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101.	______________ rollers are also known as tamping rollers.(a) Sheep’s foot(b) Rubber tyred(c) Smooth wheeled(d) PneumaticI had been asked this question in an interview for internship.I would like to ask this question from Earth Compaction Equipments topic in portion Construction Equipments of Construction & Building Materials
Answer» Correct option is (a) Sheep’s FOOT The explanation: Sheep’s foot rollers consist of hollow Steel cylinder or cylinders, each about 1.20 m long and 1.20 m in diameter with 180 mm to 230 mm projections extending out from the curved surface of the cylinder. These projections are made of steel and they resembles Sheep’s feet and are ARRANGED in ROW round the cylinders, the projections in successive rows being STAGGERED.

102.	________________ are cranes of Swing jib type and are mounted on high Steel Towers.(a) Cableways(b) Swing jib(c) Tower(d) GoliathThis question was addressed to me by my college professor while I was bunking the class.Origin of the question is Hoisting Equipments in portion Construction Equipments of Construction & Building Materials
Answer» Right option is (c) TOWER To elaborate: The height of Tower MAYBE 25 to 30 meters and these cranes are found to be extremely useful in the construction of tall buildings in congested area. The ground area required for such cranes is also very small and they can be PREPARED very close to buildings.

103.	________________ is mounted on the wheels and carries two to four teeth, the usual number being three.(a) Rooter(b) Ripper(c) Ditcher(d) TrencherThis question was addressed to me in an interview.This interesting question is from Earth Compaction Equipments topic in section Construction Equipments of Construction & Building Materials
Answer» Correct option is (a) Rooter The explanation is: The Ripper is USED to break up the ground and to pull up the ROOTS. This LOOSE and MATERIAL can be removed by using scraper.

104.	A _____________ dredger essentially consist of a graph suspended from cable.(a) Hydraulic(b) Grab(c) Ladder(d) BucketThe question was posed to me by my school principal while I was bunking the class.This is a very interesting question from Earth Compaction Equipments topic in section Construction Equipments of Construction & Building Materials
Answer» Right option is (b) Grab For explanation: A grab is in the SHAPE of scooper LIKE a quadrant of a circle. It opens in its NORMAL position. On being lowered to the bottom, the grab DIGS into the mud and by SUITABLE arrangement, the grab is closed.

105.	A Grader which is told by a tractor is known as _________(a) Tractor grader(b) Motor grader(c) Scraper(d) Elevating graderThis question was addressed to me in an online quiz.This intriguing question originated from Excavating Equipments in chapter Construction Equipments of Construction & Building Materials
Answer» Right option is (d) ELEVATING grader Explanation: The self PROPELLED GREATER is known as a MOTOR grader. For grading the machine moves forward and steering in CONTROLLING by Steering wheel.

106.	_________________ type of equipment have intermittent cycles of work.(a) Intermittent(b) Continuous flow(c) Mixed(d) CombinationThis question was posed to me in unit test.My question is based upon Operating Cost of Equipment topic in section Construction Equipments of Construction & Building Materials
Answer» Right choice is (a) Intermittent To elaborate: Intermittent TYPE of equipment are operated on series of work cycle and its cycle COMPLETE in itself. Power SHOVELS, draglines, scrappers, BULLDOZERS, concrete mixers, etc. are examples of the intermittent type of equipment.

107.	________________ are the supports of the continuous belt.(a) Idlers(b) Pulleys(c) Cylinders(d) Driving unitsThis question was addressed to me in homework.My doubt is from Conveying Equipment in portion Construction Equipments of Construction & Building Materials
Answer» Right answer is (B) Pulleys To explain: Depending upon the NATURE of work, the IDLER of proper type and size should be SELECTED and while determining the power required to drive the belt conveyor, the friction between the belt and idler surface should be considered.

108.	__________________ is used for carrying out the earth work operation of a road.(a) Roller(b) Tractor(c) Scraper(d) DumperThe question was asked during an internship interview.Enquiry is from Drilling and Road Making Equipments topic in chapter Construction Equipments of Construction & Building Materials
Answer» The correct choice is (C) Scraper To explain I WOULD say: Scraper contains of scoops with a cutting EDGE. The excavated MATERIAL is collected in the body of scrapper or bucket and it is then removed at the place of dumping. Tractor is mainly used to exert a POWERFUL tractive force for towing other machines and equipment.

109.	The _____________ is gripped by a chuck at one end of the drill and is pressed against the target material and rotated.(a) Drilling Coolant(b) Drilling hammer(c) Drilling bit(d) Drilling patternThe question was asked in examination.The question is from Equipments in chapter Construction Equipments of Construction & Building Materials
Answer» The correct answer is (C) Drilling bit Best explanation: The tip of the drill bit does the work of cutting into the target material, either SLICING of thin shaving, GRINDING of small particles or crushing and REMOVING pieces of work. Drill bits are cutting tools used to create CYLINDRICAL holes.

