Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'TRADESMAN SMITHY FORGING AND HEAT TREATING TECHNICAL EDUCATION' And exam conducted in the year 2015. And Question paper code was '185/2015'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
48. The steel for drop forging is heated toa ;. .,
(A) Light heat (B) “Highly plastic state
(€) Red hot (D) Liquid state
49. The hardened parts must be [ടട the hardening strains and to increase the
toughness of the paris.
{A) Tempered (B) ‘Annealed (©) Carburized (D) Anodized
50, To anneal hard steel, the steel must be heated abpve its critical temperature and then :
(A) Cooled rapidly (18 Quenched in oil
(C) Cooled slowly ' (I))Quemhedinwaier
51.I‘heabiiirv_toheaimnlalmus!rapidlym'.‘
(A)Mcller\hmh (B) Pit furnace (त) Smith forge (D) Electric furnace
52, For nitriding steel components, the following atmosphere is genetly used in the furnace :
(A) Ammonia (B) Nascent nitrogen
(09 Liquid nitrogen ^ (D) 10 ഇട
53, When a piece of high-carbon steel is heated to red hot, then plunged into cold water it will
एः
(A) Case-hardened (B) Hardened (€) Tempered (D) Normalized
54. The steel must be heated upto the __ temperature and quenched for hardening.
)۸( 04 (B) Eutectic (C) _ Critical (D) Melting
55. The operation of removing the burr of the drop forged parts is known as :
(A) Trimming (8) Blanking (C) Polishing, (D) Piercing
185/2015 8; A
