415 + Interview Questions in Materials For Construction in Basic Civil Engineering Page 4 InterviewSolution

151.	Which of the following types of cement is used in marine structures?(a) Expanding cement(b) High alumina cement(c) Blast furnace slag cement(d) White cementThis question was addressed to me in a job interview.The doubt is from Types of Cement and Uses in section Materials for Construction of Basic Civil Engineering
Answer» The correct option is (c) Blast furnace slag cement For explanation I would say: Blast furnace slag cement is obtained by combining slag and cement clinkers.These have less HEAT of hydration and are not AFFECTED by SEA water.Hence, can be used for MARINE structures.

Discussion

152.	Who invented Portland cement and in which year?(a) William Aspdin, 1824(b) William Aspdin, 1840s(c) Joseph Aspdin, 1840s(d) Joseph Aspdin, 1824I got this question in an interview for internship.My question is taken from Properties of Cement topic in chapter Materials for Construction of Basic Civil Engineering
Answer» CORRECT answer is (B) William Aspdin, 1840s For explanation I would say: Joseph Aspdin PATENTED Portland cement in 1824.William Aspdin, his son is REGARDED as the inventor of MODERN Portland cement due to his developments in 1840s.

Discussion

153.	By which of the following ways is lime obtained?(a) Naturally(b) Quarrying(c) Burning limestone(d) Crushing limestoneI had been asked this question in examination.Question is taken from Source and Classification of Lime topic in portion Materials for Construction of Basic Civil Engineering
Answer» Right answer is (c) Burning limestone To explain: It is not AVAILABLE naturally.It is obtained by burning limestone, SHELLS of sea ANIMALS and boulders of limestone from old river beds.

Discussion

154.	Which one of the following is an advantage of Kiln burning over clamp burning?(a) Burning is not complete(b) Requires more fuel(c) No wastage of lime(d) Time effectiveThis question was addressed to me in an interview for job.My doubt stems from Calcination and Slaking of Lime in section Materials for Construction of Basic Civil Engineering
Answer» Right option is (d) TIME effective Best explanation: Clamp burning takes weeks to burn LIMESTONE, WHEREAS kiln burning takes only hours.Kiln burning OPERATION involves loading, burning, cooling and unloading.All these lead to wastage of lime in some AMOUNT.

Discussion

155.	What does ‘h’ represents in the formula used to calculate the bulking factor?(a) Height of jar(b) Height of saturated sample(c) Height of dry sample(d) Height of waterThe question was posed to me in semester exam.Question is taken from Bulking of Sand topic in division Materials for Construction of Basic Civil Engineering
Answer» Correct option is (B) Height of saturated sample The explanation is: The FORMULA used to calculate BULKING factor is (H-h/h) x 100%.‘H’ represents height to which DRY sand sample is filled in jar and ‘h’ represents the height of the saturated sample.

Discussion

156.	___________ are widely used in rural areas for construction of walls?(a) Red bricks(b) Stabilised mud blocks(c) Lime based bricks(d) Hollow bricksThe question was posed to me in homework.Question is taken from Cost Effective Materials in portion Materials for Construction of Basic Civil Engineering
Answer» The correct answer is (b) STABILISED mud BLOCKS Explanation: Stabilised mud blocks involves MIXING cementitious ADMIXTURES like cement and lime. It gets more compressive strength and EROSION resistance than regular mud bricks.

Discussion

157.	Stone blocks help in saving materials by reducing wall thickness from:(a) 30-20mm(b) 20-10cm(c) 20-10mm(d) 30-20cmThis question was addressed to me in my homework.This interesting question is from Cost Effective Materials topic in portion Materials for Construction of Basic Civil Engineering
Answer» The correct option is (d) 30-20CM Best explanation: The wall thickness of 30cm is REDUCED to 20cm by USING stone blocks.It is MANUFACTURED in SIZE of 30x20x15cm and weighs 18kg.

Discussion

158.	Flexible PVC is used for:(a) Pipes(b) Partition walls(c) Flooring(d) Door framesI got this question in final exam.I'm obligated to ask this question of PVC topic in chapter Materials for Construction of Basic Civil Engineering
Answer» The correct answer is (c) Flooring To EXPLAIN I would say: It is inexpensive, attractive and durable as a flooring material.It is possible to PRINT 3D DESIGNS on to this and protect it using a clear wear coat.The tough surface prevents microbes from breeding and KEEPS the FLOOR sterile.

