc white and white lead are components of enamel paints.

Discussion

105.	Which of the below is a characteristic of an ideal paint?(a) Health of the worker is unaffected(b) Costly(c) Pleasant smell(d) Dries rapidlyI have been asked this question during an interview.My question is taken from Characteristics and Ingredients of Paint in portion Materials for Construction of Basic Civil Engineering
Answer» Right answer is (a) Health of the WORKER is unaffected Easiest EXPLANATION: The person applying the paint should be SAFEGUARDED from any toxic or harmful ingredients.The paint should economic, the smell is typically bit pungent.Paint should dry at a REASONABLE time, not slowly or rapidly.

Discussion

106.	What is a vehicle in paint used for?(a) To obscure surface(b) To adhere to surface(c) To provide shine to surface(d) To reduce crack on surfaceI got this question in my homework.I'm obligated to ask this question of Characteristics and Ingredients of Paint in division Materials for Construction of Basic Civil Engineering
Answer» The CORRECT choice is (b) To ADHERE to SURFACE Best explanation: PAINT consists of TWO ingredients-a base and a vehicle.Base helps to obscure the surface.A vehicle allows even spreading, binding and adhering to surface.

Discussion

107.	Recycled Aluminium is called:(a) Primary Aluminium(b) Green Aluminium(c) Secondary Aluminium(d) Subsequent AluminiumThis question was addressed to me in exam.I'd like to ask this question from Properties and Uses of Aluminium in chapter Materials for Construction of Basic Civil Engineering
Answer» RIGHT option is (c) Secondary Aluminium To EXPLAIN: RECYCLED Aluminium is called secondary aluminium and same PROPERTIES of primary aluminium.

Discussion

108.	What is the melting point of Aluminium?(a) 250^oC(b) 658^oC(c) 700^oC(d) 470^oCI have been asked this question during an interview.This interesting question is from Properties and Uses of Aluminium topic in section Materials for Construction of Basic Civil Engineering
Answer» The correct OPTION is (b) 658^oC For explanation I WOULD say: The boiling point of aluminium is 2470^oC.It is STRONG and can be WIDELY used EVERYWHERE.

Discussion

109.	Aluminium finds its application in:(a) Golf clubs(b) Dehydrating agents(c) Waste management(d) Cricket fieldI got this question in homework.This key question is from Properties and Uses of Aluminium in division Materials for Construction of Basic Civil Engineering
Answer» Correct ANSWER is (a) Golf clubs Best EXPLANATION: Compared to steel, aluminium is lightweight.Aluminium golf heads, shafts allow golfers to swing faster and INCREASE the BALL’s DISTANCE with each shot.

Discussion

110.	Corrugated sheets are also referred to as:(a) CS Sheets(b) CI Sheets(c) GC Sheets(d) GI SheetsI have been asked this question in an international level competition.I'm obligated to ask this question of Market Forms and Uses of Steel topic in portion Materials for Construction of Basic Civil Engineering
Answer» RIGHT option is (d) GI Sheets The EXPLANATION is: The corrugated sheets are galvanized to add a PROTECTIVE coating to the steel sheet.Hence, GI-Galvanized IRON sheet is another name for corrugated sheets.

Discussion

111.	For how long is timber boiled in water in the seasoning method of boiling?(a) 3-4 hours(b) 1-2 hours(c) 5-6 hours(d) 10-12 hoursThis question was addressed to me during a job interview.My question is from Seasoning of Timber topic in division Materials for Construction of Basic Civil Engineering
Answer» Correct choice is (a) 3-4 hours To explain I would SAY: TIMBER is immersed in water and ALLOWED to boil for 3-4 hours.Then it is taken into shed and dried very slowly.

Discussion

112.	Ascue is a:(a) Defect by insects(b) Preservative(c) Natural defect(d) Type of marine borerThis question was addressed to me by my college professor while I was bunking the class.Origin of the question is Defects and Preservation of Timber topic in section Materials for Construction of Basic Civil Engineering
Answer» The correct option is (b) PRESERVATIVE Easy explanation: Ascue – copper chrome arsenic composition, is a TYPE 3 preservative developed by Forest Research Institute.It is available in POWDERED form.Ascue SOLUTION is prepared by mixing 6 parts powder to 100 parts water, by WEIGHT.

