- (A) Intensifies deterioration
- (B) Changes the composition of the metal
- (C) Inhibits further deterioration
- (D) None of these
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- (A) Machinability
- (B) Toughness
- (C) Internal stress level
- (D) Softness
- (A) (r2 – r1)/r1. r2
- (B) r1. r2/(r2 – r1)
- (C) (r2 + r1)/r1. r2
- (D) r1. r2/(r2 + r1)
- (A) A high temperature neutral gas
- (B) Nothing but ionised gas
- (C) A source of steady and highest controllable pressure
- (D) Formed at very low temperature
- (A) Conductor
- (B) Insulator
- (C) Semi-conductor
- (D) None of these
- (A) Wrought
- (B) Tool
- (C) Alloy
- (D) Plain carbon
- (A) Ore
- (B) Electrical power
- (C) Labour
- (D) Abundant water
- (A) Blow off cock
- (B) Feed check valve
- (C) Feed water pump
- (D) Stop valve
- (A) 30°
- (B) 60°
- (C) 90°
- (D) 120°
- (A) Same crystalline structure
- (B) Same valency
- (C) Widely differing electronegativity
- (D) Same atomic sizes
