hardened
tempered
hardened and tempered
case hardened
✅ The correct answer is option C.
Workshop Technology MCQs
2. 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.
3. 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.
4. The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as
hot piercing
extrusion
cold peening
cold heading
✅ The correct answer is option C.
5. An oxidising flame is obtained when equal volumes of oxygen and acetylene are supplied.
TRUE
FALSE
✅ The correct answer is option B.
6. 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.
7. The cold working of metals is carried out
at the recrystallisation temperature
below the recrystallisation temperature
above the recrystallisation temperature
at any temperature
✅ The correct answer is option B.
8. The minimum size of a bloom is
5 cm x 5 cm
10 cm x 10 cm
15 cm x 15 cm
20 cm x 20 cm
✅ The correct answer is option C.
9. In order to cut mild steel, the cutting angle of chisel should be
30°
45°
50°
60°
✅ The correct answer is option D.
10. 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.