Discussion

159.	Rubber is extremely water-proof.(a) True(b) FalseI got this question during an online exam.The doubt is from Rubber topic in portion Materials for Construction of Basic Civil Engineering
Answer» The correct ANSWER is (a) True The best explanation: Rubber consists of mainly hydrocarbons.It ALSO contains resins, fatty acids and sterols.These provide water PROOFING quality to rubber.

Discussion

160.	How is percentage retained on each sieve calculated?(a) wsample/wsieve(b) wsieve/wsample(c) wsieve-wsample(d) wsample-wsieveI had been asked this question in an online quiz.My question is taken from Sieve Analysis in chapter Materials for Construction of Basic Civil Engineering
Answer» Correct answer is (b) wsieve/wsample To explain: The percentage retained is CALCULATED by dividing WEIGHT of SAMPLE retained by the weight of the total sample, taken in beginning of test.

Discussion

161.	How many ingredients are varnish composed of?(a) 2(b) 3(c) 4(d) 5I got this question in my homework.This is a very interesting question from Varnish topic in section Materials for Construction of Basic Civil Engineering
Answer» Right OPTION is (b) 3 Easy explanation: The three COMPONENTS of VARNISH are resins, DRIERS and solvents.

Discussion

162.	Which of the below vehicles are used for ordinary work?(a) Nut oil(b) Poppy oil(c) Stand oil(d) Linseed oilI had been asked this question during an online interview.Asked question is from Characteristics and Ingredients of Paint topic in chapter Materials for Construction of Basic Civil Engineering
Answer» The CORRECT option is (a) Nut oil To elaborate: Nut oil is COLOURLESS and it dries rapidly. It is cheap as it is PREPARED from ORDINARY walnuts.Hence, these are used for ordinary works.

Discussion

163.	Flat iron bars are used generally for:(a) R.C.C(b) Grill work(c) Roofing(d) TrussI had been asked this question during an interview.This is a very interesting question from Market Forms and Uses of Steel topic in section Materials for Construction of Basic Civil Engineering
Answer» Correct CHOICE is (b) GRILL WORK Explanation: These are available in VARYING widths ranging from 10mm-400mm and THICKNESS from 3mm-40mm.These are widely used in the construction of steel grill work for windows and gates.

Discussion

164.	Which of the below is not a disadvantage of using ribbed-torsteel bars?(a) High labour charge(b) Not easily identifiable(c) Weaker than plain round steel(d) Arc welding is not possibleThis question was posed to me during an interview.My query is from Market Forms and Uses of Steel in portion Materials for Construction of Basic Civil Engineering
Answer» Right option is (a) HIGH labour charge Explanation: These bars are produced from ribbed-torsteel which is a DEFORMED high strength steel.These bars have projections (ribs) on their surface.The BENDING, fixing and handling of these bars are simplified and it results in less labour charge.

Discussion

165.	Wax or paint is applied to end-grain of lumber to be air dried, in order to seal the ends.(a) True(b) FalseThis question was posed to me in quiz.My question comes from Manufacture of Timber in section Materials for Construction of Basic Civil Engineering
Answer» CORRECT choice is (a) True To explain I WOULD say: To ENSURE uniform DRYING of lumber, end-grains are waxed or painted.They slow down drying rate of EXTREMITIES.

Discussion

166.	What causes dry rot in timber?(a) Bacteria(b) Beetle(c) White ants(d) FungusThis question was addressed to me in an online interview.My enquiry is from Defects and Preservation of Timber topic in division Materials for Construction of Basic Civil Engineering
Answer» The correct option is (d) Fungus Explanation: A fungi called Meruliam Lechrymans causes the DRY rot.It REDUCES wood to FINE powdery substance.It first sets in the SAP wood and advances.It makes TIMBER brittle, cohesion is lost and finally powdered.

Discussion

167.	Hard wood is strong in tension and weak in compression.(a) True(b) FalseI got this question during an interview.Origin of the question is Classification of Timber in chapter Materials for Construction of Basic Civil Engineering
Answer» Right answer is (b) False Easy EXPLANATION: Soft wood is STRONG in tension and weak in COMPRESSION.Hard wood is EQUALLY strong in tension and compression.

