Multiple Choice Question & Answer

YB WEB DESK. Dated: 2/26/2021 1:03:40 PM

Multiple Choice Questions on Production Engineering
1-Crater wear of single point cutting tool appears due to
(A) Impact
(B) Fatigue
(C) Diffusion
(D) Corrosion
2-Very accurate screw threads can be manufactured by
(A) Chasing
(B) Rolling
(C) Grinding
(D) Milling
3-Continuous chips are formed during machining when
(A) speed is low, feed is high
(B) speed is high, feed is high
(C) speed is high, feed is low
(D) speed is low, feed is low
4-When machining parameters are kept constant, tool life will
be less in
(A) end milling
(B) face milling
(C) up milling
(D) down milling
5-The correct sequence of decreasing order of Material
Removal Rate (MRR), in unconventional machining process is
(A) USM > ECM > EDM
(B) USM > EDM > ECM
(C) ECM > EDM > USM
(D) ECM > USM > EDM
6-The ratio between Iron oxide and Aluminium in Thermit is
(A) 1:2
(B) 3:1
(C) 1:3
(D) 1:1
7-In ultrasonic machining, Material Removal Rate with respect
to grain size increases in
(A) decreases and increases
(B) increases and decreases
(C) decreases
(D) increases
8-Following statement is correct for coated electrode arc welding
process.
(A) Rod only melts and material coating does not melt
(B) Rod melts first then coating material
(C) Coating melts first then rod material
(D) Both rod and flux melts simultaneously
9- For machining ductile materials, Point angle in drills are kept
low to take advantage of
(A) Lesser cutting forces
(B) Low heat developed
(C) Thicker chips
(D) Thinner chips
10-The temperature of Oxidized flame in gas welding is
(A) 3840° C
(B) 3480° C
(C) 3200° C
(D) 2900° C
11-Which of the following abrasive will be used for grinding tool
steel and high speed steel (HSS)?
(A) Boron Carbide
(B) Al2O3
(C) SiC
(D) Diamond
12-Callapsible tubes are manufactured by
(A) Impact extrusion
(B) Hydrostatic extrusion
(C) Indirect extrusion
(D) Direct extrusion
ANSWERS:
1-(D), 2-(C), 3-(C), 4-(C), 5-(C), 6-(B), 7-(B), 8-(B), 9-(D), 10-
(B), 11-(B), 12-(A)

 

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