121. In order to cut mild steel, the cutting angle of chisel should be
30°
45°
50°
60°
✅ The correct answer is option D.
Workshop Technology MCQs
122. In fore-hand welding, the weld is made
from left to right
from right to left
first from left to right and then from right to left
either from left to ri
✅ The correct answer is option B.
123. In order to get uniform thickness of the plate by rolling process, one provides
camber on the rolls
offset on the rolls
hardening of the rolls
antifriction bearings
✅ The correct answer is option A.
124. Cold working of metal increases
tensile strength
yield strength
hardness
all of these
✅ The correct answer is option D.
125. Projection welding is a
continuous spot welding process
multi-spot welding process
arc welding process
process used for joini
✅ The correct answer is option B.
126. For gas welding, the presure desired at the welding torch for acetylene is
7 to 103 kN/m2
70 to 280 kN/m2
280 to 560 kN/m2
560 to 840 kN/m2
✅ The correct answer is option A.
127. The process of increasing the cross-section of a bar at the expense of its length, is called
drawing down
upsetting
spinning
peening
✅ The correct answer is option B.
128. In a cold chamber die casting machine, only non-ferrous alloys with __________ are casted.
low melting temperature
high melting temperature
✅ The correct answer is option B.
129. The temperature produced by oxy-hydrogen flame is about
1800° C
2100° C
2400° C
3200° C
✅ The correct answer is option C.
130. A pouring basin acts as a reservoir for the molten metal.
Agree
Disagree
✅ The correct answer is option A.