Top 550+ Solved Production Engineering MCQ Questions Answer
Q. Drills are usually made of
a. Diamonds
b. Carbon steel
c. High speed steel
d. Carbides
e. High carbon steel
Q. In order to lower the cutting forces and also to decrease the cutting wear, alloying element generally added to steel for free machining is
a. Lead
b. Chromium
c. Manganese
d. Sulphur
e. Aluminium
Q. Tumber gears are used on lathes to
a. Reduce lead screw speeds
b. Provide automatic motion to cross-slide
c. Provide desired direction of motion to lathe carriage
d. None of the above
e. Ruby
Q. Gun metal is an alloy containing
a. Copper, lead, tin
b. Copper, nickel, silver
c. Copper, zinc, silver
d. Copper, tin, zinc
e. Copper, tin, silver
Q. A drilling machine has spindle speeds from 70 to 800 rpm in eight steps. The fourth speed from the lowest will be
a. 245 rpm
b. 340 rpm
c. 175 rpm
d. 300 rpm
e. 198 rpm
Q. A 20 mm diameter international metric thread will have a pitch of
a. 1.25 mm
b. 1 mm
c. 2.5 mm
d. 1.50 mm
e. 2.0 mm
Q. The angular clearance provided on dies is usually
a. 7? to 9?
c. 5? to 7?
d. 3? to 5?
e. 10? to 15?
Q. Last element in the tool signature is
a. nose radius
b. side cutting edge angel
c. side rake angle
d. side relief angle
e. Parting off
Q. In case of cast iron castings, the shrinkage allowance is
a. 7-10 mm/M
b. 0.1-0.01 mm/M
c. 1-0.1 mm/M
d. 50-75 mm/M
e. 75-100 mm/M
Q. With increasing cutting velocity total time for machining a component
a. decreases
b. increases
c. first decreases and then increases
d. None of the above
e. All of the above
Q. Which of the following is a multispot welding process?
a. Projection welding
b. Percussion welding
c. Atomic hydrogen welding
d. Thermit welding
e. Seam welding
Q. Which of the following welding process uses consumable electrodes
a. TIG welding
b. MIG welding
c. Thermit welding
d. Gas welding
e. Laser welding
Q. An important factor to be taken into account while designing a core print is
a. Pouring temperature
b. Buoyancy effect of molten material
c. Type of mould
d. Pattern material
e. Moulding sand characteristics
Q. Hobbing process cannot be used to cut
a. Spur gears
b. Helical gears
c. Worm gears
d. Bevel gears
e. All of the above