Discussion

168.	Which of the below type of timber has Young’s Modulus greater than 9800 N/mm^2, but less than 12600 N/mm^2?(a) Average timber(b) Very good timber(c) Good timber(d) Light timberI have been asked this question in an online interview.This intriguing question originated from Classification of Timber in division Materials for Construction of Basic Civil Engineering
Answer» The correct CHOICE is (c) Good TIMBER Easiest explanation: Average timber has Young’s Modulus (E) VARYING between 6600 N/mm^2 and 9800 N/mm^2.Very good timber has E GREATER than 12600 N/mm^2.There is no CLASSIFICATION as light timber based on E.

Discussion

169.	How is the hardness of brick tested?(a) Using finger nail(b) Using hardness apparatus(c) Using hammer(d) Using chiselThe question was asked in my homework.My query is from Tests on Bricks topic in division Materials for Construction of Basic Civil Engineering
Answer» RIGHT choice is (a) Using finger nail To EXPLAIN: BRICK is scratched using finger nail.If there are no visible scratches made on the brick surface, it is said to be sufficiently HARD.

Discussion

170.	Why is the process of weathering performed?(a) To remove organic matter(b) To prepare for next process(c) To improve plasticity(d) To dry clayThe question was posed to me in an interview.This key question is from Manufacture of Brick in portion Materials for Construction of Basic Civil Engineering
Answer» The correct choice is (c) To improve plasticity To ELABORATE: WEATHERING is a process of softening dug out clay by ADDING LITTLE WATER and then exposing it to the atmosphere.Then it is heated and left for few weeks to undergo weathering.

Discussion

171.	Which of the following type of bricks is made for jambs of doors and windows?(a) Cant bricks(b) Arch bricks(c) Lintel bricks(d) Hinged bricksThe question was asked in an interview.My question is based upon Types of Bricks topic in portion Materials for Construction of Basic Civil Engineering
Answer» Correct OPTION is (a) Cant bricks Easy EXPLANATION: Purpose-made bricks are those made to achieve a specific purpose.They can be SPLAY or Cant, Arch, ORNAMENTAL, etc. They are costly but HELP in quick construction.

Discussion

172.	Loamy, mild or sandy clay has __________ percentage of alkali?(a) 5%(b) 1%(c) 4%(d) 0%I had been asked this question by my school teacher while I was bunking the class.My query is from Composition of Good Brick Earth in division Materials for Construction of Basic Civil Engineering
Answer» The correct choice is (d) 0% To explain I would say: It does not contain any alkali contents.It contains 5% of organics matter, 1% of LIME, magnesia and oxides of iron, 66% of SILICA and 27% of ALUMINA.

Discussion

173.	How many major ingredients are present in the composition of cement?(a) 8(b) 5(c) 10(d) 6The question was asked by my college professor while I was bunking the class.The origin of the question is Ingredients of Cement in section Materials for Construction of Basic Civil Engineering
Answer» Correct answer is (a) 8 To EXPLAIN: There are 8 main ingredients present in cement.They are lime, SILICA, alumina, magnesia, IRON oxide, CALCIUM sulphate, sulphur TRIOXIDE and alkalis.

Discussion

174.	Which one of the below is the most important ingredient in the brick earth?(a) Alumina(b) Lime(c) Silica(d) MagnesiaThis question was posed to me in an interview for job.Query is from Composition of Good Brick Earth in portion Materials for Construction of Basic Civil Engineering
Answer» The CORRECT OPTION is (c) SILICA The best I can EXPLAIN: The amount of silica present in BRICK earth is 50-60% and it prevents cracking and warping of raw bricks.

Discussion

175.	What effect does calcium sulphate have on cement?(a) Retards setting action(b) Acts as flux(c) Imparts colour(d) Reduces strengthThe question was asked during an interview.Query is from Ingredients of Cement topic in division Materials for Construction of Basic Civil Engineering
Answer» Correct answer is (a) Retards setting action Explanation: CALCIUM SULPHATE is FOUND in cement in the form of gypsum.Its slows down the setting TIME of cement.