Discussion

113.	A good preservative should:(a) Be poisonous(b) Be unaffected by heat and moisture(c) Have pleasant odour(d) Have white colourI have been asked this question in semester exam.The origin of the question is Defects and Preservation of Timber in chapter Materials for Construction of Basic Civil Engineering
Answer» RIGHT OPTION is (b) Be unaffected by heat and moisture For explanation: A GOOD PRESERVATIVE should be poisonous to fungi, insects, etc.It should odourless and COLOURLESS.

Discussion

114.	How can the quality of timber be checked via sound?(a) Timber struck by hammer(b) Timber tapped by hand(c) Timber knocked by chisel(d) Two timber pieces struck togetherThe question was asked in unit test.I want to ask this question from Qualities of Timber in division Materials for Construction of Basic Civil Engineering
Answer» Correct answer is (d) Two timber pieces struck together The best EXPLANATION: Just as in the case of bricks, two timber pieces are TAKEN and struck against each other.A GOOD quality timber should MAKE a CLEAR ringing sound.

Discussion

115.	Which of the following is not a method of drying?(a) Impulse drying(b) Infrared drying(c) Kiln drying(d) Tunnel driersThis question was addressed to me at a job interview.My doubt is from Manufacture of Tiles in portion Materials for Construction of Basic Civil Engineering
Answer» Correct ANSWER is (c) Kiln drying The EXPLANATION: Impulse drying uses pulses of hot air flowing in the transverse direction.Tunnel driers use gas, OIL, infrared lamps or microwave energy.Infrared drying is USED for thin TILES.

Discussion

116.	What is the meaning of slip?(a) Dry mixture(b) Impurities in mixture(c) Water filled mixture(d) Different sized mixtureThis question was posed to me during an interview.My question is taken from Manufacture of Tiles topic in portion Materials for Construction of Basic Civil Engineering
Answer» Correct choice is (c) Water filled mixture Explanation: For fine grinding, water is added to the BALL mill, where CLAY PARTICLES are obtained as wet mixture.It is called wet MILLING.Then it is FOLLOWED by dry milling.

Discussion

117.	How many operations are involved in the manufacturing of tiles?(a) 5(b) 6(c) 10(d) 8I have been asked this question in unit test.This is a very interesting question from Manufacture of Tiles topic in section Materials for Construction of Basic Civil Engineering
Answer» Correct CHOICE is (B) 6 Easiest explanation: The MAIN 6 operations are a selection of suitable CLAY, PREPARATION of clay, moulding, drying and shaping, burning and cooling.

Discussion

118.	Which IS code gives classifications of ceramic tile?(a) IS 13712(b) IS 13630(c) IS 2248(d) IS 654This question was posed to me in homework.The question is from Types of Tiles in chapter Materials for Construction of Basic Civil Engineering
Answer» RIGHT OPTION is (a) IS 13712 The EXPLANATION: IS 13712 gives details REGARDING definitions, classifications, characteristics and marking of ceramic tile.

Discussion

119.	Which of the following bricks is not preferred?(a) Sharp-edged(b) Clamp burned(c) Sound-proofed(d) Kiln burnedThe question was posed to me during an online interview.This question is from Qualities of Good Brick in chapter Materials for Construction of Basic Civil Engineering
Answer» Correct answer is (b) CLAMP burned To ELABORATE: In clamp burning, bricks are not BURNT uniformly.This results in a non-uniform surface, colour of bricks, which cannot be used for high end works.

Discussion

120.	Carbonaceous material in small amounts is good for the brick earth.(a) True(b) FalseI had been asked this question during an online exam.The query is from Composition of Good Brick Earth topic in portion Materials for Construction of Basic Civil Engineering
Answer» CORRECT choice is (B) False For EXPLANATION: It is a harmful ingredient that causes different COLOURS in interior and exterior of brick.Their PRESENCE defaces the plastering by discolouration.

