Top 550+ Solved Production Engineering MCQ Questions Answer
Q. Plain and butt welds may be used on materials upto approximately
a. 100 mm thick
b. 75 mm thick
c. 50 mm thick
d. 40 mm thick
e. 25 mm thick
Q. Greater proportion of heat in a cutting operation is produced in the region of
a. tool-chip interface
b. shearing plane of chip
c. tool and work piece contact
d. None of the above
e. Parting off
Q. The function of a chip breaker in a cutting tool is
a. To provide smooth path for long chips
b. To get long curled chips
c. To break the chips into short segrments
d. To remove chips from bed
e. None of the above
Q. Continuous chips in ductile metals is promoted by
a. Small rake angle
b. Reduce the wall thickness and increase the diameter of tubes already made
c. Low cutting speed
d. Insufficient cooling
e. Rine feed
Q. A stub tooth is one that is
a. Thicker in proportion to its length than involute tooth
b. Smaller in proportion to its length than the involute tooth
c. None of these
d. Vernier caliper
e. Same as involute tooth
Q. Gear tooth vernier is used to measure
a. Pitch line thickness of gear tooth
b. Addendum and dedendum
c. Gear tooth thickness
d. Module
e. Gear tooth profile
Q. The moisture content of wood used for patterns should be
a. More than 25%
b. Zero
c. More than 20%
d. Less than 15%
e. 1%
Q. The coefficient of friction between chip and tool is the variable. It can be reduced by
a. Reducing the width of tool
b. Reducing the depth of cut
c. Reducing the effective rake angle
d. None of these
e. None of the above
Q. A collimated light beam is used for producing heat in
a. Percussion welding
b. TIG welding
c. Plasma welding
d. MIG welding
e. Laser welding
Q. A time switch is
a. A switch which operates for a fixed time only
b. A switch which gets energised with time
c. A 24 hour timing device used to open and close electric circuits according to time of day on a continually repeating schedule
d. A switch with records timings of operation of a circuit
e. None of the above
Q. In instrumentation a correction is
a. Reading-error
b. Range of error-degree of correctness
c. The revision applied to the indicated value so that the final result obtained improves the worth of the result
d. Lowest value of input which does not indicate the result
e. An error
Q. A 12 mm drilling machine means
a. It can drill holes in 12 mm thick plates
b. It can drill holes maximum 12 mm in diameter
c. It can be used for crilling holes having cross-sectional area of 12 sq mm
d. All of the above
e. None of the above
Q. A sprue is
a. A process of cleaning castings
b. A chemical added to molten materials to get sound castings
c. A tool used in mould repairing
d. A special type of non-ferrous core used in centrifugal castings only
e. A vertical passage through the cope and connecting the pouring basin to the runner or gate
Q. Which one of the following methods is generally not used in welding of chromium molybdenum steels
a. 100 mm thick
b. Thermit
c. Submerged arc
d. Oxyacetylene
e. Resistance
Q. Which of the following is the most rapid quenching medium?
a. Solution of caustic soda
b. High flash point oil
c. Parting off
d. Air
e. Water