Discussion

176.	Which IS code gives the grading of sand?(a) IS 456(b) IS 383(c) IS 2368(d) IS 1542I have been asked this question during a job interview.My question is from Source and Classification of Sand in division Materials for Construction of Basic Civil Engineering
Answer» The correct answer is (B) IS 383 To EXPLAIN I would say: IS code 383-1970 GIVES the classification of sand based on the grading. There are 4 grading zones. For each sieve size, there is a SPECIFIC % of particle PASSING through that sieve, denoted in the respective zone.

Discussion

177.	Fibre Reinforced Concrete (FRC) is used in:(a) Pavements(b) Foundation(c) Slab(d) BeamI got this question during an online exam.This intriguing question comes from Cost Effective Materials in chapter Materials for Construction of Basic Civil Engineering
Answer» Correct option is (a) PAVEMENTS Easiest EXPLANATION: It has superior fatigue, crack and impacts resistance.Due to its HIGH durability, it is used in ROADS, pavements, air FIELDS, etc.

Discussion

178.	Soil-cement blocks help in reducing the amount of:(a) Sand(b) Cement(c) Water(d) MortarI have been asked this question in semester exam.My question comes from Cost Effective Materials in chapter Materials for Construction of Basic Civil Engineering
Answer» The CORRECT option is (b) Cement The explanation: These are prepared by mixing pulverised SOIL and PORTLAND cement in a specific amount.Water is added and it is compacted to high DENSITY. These reduce cement CONSUMPTION.

Discussion

179.	Which of the following glues is used to join light metals?(a) Metal glue(b) Cycle weld(c) Araldite glue(d) Special glueThis question was posed to me in my homework.My question is taken from Adhesives topic in section Materials for Construction of Basic Civil Engineering
Answer» Correct answer is (c) Araldite GLUE The EXPLANATION: Special glue is USED to join metals in general.Cycle WELD is used to join aluminium sheet and araldite glue is used to join light metals.

Discussion

180.	Nitrocellulose glue is prepared from:(a) Pyridine(b) Benzene(c) Pyroxylin(d) ResinI had been asked this question in exam.Asked question is from Adhesives topic in chapter Materials for Construction of Basic Civil Engineering
Answer» Right OPTION is (c) Pyroxylin Easiest explanation: Pyroxylin is a nitrated cellulose.It is derived by TREATING cellulose with a NITRIC acid. It produces films which adheres to a GLASS surface.

Discussion

181.	Nitrocellulose glue is prepared from:(a) Pyridine(b) Benzene(c) Pyroxylin(d) ResinI got this question in exam.I'm obligated to ask this question of Adhesives in section Materials for Construction of Basic Civil Engineering
Answer»

Discussion

182.	Which additive in PVC pipe leads to the contamination of potable water?(a) Lead(b) VCM(c) Phthalates(d) SulphurThe question was posed to me in a national level competition.This is a very interesting question from PVC topic in division Materials for Construction of Basic Civil Engineering
Answer» Right answer is (a) Lead Easy explanation: Lead is added to increase stability and WORK ability of PVC PIPES. It is found to leach into POTABLE water from the surface of PVC pipes, hence, contaminating it.

Discussion

183.	Which of the below can be used as fine aggregates?(a) Lime(b) Splinters(c) Surkhi(d) Rice HuskThis question was posed to me during an interview.My question is based upon Fine Aggregates in portion Materials for Construction of Basic Civil Engineering
Answer» The CORRECT choice is (c) Surkhi The BEST explanation: Surkhi consists of BROKEN brick pieces. They can be ground to the size of fine aggregates.

Discussion

184.	Synthetic rubber paints are prepared from:(a) Resin(b) Rubber(c) Synthetic fibres(d) Polyvinyl ChlorideI have been asked this question by my college professor while I was bunking the class.My question is from Types and Uses of Paints topic in portion Materials for Construction of Basic Civil Engineering
Answer» The correct OPTION is (a) Resin To EXPLAIN: SYNTHETIC RUBBER paint is prepared from resins.These are chemically resistant and offer protection against heavy rain, sunlight.

Discussion

185.	Solvents contain high levels of polyunsaturated fatty acids.(a) True(b) FalseI have been asked this question in an interview for job.The doubt is from Varnish topic in section Materials for Construction of Basic Civil Engineering
Answer» The correct option is (b) False Easy explanation: DRYING oils are the ONES that contain HIGH levels of polyunsaturated FATTY acids.These include linseed oil, tung oil and walnut oil.