Discussion

121.	Plastic clay method of machine moulding results in pressed bricks.(a) True(b) FalseThis question was posed to me during an interview.This intriguing question originated from Manufacture of Brick topic in section Materials for Construction of Basic Civil Engineering
Answer» The correct answer is (B) False Explanation: In plastic clay method, clay in the plastic state is employed.It comes out of a rectangular opening in the form of a clay bar.As it comes out, it is cut into to strips by wire, and hence called wire BRICKS.Pressed bricks are OBTAINED from DRY clay method.

Discussion

122.	Excess of oxides of iron makes the brick:(a) Red in colour(b) Black in colour(c) Dark blue in colour(d) Yellow in colourThis question was posed to me in an internship interview.I want to ask this question from Composition of Good Brick Earth topic in portion Materials for Construction of Basic Civil Engineering
Answer» The correct option is (c) Dark blue in colour The explanation is: Iron oxide imparts the RED colour to the BRICK.Presence of MAGNESIA MAKES brick yellowish and manganese makes it black.Excess of oxides of iron makes the brick dark blue on burning.

Discussion

123.	An excess of magnesium oxide after 5% is harmful to cement.(a) True(b) FalseI had been asked this question in my homework.This key question is from Ingredients of Cement in portion Materials for Construction of Basic Civil Engineering
Answer» The CORRECT option is (a) True Explanation: Excess of magnesium causes PROBLEMS in structures built with this cement.It causes cracks in both MORTAR and concrete after they HARDEN.

Discussion

124.	Sulphur in cement is present in what amount?(a) 0.5 – 6 g(b) 1 – 2.5%(c) 0.5 – 6%(d) 1 – 2.5gI had been asked this question in a national level competition.Query is from Ingredients of Cement in division Materials for Construction of Basic Civil Engineering
Answer» Correct choice is (b) 1 – 2.5% To explain: The presence of ingredients is EXPRESSED in percentage.Iron OXIDE is PRESENT in 0.5-6% and sulphur 1-2.5%.

Discussion

125.	Excess of Alkali in cement results in:(a) Dry cement paste(b) Efflorescence(c) Less plasticity(d) Unsound cementI had been asked this question in an interview.Origin of the question is Ingredients of Cement topic in section Materials for Construction of Basic Civil Engineering
Answer» Right option is (b) EFFLORESCENCE The explanation: Efflorescence is the formation of powdery substance on the surface of masonry or CONCRETE work.Alkalis usually get carried away by flue GASES during heating.In EXCESS quantity, they result in alkali-aggregate reaction.

Discussion

126.	Wet cement can cause severe skin burns if not washed off with water immediately.(a) True(b) FalseThis question was addressed to me during an online exam.My question is taken from Properties of Cement in section Materials for Construction of Basic Civil Engineering
Answer» Right answer is (a) True To EXPLAIN: Cement is highly ALKALINE and setting process is exothermic.Wet cement is strongly caustic and causes skin burns.Similarly, dry cement causes eye or respiratory irritation, when it COMES in CONTACT with mucous membranes.

Discussion

127.	Which of the following types of Lime does not exist?(a) Dolomitic Lime(b) Roman Lime(c) Semi-Hydraulic Lime(d) Selentic LimeThis question was addressed to me in semester exam.This is a very interesting question from Source and Classification of Lime topic in division Materials for Construction of Basic Civil Engineering
Answer» The correct choice is (b) ROMAN Lime Easy explanation: Semi-Hydraulic Lime contains lesser clay CONTENT than Hydraulic Lime.Dolomitic Lime comprises of high magnesium CARBONATE (35-46%) content.Selentic Lime is cement of grey chalk, with added gypsum.Roman Lime does not exist, instead there is Roman Concrete which is OBTAINED by mixing lime and volcanic ash.

Discussion

128.	The density of wet sand is:(a) 1922 kg/m^3(b) 1682 kg/m^3(c) 1281 kg/m^3(d) 1522 kg/m^3The question was posed to me in a national level competition.This intriguing question comes from Properties of Sand topic in division Materials for Construction of Basic Civil Engineering
Answer» The correct OPTION is (a) 1922 kg/m^3 To EXPLAIN: 1682 kg/m^3 is density of rammed SAND, 1281 kg/m^3 is density of DRY sand and 1522 kg/m^3 is of SILICA sand.

