composite and full depth involute system
20° full depth involute system
20° stub system
none of the above
✅ The correct answer is option C.
Mechanical Engineering MCQs
In machining cast iron, no cutting fluid is required.
Correct
Incorrect
✅ The correct answer is option A.
Thread grinding requires work speed from
1 to 3 m/min
5 to 10 m/min
10 to 14 m/min
14 to 20 m/min
✅ The correct answer is option A.
Which of the following are vector quantities?
Linear displacement
Linear velocity
Linear acceleration
all of these
✅ The correct answer is option D.
In a saturated air-water vapour mixture, the
dry bulb temperature is higher than wet bulb temperature
dew point temperature is lower than wet bulb temperature
dry bulb, wet bulb and dew point temperature are same
dry bulb temperature i
✅ The correct answer is option C.
A nozzle placed at the end of a water pipe line discharges water at a
low pressure
high pressure
low velocity
high velocity
✅ The correct answer is option D.
Shaft coupling is used in machinery to
introduce mechanical flexibility
introduce protection against over loads
reduce the transmission of shock loads
all of these
✅ The correct answer is option D.
Holes are machined by push broaches only for sizing.
Correct
Incorrect
✅ The correct answer is option A.
In fire tube boilers
water passes through the tubes which are surrounded by flames and hot gases
the flames and hot gases pass through the tubes which are surrounded by water
forced circulation takes place
none of these
✅ The correct answer is option B.
The velocity ratio of a single purchase crab winch can be increased by
increasing the length of the handle
increasing the radius of the load drum
increasing the number of teeth of the pinion
all of the above
✅ The correct answer is option A.