231. In a centrifugal casting method, the impurities are collected in the centre of the casting.
Yes
No
✅ The correct answer is option A.
Workshop Technology MCQs
232. In welding copper alloys with TIG arc welding
direct current with straight polarity is used
direct current with reversed polarity is used
alternating current is used
any one of these
✅ The correct answer is option A.
233. In average work, the tolerance produced by investment casting method is
±0.05 mm
+0.2 mm
+05 mm
+1 mm
✅ The correct answer is option A.
234. A plug gauge is used to check the diameter of shafts and studs.
Correct
Incorrect
✅ The correct answer is option B.
235. The machining allowance provided on patterns depends upon
type of casting metal
size and shape of casting
method of casting used
all of these
✅ The correct answer is option D.
236. The algebraic difference between the minimum limit and the basic size is called
actual deviation
upper deviation
lower deviation
fundamental deviation
✅ The correct answer is option C.
237. The fullers are used
for finishing flat surfaces
for necking down a piece of work
for punching a hole
to finish the punched hole
✅ The correct answer is option B.
238. When a hole or cavity to be cored is not in line with the parting surface, then a __________ is used.
horizontal core
vertical core
drop core
balanced core
✅ The correct answer is option C.
239. In a bilateral system of tolerance, the tolerance is allowed on
one side of the actual size
one side of the nominal size
both sides of the actual size
both sides of the nominal size
✅ The correct answer is option D.
240. In submerged arc welding, an arc is produced between a
carbon electrode and the work
metal electrode and the work
bare metal electrode and the work
two tungsten electrodes and the work
✅ The correct answer is option C.