Top 550+ Solved Production Engineering MCQ Questions Answer

From 331 to 345 of 771

Q. The equipment used in pit for supply of air is

a. Centrifugal blower

b. Fan

c. Hand blower

d. Reciprocating air compressor

e. Air cylinder

  • a. Centrifugal blower

Q. Material used for surface plate in fitting shop is

a. Mild steel

c. Parting off

d. Cast iron

e. Cast steel

  • d. Cast iron

Q. During ultrasonic machining the metal removal is effected by

a. High frequency sound waves

b. High frequency eddy currents

c. Rubbing action between tool and work piece

d. Hammering action of abrasive particles

e. All of the above

  • d. Hammering action of abrasive particles

Q. Solid punches are used for making holes having diameter equal to

a. Parting off

b. (2.5 - 10) mm

c. (4 - 6) mm

d. (1 - 3) mm

  • b. (2.5 - 10) mm

Q. During arc welding the welding speed is too low, it is likely to result in

a. Excessive pilling up of weld metal

b. Overlapping without penetration edges

c. Wastage of electrode material

d. All of the above

e. None of the above

  • d. All of the above

Q. In arc welding as the thickness of the material to be welded increases, the welding current requirement

a. Decreases

b. 8 mm

c. Does not change

d. Increases

  • e. Increases

Q. Molasses in a foundry shop is used

a. For preventing rusting of castings

b. For use as a fuel in furnace

c. For making moulds

d. For core making

e. For cleaning castings

  • d. For core making

Q. Prescribed maximum reading distance for a 100 mm dial is generally

a. 1.5 - 2.0 m

b. 4 - 5 m

c. 2.5 - 3 m

d. 1 - 1.5 m

e. 1 m

  • c. 2.5 - 3 m

Q. In plasma arc machining the achievable tolerances are nearly

a. 0.01

b. 1

c. 25

d. 250

e. 0.1

  • d. 250

Q. Which of the following material is cut at the highest cutting speed?

a. Copper

b. Alloy steel

c. Brass

d. Cast iron

e. High carbon steel

  • c. Brass

Q. Weld spatter defect in welding is generally the result of

a. Using too high welding current

b. Using too low welding current

c. Low voltage

d. High voltage

e. None of the above

  • a. Using too high welding current

Q. A 30 ton press means

a. The weight of die is 30 tons

b. The quantity of work produced in 8 hours will be 30 tons

c. The flywheel of the press weighs 30 tons

d. Gross weight of the press is 30 tons

e. The pressure exerted by slide is 30 tons

  • e. The pressure exerted by slide is 30 tons

Q. For drills having diameter upto 12.7 mm.

a. Parallel shank is provided

b. Tapered shank is provided

c. Shank may be either of (A) or (B)

d. Bell metal

  • a. Parallel shank is provided

Q. The machining allowance provided on patterns depends on

a. The material of the casting

b. Size and shape of casting

c. The material of the pattern

d. The composition of moulding sand

e. Temperature of molten material

  • b. Size and shape of casting

Q. For the same capacity which of the following process has the lowest capital cost?

a. Abrasive jet machining

b. Chemical machining

c. Electron jet machining

d. Abrasive jet machining

e. Electro chemical machining

  • d. Abrasive jet machining
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