Discussion

129.	Bulking is the phenomenon applicable to both fine and coarse aggregates.(a) True(b) FalseThe question was posed to me by my school principal while I was bunking the class.This interesting question is from Bulking of Sand topic in section Materials for Construction of Basic Civil Engineering
Answer» Correct answer is (b) False The best I can EXPLAIN: Bulking is possible only in fine aggregates.In coarse aggregate, SIZE of PARTICLE is large, void SPACE is less and so water absorption is not possible up to the extent of fine aggregates.

Discussion

130.	Recycling steel reduces:(a) Energy use by 75%(b) Energy use by 50%(c) Energy use by 35%(d) Energy use by 20%This question was posed to me in a job interview.Origin of the question is Cost Effective Materials in section Materials for Construction of Basic Civil Engineering
Answer» CORRECT option is (a) Energy USE by 75% Explanation: Six SCRAPPED cars can yield a good strong STEEL frame.It requires less energy (75%) to produce recycled steel than normal steel. It also saves space in landfills.

Discussion

131.	Which of the following PVC product is not there in the market?(a) PVC brick decor(b) PVC door(c) PVC cement(d) PVC plasterThis question was posed to me during an interview.My question is based upon PVC topic in portion Materials for Construction of Basic Civil Engineering
Answer» Right choice is (d) PVC plaster The EXPLANATION: PVC BRICK wallpapers are AVAILABLE, with an adhesive at the back.PVC cement is USED to attach 2 PVC pipes.PVC doors are also common. PVC plastering ACCESSORIES are available, not PVC plaster.

Discussion

132.	Hardness of rubber is measured on which scale?(a) Rockwell scale(b) Shore scale(c) Mohr’s scale(d) Vicker’s scaleThis question was posed to me in exam.My doubt is from Rubber topic in chapter Materials for Construction of Basic Civil Engineering
Answer» CORRECT choice is (b) SHORE scale The best I can explain: HARDNESS is MEASURED in terms of durometer on a shore scale.Shore A is used for soft to medium-hard rubber.Solid rubber has a hardness of 40 DURO.

Discussion

133.	How many different categories of glass are there?(a) 5(b) 4(c) 2(d) 3This question was posed to me by my college director while I was bunking the class.This is a very interesting question from Glass topic in chapter Materials for Construction of Basic Civil Engineering
Answer» RIGHT OPTION is (d) 3 To elaborate: For the purpose of CLASSIFICATION, glass can be GROUPED into 3 categories: Soda-lime glass, Potash-lime glass and Potash-lead glass.

Discussion

134.	What is added to rubber to make it a thermosetting polymer?(a) Potassium(b) Sulphur(c) Sodium(d) PhosphorousThis question was addressed to me during an internship interview.This interesting question is from Rubber topic in division Materials for Construction of Basic Civil Engineering
Answer» The correct option is (b) SULPHUR Best explanation: The process of vulcanization makes RUBBER GET converted into a heavily cross-linked, insoluble and infusible compound.It is done by adding sulphur and litharge (PBO).

Discussion

135.	A narrow gradation is also called:(a) Gap gradation(b) Uniform gradation(c) Rich gradation(d) Open gradationThe question was posed to me in unit test.My doubt stems from Sieve Analysis topic in section Materials for Construction of Basic Civil Engineering
Answer» Correct choice is (b) UNIFORM gradation The explanation is: A graph is plotted after performing sieve analysis.It shows different curves.A NARROW gradation is also CALLED uniform gradation. It shows that the AGGREGATE is of approximately the same size.

Discussion

136.	The sieve sets for coarse aggregate ranges from:(a) 40-4.75mm(b) 20-4.75mm(c) 80-4.75mm(d) 100-4.75mmI have been asked this question in an international level competition.This interesting question is from Sieve Analysis topic in section Materials for Construction of Basic Civil Engineering
Answer» Right answer is (c) 80-4.75mm The explanation: ACCORDING to IS 565, the sieve SETS are 80MM, 40mm, 20MM, 10mm, 4.75mm for coarse aggregates.

