its end tapered for about three or four threads
its end tapered for about eight or ten threads
full threads for the whole of its length
none of the above
✅ The correct answer is option C.
Production Engineering MCQs
When the metal is removed by erosion caused by rapidly recurring spark discharges between the tool and work, the process is known as
electro-chemical machining
electro-discharge machining
ultra-sonic machining
none of these
✅ The correct answer is option B.
The dressing and truing of grinding wheel are done with the same tools but not for the same purpose.
Agree
Disagree
✅ The correct answer is option A.
The specific cutting energy used for establishing the machinability of the metal depends upon its
coefficient of friction
microstructure
work hardening characteristics
all of these
✅ The correct answer is option D.
When the backgear is engaged in a backgeared headstock, the spindle speed reduces considerably.
Agree
Disagree
✅ The correct answer is option A.
The drill spindles are provided with standard taper known as
Morse taper
Seller’s taper
Chapman taper
Brown and Sharpe taper
✅ The correct answer is option A.
The angle between the lathe centres is
30°
45°
60°
90°
✅ The correct answer is option C.
Half nut is used to lock the lathe carriage to the lead screw for thread cutting.
TRUE
FALSE
✅ The correct answer is option A.
The lip clearance angle should decrease towards the centre of the drill than at the circumference.
Yes
No
✅ The correct answer is option B.
Which of the following operations can be performed with milling cutters?
cutting key ways on shafts
cutting external screw threads
cutting teeth of spur gears
all of these
✅ The correct answer is option D.