Multiple Choice Questions (MCQ) on Manufacturing Processes
31-The size of three jaw chuck is specified by
(A) The diameter of the body of the chuck
(B) The thickness of each jaw
(C) The size of each jaw
(D) Width of the body of the chuck
32-Tap is used for
(A) Making round hole on a job
(B) Making internal threads
(C) Making external threads on a rod
(D) All of the above
33-Ball screw is primarily employed in feed mechanism of
(A) Capstan lathe
(B) Bench lathe
(C) CNC lathe
(D) NC lathe
34-Recommended point angle for drilling while cast iron is
(A) 118 degree
(B) 125 degree
(C) 100 degree
(D) 160 degree
35-An abrasive wheel is marked A16 P 5V BE, where 16 indicates
(A) Structures
(B) Grain size
(C) Grade of bond
(D) M code
36-Single cut files are used for cutting of
(A) Hard metal
(B) Soft metal
(C) Tempered metal
(D) Ductile metal
37-In milling, cutting speed of alloy steel with HSS cutter is
(A) 12-20 m/min
(B) 6-8 m/min
(C) 5-8 m/min
(D) 4-8 m/min
38-A final finishing operation is
(A) Lapping
(B) Filing
(C) Tumbling
(D) Honing
39-Vice-jaw fixture is generally used for machining
(A) Small job
(B) Large metal
(C) Machining the job
(D) Making the job
40-The accuracy of lathe depends on the accuracy of
(A) The carriage
(B) Compound slide
(C) Tail stock
(D) Bed ways
41-The compound rest base graduated in
(A) cm
(B) mm
(C) meter
(D) degrees
42-An angular surface is machined on a planer
(A) By fixing the job at an angle
(B) By swivelling the tool head of the planer
(C) By tilting the table of the planer
(D) None of the above
ANSWERS:
31-(A), 32-(B), 33-(C), 34-(A), 35-(B), 36-(A), 37-(A), 38-(C), 39-(A), 40-(D), 41-(D), 42-(B)