Discussion

137.	Lithophone is a base widely used for exterior works.(a) True(b) FalseThis question was addressed to me in an international level competition.I'd like to ask this question from Characteristics and Ingredients of Paint in portion Materials for Construction of Basic Civil Engineering
Answer» RIGHT ANSWER is (b) False Explanation: Lithophone changes COLOUR when exposed to DAY light.Hence, it is used for interior works of inferior quality.

Discussion

138.	Aluminium appears greyish in colour in pure form.(a) True(b) FalseThe question was posed to me during an interview.My question is from Properties and Uses of Aluminium topic in division Materials for Construction of Basic Civil Engineering
Answer» Right choice is (b) False The BEST explanation: Pure form of Aluminium is white in COLOUR.Its colour can vary from GREY to yellow or light GREEN depending on the presence of impurities.Yellow colour is imparted by IRON trichloride (impurity).

Discussion

139.	Aluminium has a higher maintenance cost.(a) True(b) FalseI have been asked this question in examination.I want to ask this question from Properties and Uses of Aluminium topic in division Materials for Construction of Basic Civil Engineering
Answer» Right CHOICE is (b) False To explain I would SAY: Aluminium has excellent corrosion resistance and can WITHSTAND WEATHERING, HOT and humid conditions also.Hence, maintenance cost required is less.

Discussion

140.	How should be the colour of good quality timber?(a) Light(b) Gradient(c) Dark(d) BrownI had been asked this question in homework.This intriguing question comes from Qualities of Timber topic in portion Materials for Construction of Basic Civil Engineering
Answer» The correct CHOICE is (C) Dark Easiest explanation: HEART wood consists of dead CELLS which are free from sap, hard, dark in colour.Hence, dark coloured wood is preferred.Light colour indicates low STRENGTH.

Discussion

141.	The defect indicated by curvature formed in a transverse direction is:(a) Bow(b) Spring(c) Twist(d) CupThis question was addressed to me in unit test.Question is from Defects and Preservation of Timber in division Materials for Construction of Basic Civil Engineering
Answer» CORRECT choice is (d) Cup To explain: BOW is curvature in direction of length.Spring is curvature in its own plane.Twist occurs when timber plank has SPIRALLY DISTORTED ALONG its length.

Discussion

142.	Which of the following is an example of soft wood?(a) Sal(b) Oak(c) Deodar(d) MahoganyThis question was posed to me in an internship interview.This interesting question is from Classification of Timber topic in portion Materials for Construction of Basic Civil Engineering
Answer» CORRECT ANSWER is (c) Deodar The explanation: Sal, OAK and Mahogany are all EXAMPLES of hard wood.

Discussion

143.	Which type of tile is suitable for air-conditioned rooms, gymnasiums and skating rinks?(a) Wood tiles(b) Cork tiles(c) Ceramic tiles(d) Concrete tilesThis question was posed to me during an online interview.This intriguing question originated from Types of Tiles topic in division Materials for Construction of Basic Civil Engineering
Answer» The CORRECT ANSWER is (a) Wood tiles The best explanation: Wooden tiles are widely USED in such places.They are given a PROTECTIVE coating of varnish.They provide thermal comfort and are durable.

Discussion

144.	Which tile is the most versatile?(a) Porcelain(b) Shale(c) Slate(d) GraniteThe question was asked in an online interview.This interesting question is from Types of Tiles in portion Materials for Construction of Basic Civil Engineering
Answer» Correct option is (c) Slate Easiest explanation: Slate can be USED as roofing shingles, it can be used INDOORS as WELL as outdoors, because of its NATURAL looks and range of colours.

Discussion

145.	What should be observed ideally when two bricks are struck together?(a) Dull sound(b) Sides shatter(c) Clear ringing sound(d) Brick breaksI got this question in semester exam.The doubt is from Tests on Bricks topic in portion Materials for Construction of Basic Civil Engineering
Answer» The correct choice is (C) Clear ringing sound Best EXPLANATION: It is a TEST for soundness of brick.A sound brick should not break.It should produce a clear ringing sound.A DULL sound INDICATES an unsound brick.

