Workshop Technology MCQs

111. A neutral flame is obtained by supplying

equal volumes of oxygen and acetylene
more volume of oxygen and less volume of acetylene
more volume of acetylene and less volume of oxygen
none of the above
✅ The correct answer is option A.

114. The advantage of thermit welding is that

all parts of the weld section are molten at the same time
weld cools almost uniformly
results in a minimum problem with internal residual stresses
all of the above
✅ The correct answer is option D.

115. The upsetting is a process of

increasing the cross-section of a bar
reducing the cross-section of a bar
joining the two surfaces of metal under pressure after heating
bending of a bar
✅ The correct answer is option A.

118. Scribing block is used to

hold the round bars during marking
check the trueness of flat surfaces
locate the centres of round bars
check the surface roug
✅ The correct answer is option C.
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