Discussion

186.	Which of the below is not an ISI classified channel section?(a) ISLC(b) ISJC(c) ISHC(d) ISMCI had been asked this question in an international level competition.My question is based upon Market Forms and Uses of Steel topic in chapter Materials for Construction of Basic Civil Engineering
Answer» The correct option is (c) ISHC Easiest EXPLANATION: ISLC stands for Indian Standards LIGHT CHANNEL.Similarly, there are Junior (J), Medium (M) and SPECIAL (S) Channels.There is no heavy (H) Channel.

Discussion

187.	_________ base is generally used for priming coat to new wood work?(a) Antimony white(b) Titanium dioxide(c) Aluminium powder(d) Red leadI got this question in examination.This interesting question is from Characteristics and Ingredients of Paint topic in section Materials for Construction of Basic Civil Engineering
Answer» CORRECT OPTION is (C) Aluminium powder To explain I would SAY: Aluminium powder FORMS bulk of aluminium paints. It prevents warping and cracking of wood when applied to a new wood work.

Discussion

188.	Paint should provide resistance to:(a) Corrosion(b) Sound(c) Heat(d) WarpingThe question was asked in an interview for internship.Asked question is from Characteristics and Ingredients of Paint topic in division Materials for Construction of Basic Civil Engineering
Answer» Correct option is (a) Corrosion For EXPLANATION: PAINT should resist corrosion and PROTECT the surface over which it is APPLIED.

Discussion

189.	Which method leaves the timber brittle after seasoning?(a) Water seasoning(b) Kiln seasoning(c) Electric seasoning(d) BoilingThis question was posed to me by my college professor while I was bunking the class.My question comes from Seasoning of Timber topic in chapter Materials for Construction of Basic Civil Engineering
Answer» The CORRECT choice is (a) Water seasoning For explanation: Timber PIECES are totally immersed in running water for 2-4 weeks.The sap, ORGANIC matter is CARRIED away by water in water seasoning.It renders the timber BRITTLE.

Discussion

190.	__________ defects is indicated by red/yellow tinge in wood.(a) Froxiness(b) Druxiness(c) Callus(d) BurlsI have been asked this question in class test.This interesting question is from Defects and Preservation of Timber topic in chapter Materials for Construction of Basic Civil Engineering
Answer» Right option is (a) Froxiness The BEST I can explain: Druxiness is INDICATED by white spots.Callus is soft tissue that covers wound of a tree.Burls are SWELLING on the SURFACE of the tree.

Discussion

191.	Kiln seasoning gives stronger timber.(a) True(b) FalseThis question was posed to me in an internship interview.My enquiry is from Seasoning of Timber in chapter Materials for Construction of Basic Civil Engineering
Answer» CORRECT choice is (b) False The explanation is: Natural SEASONING is the one that gives stronger TIMBER.Kiln seasoning RESULTS in weaker, lighter timber.

Discussion

192.	What is the density of a light timber?(a) 5.5 kN/m^3(b) Less than 2.5 kN/m^3(c) 2.5 kN/m^3(d) Less than 5.5 kN/m^3This question was addressed to me in quiz.My question is based upon Classification of Timber topic in portion Materials for Construction of Basic Civil Engineering
Answer» The correct choice is (d) Less than 5.5 kN/m^3 The EXPLANATION is: Density of LIGHT to very light timber is less than 5.5 kN/m^3.Moderate timber has density between 5.5 and 7.5 kN/m^3 and heavy to very heavy timber has density GREATER than 7.5 kN/m^3.

Discussion

193.	Which of the following bricks types use the least amount of clay?(a) Hollow bricks(b) Coping bricks(c) Channel bricks(d) Perforated bricksI got this question during an interview.My doubt is from Types of Bricks in section Materials for Construction of Basic Civil Engineering
Answer» Right choice is (d) Perforated BRICKS Explanation: Perforated bricks contain CYLINDRICAL HOLES throughout their thickness.These are light in weight.They use a very LITTLE AMOUNT of clay.