Discussion

146.	Unburnt bricks are also called:(a) Dry bricks(b) Clayey bricks(c) Kucha bricks(d) Clamp bricksI have been asked this question at a job interview.My query is from Types of Bricks in section Materials for Construction of Basic Civil Engineering
Answer» Correct choice is (c) KUCHA bricks For explanation: UNBURNT bricks are the one dried in the sun, after moulding.They are kept for a long TIME until they dry.Sometimes due to a large number of bricks, LIMITED time, improper workman skills, the bricks are not completely dried and hence are CALLED Kucha bricks.

Discussion

147.	How many methods of moulding brick earth are there?(a) 3(b) 5(c) 2(d) 4This question was posed to me during an interview.This is a very interesting question from Manufacture of Brick topic in chapter Materials for Construction of Basic Civil Engineering
Answer» Right OPTION is (c) 2 Explanation: There are two METHODS of carrying out moulding of brick earth.These are HAND moulding and MACHINE moulding.

Discussion

148.	What happens to raw bricks if an excess of alumina is present?(a) Becomes hard(b) Becomes brittle(c) Decay(d) ShrinkageThis question was addressed to me in homework.My doubt stems from Composition of Good Brick Earth topic in portion Materials for Construction of Basic Civil Engineering
Answer» The correct answer is (d) SHRINKAGE Easy explanation: Raw BRICKS DEVELOP shrinkage, CRACKS, warping in presence of excess alumina.Other three changes happen on burnt bricks or final brick product due to excess of other constituents.

Discussion

149.	In what form should lime be present in the brick earth?(a) Paste(b) Lump(c) Clinker(d) PowderThe question was asked at a job interview.My question is taken from Composition of Good Brick Earth topic in section Materials for Construction of Basic Civil Engineering
Answer» Right option is (d) Powder To explain: Lime should be present in the brick earth in the FORM of very finely powdered STATE so as to prevent the FLAKING of BRICKS.

Discussion

150.	Which one of the below is not a feature of cement Kiln?(a) Employs alternate fuels(b) Natural alkaline environment(c) High temperature(d) PortableI had been asked this question during an interview.I'd like to ask this question from Manufacture of Cement in division Materials for Construction of Basic Civil Engineering
Answer» RIGHT option is (d) Portable Easiest explanation: Cement kiln is highly efficient as it incorporates preheater, precalciner, USES alternative fuels-bio fuels, recycled waste, etc.It requires SPACE and is PERMANENTLY installed in one place.Rotary kiln is the one that is portable.

Discussion

Explore topic-wise InterviewSolutions in .

Coarse aggregates are classified into how many groups?(a) 3(b) 4(c) 6(d) 2This question was posed to me by my school principal while I was bunking the class.Origin of the question is Coarse Aggregates topic in portion Materials for Construction of Basic Civil Engineering

What is the fineness modulus value of a fine sand?(a)

Driers in varnish are used as:(a) Reducers(b) Retarders(c) Accelerators(d) OxidisersI have been asked this question in an international level competition.My question is from Varnish in portion Materials for Construction of Basic Civil Engineering

Emulsion Paints contain:(a) Nitro cotton(b) Zinc white(c) White lead(d) Polyvinyl acetateI got this question during a job interview.I want to ask this question from Types and Uses of Paints in chapter Materials for Construction of Basic Civil Engineering

Recycled Aluminium is called:(a) Primary Aluminium(b) Green Aluminium(c) Secondary Aluminium(d) Subsequent AluminiumThis question was addressed to me in exam.I'd like to ask this question from Properties and Uses of Aluminium in chapter Materials for Construction of Basic Civil Engineering

What is the melting point of Aluminium?(a) 250^oC(b) 658^oC(c) 700^oC(d) 470^oCI have been asked this question during an interview.This interesting question is from Properties and Uses of Aluminium topic in section Materials for Construction of Basic Civil Engineering

