diamond is very hard and wear resistant
it occupies very little space
it helps in assembly with tolerance on centre distance
it has a long life
✅ The correct answer is option C.
Production Engineering MCQs
Slow speed of the spindle is necessary in
thread cutting
turning a work of larger diameter
turning a hard or tough material
all of these
✅ The correct answer is option D.
The average cutting speed for turning mild steel with a high speed steel tool is
15 to 19 m/min
25 to 31 m/min
60 to 90 m/min
90 to 120 m/min
✅ The correct answer is option B.
In gear hobbing
only hob rotates
only gear blank rotates
both hob and gear blank rotates
neither hob nor gear b
✅ The correct answer is option C.
In a milling operation, two side milling cutters are mounted with a desired distance between them so that both sides of a workpiece can be milled simultaneously. This set up is called
gang milling
straddle milling
string milling
side milling
✅ The correct answer is option B.
The purpose of jigs and fixtures is to
increase machining accuracy
facilitate interchangeability
decrease expenditure on quality control
all of these
✅ The correct answer is option D.
The chamfering is an essential operation after
knurling
rough turning
boring
thread cutting
✅ The correct answer is option D.
The tailstock set over required to turn a taper on the entire length of a workpiece having diameters D and d is
D – d
✅ The correct answer is option C.
The part of the tool on which cutting edge is formed is called nose.
Correct
Incorrect
✅ The correct answer is option B.
In drilling softer materials, the cutting speed is __________ as compared to harder materials.
same
low
high
✅ The correct answer is option C.