Discussion

194.	Which of the following is not a feature of second class bricks?(a) Have small irregularities(b) Water absorption is between 20-25%(c) Rectangular in shape(d) Free from cracksI got this question by my school teacher while I was bunking the class.The query is from Types of Bricks topic in chapter Materials for Construction of Basic Civil Engineering
Answer» Correct OPTION is (B) Water absorption is between 20-25% EASY explanation: The water absorption of SECOND class bricks is less than 22%.20-25% is the range of water absorption of third class bricks.

Discussion

195.	How much maximum percentage by mass of performance improvers can be added in grade 33 OPC?(a) 0.5(b) 1(c) 5(d) 0.1This question was posed to me during an online interview.This intriguing question comes from Grades of Cement topic in portion Materials for Construction of Basic Civil Engineering
Answer» The correct choice is (C) 5 The best I can explain: PERFORMANCE improvers include FLY ash, slag, rice husk, ash, etc.These can be added in quantity of 5% by mass as per Table 1 GIVEN in IS 269.

Discussion

196.	Which of the following cannot be added in 33 grade OPC after burning stage?(a) Gypsum(b) Water(c) Colouring Agents(d) ClayI got this question during an internship interview.My enquiry is from Grades of Cement in division Materials for Construction of Basic Civil Engineering
Answer» The correct answer is (d) Clay Explanation: The details and specifications regarding the manufacture of 33 GRADE OPC are mentioned in IS 269.It says that after burning, only CERTAIN element like gypsum, water, PERFORMANCE enhancers, colouring agent can be added.More RAW material-clay cannot be added.

Discussion

197.	Which one of the below is rarely used as fuel in burning stage of wet process of cement manufacturing?(a) Wood(b) Gas(c) Pulverised coal(d) Fuel oilThe question was asked in final exam.This intriguing question originated from Manufacture of Cement topic in chapter Materials for Construction of Basic Civil Engineering
Answer» Correct choice is (a) Wood Easiest explanation: Clinkers are FORMED at a temperature of 1450^o c.Wood BURNS at a temperature of 593^oc, natural gas at 2000^oc, coal at 3500^oc and OIL at 2150^oc.Wood cannot offer higher temperature at lower cost, TIME and ENERGY.

Discussion

198.	How is the argillaceous material used in the manufacture of cement stored?(a) Silos(b) Basins(c) Bags(d) Storage tanksThis question was posed to me in my homework.Query is from Manufacture of Cement in division Materials for Construction of Basic Civil Engineering
Answer» The correct answer is (B) Basins For explanation I would say: Clay is the ARGILLACEOUS material used.These are MIXED with WATER THOROUGHLY and washed in a container-wash mill.The wet mixture is then stored in basins.

Discussion

199.	Which equipment is used to test the setting time of cement?(a) Core cutter(b) Vibrator(c) Universal testing machine (UTM)(d) Vicat apparatusThe question was asked in an interview for internship.This intriguing question comes from Properties of Cement in section Materials for Construction of Basic Civil Engineering
Answer» Correct option is (d) Vicat apparatus To explain: Core cutter is used to determine DRY density of soil.Vibrator is used in sieve analysis.UTM can be used to test various parameters – tension, BENDING, shear of various materials.Vicat apparatus consists of a needle, used to PENETRATE the cement PASTE sample.

Discussion

200.	The lime-milk can be utilized after and for:(a) 2-3 days for putty(b) 2-3 hours for putty(c) 2-3 days for waste water treatment(d) 2-3 hours for waste water treatmentThis question was posed to me in exam.Asked question is from Calcination and Slaking of Lime topic in chapter Materials for Construction of Basic Civil Engineering
Answer» Right CHOICE is (a) 2-3 DAYS for putty To explain: The lime-milk is ALLOWED to stand for the REQUISITE time of 2-3 days.It MATURES itself and forms lime putty.

Discussion

Explore topic-wise InterviewSolutions in .