Aluminium finds its application in:(a) Golf clubs(b) Dehydrating agents(c) Waste management(d) Cricket fieldI got this question in homework.This key question is from Properties and Uses of Aluminium in division Materials for Construction of Basic Civil Engineering

For how long is timber boiled in water in the seasoning method of boiling?(a) 3-4 hours(b) 1-2 hours(c) 5-6 hours(d) 10-12 hoursThis question was addressed to me during a job interview.My question is from Seasoning of Timber topic in division Materials for Construction of Basic Civil Engineering

Which of the following is not a method of drying?(a) Impulse drying(b) Infrared drying(c) Kiln drying(d) Tunnel driersThis question was addressed to me at a job interview.My doubt is from Manufacture of Tiles in portion Materials for Construction of Basic Civil Engineering

What is the meaning of slip?(a) Dry mixture(b) Impurities in mixture(c) Water filled mixture(d) Different sized mixtureThis question was posed to me during an interview.My question is taken from Manufacture of Tiles topic in portion Materials for Construction of Basic Civil Engineering

How many operations are involved in the manufacturing of tiles?(a) 5(b) 6(c) 10(d) 8I have been asked this question in unit test.This is a very interesting question from Manufacture of Tiles topic in section Materials for Construction of Basic Civil Engineering

Which IS code gives classifications of ceramic tile?(a) IS 13712(b) IS 13630(c) IS 2248(d) IS 654This question was posed to me in homework.The question is from Types of Tiles in chapter Materials for Construction of Basic Civil Engineering

Which of the following bricks is not preferred?(a) Sharp-edged(b) Clamp burned(c) Sound-proofed(d) Kiln burnedThe question was posed to me during an online interview.This question is from Qualities of Good Brick in chapter Materials for Construction of Basic Civil Engineering

Carbonaceous material in small amounts is good for the brick earth.(a) True(b) FalseI had been asked this question during an online exam.The query is from Composition of Good Brick Earth topic in portion Materials for Construction of Basic Civil Engineering

Plastic clay method of machine moulding results in pressed bricks.(a) True(b) FalseThis question was posed to me during an interview.This intriguing question originated from Manufacture of Brick topic in section Materials for Construction of Basic Civil Engineering

An excess of magnesium oxide after 5% is harmful to cement.(a) True(b) FalseI had been asked this question in my homework.This key question is from Ingredients of Cement in portion Materials for Construction of Basic Civil Engineering

Sulphur in cement is present in what amount?(a) 0.5 – 6 g(b) 1 – 2.5%(c) 0.5 – 6%(d) 1 – 2.5gI had been asked this question in a national level competition.Query is from Ingredients of Cement in division Materials for Construction of Basic Civil Engineering

Excess of Alkali in cement results in:(a) Dry cement paste(b) Efflorescence(c) Less plasticity(d) Unsound cementI had been asked this question in an interview.Origin of the question is Ingredients of Cement topic in section Materials for Construction of Basic Civil Engineering

Wet cement can cause severe skin burns if not washed off with water immediately.(a) True(b) FalseThis question was addressed to me during an online exam.My question is taken from Properties of Cement in section Materials for Construction of Basic Civil Engineering

The density of wet sand is:(a) 1922 kg/m^3(b) 1682 kg/m^3(c) 1281 kg/m^3(d) 1522 kg/m^3The question was posed to me in a national level competition.This intriguing question comes from Properties of Sand topic in division Materials for Construction of Basic Civil Engineering

Bulking is the phenomenon applicable to both fine and coarse aggregates.(a) True(b) FalseThe question was posed to me by my school principal while I was bunking the class.This interesting question is from Bulking of Sand topic in section Materials for Construction of Basic Civil Engineering

Recycling steel reduces:(a) Energy use by 75%(b) Energy use by 50%(c) Energy use by 35%(d) Energy use by 20%This question was posed to me in a job interview.Origin of the question is Cost Effective Materials in section Materials for Construction of Basic Civil Engineering

Which of the following PVC product is not there in the market?(a) PVC brick decor(b) PVC door(c) PVC cement(d) PVC plasterThis question was posed to me during an interview.My question is based upon PVC topic in portion Materials for Construction of Basic Civil Engineering

