261. The instrument which has all the features of try-square, bevel protractor, rule and scriber, is
[A]. outside micrometer
[B]. inside micrometer
[C]. depth gauge micrometer
[D]. combination set
✅ The correct answer is option D.
Workshop Technology MCQs
262. The draft or taper allowance on casting is generally
[A]. 1 to 2 mm/m
[B]. 2 to 5 mm/m
[C]. 5 to 10 mm/m
[D]. 10 to 15 mm/m
✅ The correct answer is option A.
263. When a pattern is made in three parts, the bottom part is known as a cope.
[A]. True
[B]. False
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✅ The correct answer is option B.
264. In a four high rolling mill, there are four rolls out of which
[A]. one is working roll and three are backing up rolls
[B]. two are working rolls and two are backing up rolls
[C]. three are working rolls and one is backing up roll
[D]. all of the four are working rolls
✅ The correct answer is option B.
265. The chisel used for cutting key ways is
[A]. flat chisel
[B]. cape chisel
[C]. round nose chisel
[D]. diamond pointed chisel
✅ The correct answer is option B.
266. In a hot chamber die casting machine
[A]. ferrous alloys with low melting temperature are casted
[B]. ferrous alloys with high melting temperature are casted
[C]. non-ferrous alloys with low melting temperature are casted
[D]. non-ferrous alloys with high melting temperature are casted
✅ The correct answer is option C.
267. Blanking and piercing operations can be performed simultaneously in a
[A]. simple die
[B]. progressive die
[C]. compound die
[D]. combination die
✅ The correct answer is option C.
268. A pattern maker’s shrinkage rule considers
[A]. all pattern allowances
[B]. only shrinkage allowance
[C]. all materials to be cast
[D]. all materials of the pattern
✅ The correct answer is option B.
269. The tolerance produced by shell moulding process of casting is
[A]. +0.05 mm
[B]. ±0.2 mm
[C]. +0.5 mm
[D]. ±1 mm
✅ The correct answer is option B.
270. The ferrous metals require more machining allowance than non-ferrous metals.
[A]. True
[B]. False
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✅ The correct answer is option A.