Top 550+ Solved Production Engineering MCQ Questions Answer
Q. The surface accuracy of slip gauges is of the order of
a. 0.02
b. 0.0002
c. 0.002
d. 0.2
e. 0.00002
Q. Inside and outside diameters of a thin tube are to be measured. Only one of the following tools is to be selected. Which one would you choose?
a. Outside caliper
b. Odd-leg caliper
c. Inside caliper
d. Trammel
e. Vernier caliper
Q. The process for producing smooth surfaces by plastically moving away the raised micro-irregularities on the surface and passing it into the microcavities is known as
a. Buffing
b. Super finishing
c. Burnishing
d. Tumbling
e. Polishing
Q. In machine tools normally spindle speeds vary in
a. Arithmetical progression
b. Geometrical progression
c. Exponential progression
d. Logarithmic progression
e. None of the above
Q. The length of a hacksaw blade is measured from
a. Centre of hole at one end to the centre of hole at the other end
b. None of these
c. The formula L = 16 x width
d. Extreme one to-extreme end
e. 1830 rpm
Q. The usual ratio of forward and return stroke in shaper is
a. 2 ; 3
b. 3 ; 2
c. 4 ; 3
d. 1 ; 2
e. 3 ; 4
Q. The machining allowance provided on pattern depends on
a. The casting orientation
b. Size and shape of casting
c. Degree of accuracy required
d. All of the above
e. None of above
Q. Cutting speed in turning operations is maximum in case of
a. Cast iron
b. Mild steel
c. Aluminium
d. Bronze
e. Brass
Q. Which of the following is dead soft steel?
a. Parting off
b. C 45
c. 11 Mn 2
d. C 04
e. 33 Mo 55.
Q. As per ISS a steel specified as T 75 W 18 Co 10 Cr 4V2 will not have (as constituent)
a. Cobalt
b. Chromium
c. Vanadium
d. Electrical stampings
e. Copper
Q. The limitation of electronically operated automatic control system is
a. Considerable time lag
b. Poor accuracy
c. Complicated control response
d. It requires eloborate protection in hazardous locations
e. Serious effect of ambient conduction
Q. The equal percentage characteristic of a valve is
a. Uniform flow rate
b. Flow rate proportional to valve lift
c. Each increment of plug movement produces a change in flow which is proportional to the amount flowing before the change occurred
d. Percentage increase in flow is equal to the percentage increase in lift
e. The flow rate before the plug movement is equal to the flow rate after the movement
Q. Mould washes are used to produce
a. castings with different hardnesses at different locations
b. smooth surface on castings
c. castings with symmetrical sections
d. None of the above
e. Parting off
Q. Two 20 mm thick plates are to be gas welded. What size of welding rod should be selected out of the following rods available?
a. 6 mm
b. 4.5 mm
c. 1.5 mm
d. 8 mm
e. 3 mm