Hardness of rubber is measured on which scale?(a) Rockwell scale(b) Shore scale(c) Mohr’s scale(d) Vicker’s scaleThis question was posed to me in exam.My doubt is from Rubber topic in chapter Materials for Construction of Basic Civil Engineering

How many different categories of glass are there?(a) 5(b) 4(c) 2(d) 3This question was posed to me by my college director while I was bunking the class.This is a very interesting question from Glass topic in chapter Materials for Construction of Basic Civil Engineering

What is added to rubber to make it a thermosetting polymer?(a) Potassium(b) Sulphur(c) Sodium(d) PhosphorousThis question was addressed to me during an internship interview.This interesting question is from Rubber topic in division Materials for Construction of Basic Civil Engineering

A narrow gradation is also called:(a) Gap gradation(b) Uniform gradation(c) Rich gradation(d) Open gradationThe question was posed to me in unit test.My doubt stems from Sieve Analysis topic in section Materials for Construction of Basic Civil Engineering

The sieve sets for coarse aggregate ranges from:(a) 40-4.75mm(b) 20-4.75mm(c) 80-4.75mm(d) 100-4.75mmI have been asked this question in an international level competition.This interesting question is from Sieve Analysis topic in section Materials for Construction of Basic Civil Engineering

Lithophone is a base widely used for exterior works.(a) True(b) FalseThis question was addressed to me in an international level competition.I'd like to ask this question from Characteristics and Ingredients of Paint in portion Materials for Construction of Basic Civil Engineering

Aluminium appears greyish in colour in pure form.(a) True(b) FalseThe question was posed to me during an interview.My question is from Properties and Uses of Aluminium topic in division Materials for Construction of Basic Civil Engineering

Aluminium has a higher maintenance cost.(a) True(b) FalseI have been asked this question in examination.I want to ask this question from Properties and Uses of Aluminium topic in division Materials for Construction of Basic Civil Engineering

How should be the colour of good quality timber?(a) Light(b) Gradient(c) Dark(d) BrownI had been asked this question in homework.This intriguing question comes from Qualities of Timber topic in portion Materials for Construction of Basic Civil Engineering

The defect indicated by curvature formed in a transverse direction is:(a) Bow(b) Spring(c) Twist(d) CupThis question was addressed to me in unit test.Question is from Defects and Preservation of Timber in division Materials for Construction of Basic Civil Engineering

Which of the following is an example of soft wood?(a) Sal(b) Oak(c) Deodar(d) MahoganyThis question was posed to me in an internship interview.This interesting question is from Classification of Timber topic in portion Materials for Construction of Basic Civil Engineering

Which tile is the most versatile?(a) Porcelain(b) Shale(c) Slate(d) GraniteThe question was asked in an online interview.This interesting question is from Types of Tiles in portion Materials for Construction of Basic Civil Engineering

What should be observed ideally when two bricks are struck together?(a) Dull sound(b) Sides shatter(c) Clear ringing sound(d) Brick breaksI got this question in semester exam.The doubt is from Tests on Bricks topic in portion Materials for Construction of Basic Civil Engineering

Unburnt bricks are also called:(a) Dry bricks(b) Clayey bricks(c) Kucha bricks(d) Clamp bricksI have been asked this question at a job interview.My query is from Types of Bricks in section Materials for Construction of Basic Civil Engineering

How many methods of moulding brick earth are there?(a) 3(b) 5(c) 2(d) 4This question was posed to me during an interview.This is a very interesting question from Manufacture of Brick topic in chapter Materials for Construction of Basic Civil Engineering

What happens to raw bricks if an excess of alumina is present?(a) Becomes hard(b) Becomes brittle(c) Decay(d) ShrinkageThis question was addressed to me in homework.My doubt stems from Composition of Good Brick Earth topic in portion Materials for Construction of Basic Civil Engineering

In what form should lime be present in the brick earth?(a) Paste(b) Lump(c) Clinker(d) PowderThe question was asked at a job interview.My question is taken from Composition of Good Brick Earth topic in section Materials for Construction of Basic Civil Engineering