By which of the following ways is lime obtained?(a) Naturally(b) Quarrying(c) Burning limestone(d) Crushing limestoneI had been asked this question in examination.Question is taken from Source and Classification of Lime topic in portion Materials for Construction of Basic Civil Engineering

___________ are widely used in rural areas for construction of walls?(a) Red bricks(b) Stabilised mud blocks(c) Lime based bricks(d) Hollow bricksThe question was posed to me in homework.Question is taken from Cost Effective Materials in portion Materials for Construction of Basic Civil Engineering

Stone blocks help in saving materials by reducing wall thickness from:(a) 30-20mm(b) 20-10cm(c) 20-10mm(d) 30-20cmThis question was addressed to me in my homework.This interesting question is from Cost Effective Materials topic in portion Materials for Construction of Basic Civil Engineering

Flexible PVC is used for:(a) Pipes(b) Partition walls(c) Flooring(d) Door framesI got this question in final exam.I'm obligated to ask this question of PVC topic in chapter Materials for Construction of Basic Civil Engineering

Rubber is extremely water-proof.(a) True(b) FalseI got this question during an online exam.The doubt is from Rubber topic in portion Materials for Construction of Basic Civil Engineering

How is percentage retained on each sieve calculated?(a) wsample/wsieve(b) wsieve/wsample(c) wsieve-wsample(d) wsample-wsieveI had been asked this question in an online quiz.My question is taken from Sieve Analysis in chapter Materials for Construction of Basic Civil Engineering

How many ingredients are varnish composed of?(a) 2(b) 3(c) 4(d) 5I got this question in my homework.This is a very interesting question from Varnish topic in section Materials for Construction of Basic Civil Engineering

Which of the below vehicles are used for ordinary work?(a) Nut oil(b) Poppy oil(c) Stand oil(d) Linseed oilI had been asked this question during an online interview.Asked question is from Characteristics and Ingredients of Paint topic in chapter Materials for Construction of Basic Civil Engineering

Flat iron bars are used generally for:(a) R.C.C(b) Grill work(c) Roofing(d) TrussI had been asked this question during an interview.This is a very interesting question from Market Forms and Uses of Steel topic in section Materials for Construction of Basic Civil Engineering

Wax or paint is applied to end-grain of lumber to be air dried, in order to seal the ends.(a) True(b) FalseThis question was posed to me in quiz.My question comes from Manufacture of Timber in section Materials for Construction of Basic Civil Engineering

What causes dry rot in timber?(a) Bacteria(b) Beetle(c) White ants(d) FungusThis question was addressed to me in an online interview.My enquiry is from Defects and Preservation of Timber topic in division Materials for Construction of Basic Civil Engineering

Hard wood is strong in tension and weak in compression.(a) True(b) FalseI got this question during an interview.Origin of the question is Classification of Timber in chapter Materials for Construction of Basic Civil Engineering

How is the hardness of brick tested?(a) Using finger nail(b) Using hardness apparatus(c) Using hammer(d) Using chiselThe question was asked in my homework.My query is from Tests on Bricks topic in division Materials for Construction of Basic Civil Engineering

Why is the process of weathering performed?(a) To remove organic matter(b) To prepare for next process(c) To improve plasticity(d) To dry clayThe question was posed to me in an interview.This key question is from Manufacture of Brick in portion Materials for Construction of Basic Civil Engineering

Which of the following type of bricks is made for jambs of doors and windows?(a) Cant bricks(b) Arch bricks(c) Lintel bricks(d) Hinged bricksThe question was asked in an interview.My question is based upon Types of Bricks topic in portion Materials for Construction of Basic Civil Engineering

Loamy, mild or sandy clay has __________ percentage of alkali?(a) 5%(b) 1%(c) 4%(d) 0%I had been asked this question by my school teacher while I was bunking the class.My query is from Composition of Good Brick Earth in division Materials for Construction of Basic Civil Engineering

How many major ingredients are present in the composition of cement?(a) 8(b) 5(c) 10(d) 6The question was asked by my college professor while I was bunking the class.The origin of the question is Ingredients of Cement in section Materials for Construction of Basic Civil Engineering

Which one of the below is the most important ingredient in the brick earth?(a) Alumina(b) Lime(c) Silica(d) MagnesiaThis question was posed to me in an interview for job.Query is from Composition of Good Brick Earth in portion Materials for Construction of Basic Civil Engineering

What effect does calcium sulphate have on cement?(a) Retards setting action(b) Acts as flux(c) Imparts colour(d) Reduces strengthThe question was asked during an interview.Query is from Ingredients of Cement topic in division Materials for Construction of Basic Civil Engineering

Which IS code gives the grading of sand?(a) IS 456(b) IS 383(c) IS 2368(d) IS 1542I have been asked this question during a job interview.My question is from Source and Classification of Sand in division Materials for Construction of Basic Civil Engineering

