Top 550+ Solved Production Engineering MCQ Questions Answer
Q. The riser in a mould should be located in such a way so that
a. it touches all parts of the casting
b. it is first to receive the molten metal
c. Parting off
d. it is last to solidify
e. it is first to solidify
Q. In a drilling operation
a. Torque is equal to the axial force
b. Torque is more than the axial force
c. None of above
d. Torque is half the axial force
e. Torque is less than the axial force
Q. Poor fusion in a welded joint may be due to
a. Lack of flux
b. Improper current
c. High welding speed
d. Dirty metal surface
e. None of the above
Q. Merchant's machinability constant is
a. 2 ? - ? - ?
b. 500 tons to 1000 tons
c. 2 ? - ? + ?
d. ? + ? - ?
e. 2 ? + ? - ?
Q. Type of gears used in electric switch gear is
a. Bevel gears
b. Herringbone gears
c. Gears are not used in switch gear
d. Helical gears
e. Spiral gears
Q. Which of the following method cannot be used for manufacturifng internal gears?
a. Die casting
b. Broaching
c. Casting
d. Hobbing
e. Stamping
Q. Which of the following is an accessory for lathe?
a. Head stock
b. Lead screw
c. Steady rest
d. Tool post
e. Tail stock
Q. The size of a lathe is expressed by
a. Height of centres from ground
b. Swing of lathe
c. Maximum speed of chuck
d. Gross weight of lathe
e. Diameter of chuck
Q. During oxyacetylene flame cutting, the metal is cut due to
a. Reduction process
b. Molecular transfer
c. Intensive oxidation
d. Evaporation of metal
e. Burning of metal
Q. If a drill does not cut; the probable cause would be
a. Drill blunt
b. Material difficult to drill
c. Speed low
d. Absence of coolant
e. None of the above
Q. Which of the following defect in castings may develop due to inadequate venting?
a. Misruns
b. Blow holes
c. Cold shuts
d. Parting off
e. Inclusions
Q. The relief angle for high speed steel tools is usually
a. 30? to 60?
b. 1? to 3?
c. 16? to 30?
d. 3? to 10?
e. 11? to 15?
Q. The fact that how closely the instrument reading follows the measured variables is termed as
a. Threshold sensitivity
b. Fidelity
c. Precision
d. Accuracy
e. Hysteresis
Q. The averge cutting speed for machining mild steel by high speed steel tool is
a. 30 m/min
b. 50 m/min
c. 20 m/min
d. 10 m/min
e. 40 m/min
Q. In metal cutting operations continuous chips are produced while machining
a. Brittle materials
b. Ductile materials
c. Hard materials
d. Soft materials
e. None of the above