381. The rake angle required to machine brass by high speed steel tool is
0°
10°
20°
-10°
✅ The correct answer is option A.
Production Engineering MCQs
382. A fine grained grinding wheel is used to grind hard materials.
Correct
Incorrect
✅ The correct answer is option A.
383. The work or surface speed for cylindrical grinding varies from
5 to 10 m/min
10 to 20 m/min
20 to 30 m/min
40 to 60 m/min
✅ The correct answer is option C.
384. The lip angle of a single point tool is usually
20° to 40°
40° to 60°
60° to 80°
none of these
✅ The correct answer is option C.
385. In hot machining, tool is made of
tungsten carbide
brass or copper
diamond
stainless steel
✅ The correct answer is option A.
386. Grinding wheels should be tested for balance
only at the time of manufacture
before starting the grinding operation
at the end of grinding operation
occasionally
✅ The correct answer is option D.
387. The machining of titanium is difficult due to
high thermal conductivity of titanium
chemical reaction between tool and work
low tool-chip contact area
none of these
✅ The correct answer is option C.
388. The cutting tool in a milling machine is mounted on
spindle
arbor
column
knee
✅ The correct answer is option B.
389. Side rake angle on tools is provided to control chip flow.
TRUE
FALSE
✅ The correct answer is option A.
390. The velocity of tool relative to the workpiece is known as cutting velocity.
TRUE
FALSE
✅ The correct answer is option A.