110.	__________________ laser drilling uses a rapid fire burst of pulses micro-machining method.(a) Conventional(b) Trepanning(c) Percussion(d) HydrostaticThe question was asked in an online interview.Question is from Drilling and Road Making Equipments in section Construction Equipments of Construction & Building Materials
Answer» CORRECT option is (c) Percussion To explain: Varying the laser pulse duration, spot size, optics and beam characteristics Percussion laser DRILLING produces a HIGH quality hole with minimum residue and CONSISTENT edge quality from entry to EXIT point. The percussion laser drilling evaporates the machine substrate laser by laser without noticeable strata or striations.

111.	_________________ drilling has rapidly become an inexpensive alternative to outdated mechanical hole drilling methods.(a) Laser(b) Ultrasonic(c) Radiation(d) AtomicThe question was posed to me in an interview for job.My query is from Drilling and Road Making Equipments in chapter Construction Equipments of Construction & Building Materials
Answer» Correct answer is (a) Laser Best explanation: Laser DRILLING provides consistency for MANUFACTURING specifications RELYING on tight TOLERANCE for high depth to diameter ratios. Laser drilling hole sizes vary depending on laser power, Motion Control and galvo system. Rapid prototyping is particularly adaptable to a wide range of hole sizes.

112.	________________ based lubricants do not work well on diamond drill bits.(a) Water(b) Oil(c) Grease(d) GumI have been asked this question in a national level competition.Question is taken from Equipments topic in division Construction Equipments of Construction & Building Materials
Answer» Correct option is (B) Oil To elaborate: Water or coolant must always be used to cool and lubricate the tip. The lubrication reduces heat, prolonging drill BIT life and helps to avoid heat fractures in the material. Water is most often used as a LUBRICANT, SINCE it works very WELL and has no cost.

113.	____________________ is a air operated drill similar to Jack hammer.(a) Jack hammer(b) Drifter(c) Piston drill(d) Stop hammerI have been asked this question at a job interview.The above asked question is from Equipments topic in section Construction Equipments of Construction & Building Materials
Answer» The correct option is (b) Drifter For explanation I would SAY: Drifter is used for drilling vertical or HORIZONTAL holes. They are extensively used in tunnel work and they can DRILL holes of diameter up to about 120 mm. The CUTTINGS can either be removed by air or water.

114.	An _______________ is an oldest type of machine which removes earth.(a) Escalator(b) Excavator(c) Elevator(d) BulldozerI have been asked this question by my school principal while I was bunking the class.The origin of the question is Excavating Equipments in division Construction Equipments of Construction & Building Materials
Answer» CORRECT answer is (b) Excavator Easy explanation: Excavator PERFORMS it work of MOVING the earth while the main unit is stationary. The title effort is required to move the dead weight of earth in a vertical PLANE.

115.	A ____________ is used to level the ground and spreads the loose material.(a) Excavator(b) Scraper(c) Grader(d) TractorI have been asked this question during an online exam.Question is taken from Excavating Equipments in chapter Construction Equipments of Construction & Building Materials
Answer» Correct choice is (c) Grader Best explanation: Grader is a SELF propelled at home by a tractor. It consists of 3 to 4 M LONG angled blade supported on a Framework mounted on wheels. It performs VARIOUS operations like grading, spreading, SIDE cutting and mixing of materials.

116.	________________ are usually mounted on two or four pneumatic tyred wheels.(a) Scraper(b) Backactor(c) Elevator(d) EscalatorThis question was posed to me in my homework.This is a very interesting question from Excavating Equipments topic in division Construction Equipments of Construction & Building Materials
Answer» The correct choice is (a) Scraper Easiest EXPLANATION: An apron is provided in front of the container which opens and close in ORDER to regulate the FLOW of earth in and out of the container. Scrapers are capable of PRODUCING a very smooth and accurate FORMATION level.

117.	__________________ indicates the time duration by which we comes to know about the destructive period of an equipment.(a) Depreciation(b) Inadequacy(c) Obsolescence(d) Normal deteriorationI got this question in an online interview.The above asked question is from Operating Cost of Equipment in section Construction Equipments of Construction & Building Materials
Answer» The correct option is (d) NORMAL deterioration To EXPLAIN: As the equipment becomes old, it may be possible to maintain the quantity of production. But after a certain interval of time, there is MASS effect on the quality of production and at this STAGE, it will be advisable to replace the equipment to maintain the quality of production.

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