Top 550+ Solved Production Engineering MCQ Questions Answer
Q. Undercutting is
a. An operation of cutting deep grooves
b. None of above
c. An operation of cutting a groove next to a shoulder on a piece of work
d. An operation of cutting extra wide threads
e. Cutting from the base of a work piece
Q. The minimum section thickness for cast iron castings is
a. 10 mm
b. Parting off
c. 3 mm
d. 1 mm
e. 6 mm
Q. When large number of components are turned and parted off from a bar, the chuck used is
a. Magnetic chuck
b. Four jaw chuck
c. Collet chuck
d. Face place
e. Three jaw chuck
Q. Which of the following plate can be used for milling the sides of a hexagon nut?
a. Parting off
b. 3 hole circle plate
c. 45 hole circle plate
d. 55 hole circle plate
e. 24 hole circle plate
Q. Stub tooth are cut on gears
a. To improve transmission efficiency
b. To reduce centre distance between shafts
c. None of above
d. To reduce frictional torque
e. Subjected to shock and vibration
Q. Porosity of a welded joint may be caused by
a. Poor base metal
b. Low welding current
c. High welding current
d. Wrong size of electrode
e. None of the above
Q. Ionised material acts as transfer media in case of
a. Ion beam machining
b. Plasma arc machining
c. Electro discharge machining
d. All of the above
e. None of the above
Q. Scale sensitivity is defined as
a. Ratio of a change in scale reading to the corresponding change in pointer deflection
b. Least reading of scale/range of scale
c. Least reading of scale/unit measurable quantity
d. Least count of scale/range of scale
e. None of the above
Q. Which one does not fit with the rest in the following
a. Hammer
b. Flatter
c. Hot chiesel
d. Reamer
e. Hot punch
Q. Kerosene is used as a cutting fluid while machining
a. Magnesium
b. Low carbon steel
c. Copper
d. Brass
e. Aluminium
Q. Out of the following tools which one is expected to have highest carbon percentage
a. Crowbar
b. Ordinary file
c. Circular saw
d. Pliers
e. Wrenches
Q. For welding of non-ferrous materials which of the following is preferred?
a. Microwave frequency voltage
b. Low frequency ac
c. High frequency ac
d. Direct current
e. Induction heating
Q. As far as machinability is concerned, which of the following will be considered to be most inferior alloy?
a. Malleable cast iron
b. Parting off
c. Monel metal
d. Gun metal
e. Bearing bronze
Q. Precision is
a. The ability of a measuring device to detect small differences in a quantity being measured
b. Agreement of the result of a measurement with the true value of the measured quantity
c. The ability of an instrument to reproduce same reading under identical conditions
d. The repeatability of a measurement process
e. Error of judgment in reading on observation
Q. In centrifugal castings, the cores are generally made of
a. Green sand and molasses
b. Plastic
c. Wax
d. Cores are not used
e. Plaster of paris