Fibre Reinforced Concrete (FRC) is used in:(a) Pavements(b) Foundation(c) Slab(d) BeamI got this question during an online exam.This intriguing question comes from Cost Effective Materials in chapter Materials for Construction of Basic Civil Engineering

Soil-cement blocks help in reducing the amount of:(a) Sand(b) Cement(c) Water(d) MortarI have been asked this question in semester exam.My question comes from Cost Effective Materials in chapter Materials for Construction of Basic Civil Engineering

Which of the following glues is used to join light metals?(a) Metal glue(b) Cycle weld(c) Araldite glue(d) Special glueThis question was posed to me in my homework.My question is taken from Adhesives topic in section Materials for Construction of Basic Civil Engineering

Nitrocellulose glue is prepared from:(a) Pyridine(b) Benzene(c) Pyroxylin(d) ResinI had been asked this question in exam.Asked question is from Adhesives topic in chapter Materials for Construction of Basic Civil Engineering

Nitrocellulose glue is prepared from:(a) Pyridine(b) Benzene(c) Pyroxylin(d) ResinI got this question in exam.I'm obligated to ask this question of Adhesives in section Materials for Construction of Basic Civil Engineering

Which additive in PVC pipe leads to the contamination of potable water?(a) Lead(b) VCM(c) Phthalates(d) SulphurThe question was posed to me in a national level competition.This is a very interesting question from PVC topic in division Materials for Construction of Basic Civil Engineering

Which of the below can be used as fine aggregates?(a) Lime(b) Splinters(c) Surkhi(d) Rice HuskThis question was posed to me during an interview.My question is based upon Fine Aggregates in portion Materials for Construction of Basic Civil Engineering

Solvents contain high levels of polyunsaturated fatty acids.(a) True(b) FalseI have been asked this question in an interview for job.The doubt is from Varnish topic in section Materials for Construction of Basic Civil Engineering

Which of the below is not an ISI classified channel section?(a) ISLC(b) ISJC(c) ISHC(d) ISMCI had been asked this question in an international level competition.My question is based upon Market Forms and Uses of Steel topic in chapter Materials for Construction of Basic Civil Engineering

Paint should provide resistance to:(a) Corrosion(b) Sound(c) Heat(d) WarpingThe question was asked in an interview for internship.Asked question is from Characteristics and Ingredients of Paint topic in division Materials for Construction of Basic Civil Engineering

__________ defects is indicated by red/yellow tinge in wood.(a) Froxiness(b) Druxiness(c) Callus(d) BurlsI have been asked this question in class test.This interesting question is from Defects and Preservation of Timber topic in chapter Materials for Construction of Basic Civil Engineering

Kiln seasoning gives stronger timber.(a) True(b) FalseThis question was posed to me in an internship interview.My enquiry is from Seasoning of Timber in chapter Materials for Construction of Basic Civil Engineering

What is the density of a light timber?(a) 5.5 kN/m^3(b) Less than 2.5 kN/m^3(c) 2.5 kN/m^3(d) Less than 5.5 kN/m^3This question was addressed to me in quiz.My question is based upon Classification of Timber topic in portion Materials for Construction of Basic Civil Engineering

Which of the following bricks types use the least amount of clay?(a) Hollow bricks(b) Coping bricks(c) Channel bricks(d) Perforated bricksI got this question during an interview.My doubt is from Types of Bricks in section Materials for Construction of Basic Civil Engineering

How much maximum percentage by mass of performance improvers can be added in grade 33 OPC?(a) 0.5(b) 1(c) 5(d) 0.1This question was posed to me during an online interview.This intriguing question comes from Grades of Cement topic in portion Materials for Construction of Basic Civil Engineering

Which of the following cannot be added in 33 grade OPC after burning stage?(a) Gypsum(b) Water(c) Colouring Agents(d) ClayI got this question during an internship interview.My enquiry is from Grades of Cement in division Materials for Construction of Basic Civil Engineering

How is the argillaceous material used in the manufacture of cement stored?(a) Silos(b) Basins(c) Bags(d) Storage tanksThis question was posed to me in my homework.Query is from Manufacture of Cement in division Materials for Construction of Basic Civil Engineering