- (A) pulverising coal in inert atmosphere
- (B) heating wood in a limited supply of air at temperatures below 300GC
- (C) strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
- (D) binding the pulverised coal into brick-etts
- (E) enriching carbon in the coal
Mechanical Engineering Mcqs
- (A) 225.65 kgf/cm2
- (B) 273 kgf/cm2
- (C) 100 kgf/cm2
- (D) 1 kgf/cm2
- (E) – 1 kgf/cm2
- (A) melting point rises slightly and boiling point drops markedly
- (B) melting point rises markedly and boiling point drops markedly
- (C) melting point drops slightly and boiling point drops markedly
- (D) melting point drops slightly and boiling point drops slightly
- (E) none of the above
- (A) linearly
- (B) rapidly first and then slowly
- (C) slowly first and then rapidly
- (D) inversely
- (E) none of the above
- (A) constant volume
- (B) constant temperature
- (C) constant pressure
- (D) constant entropy
- (E) constant enthaply
- (A) air present in atmosphere at NTP conditions
- (B) air required for complete combustion of fuel with no excess air
- (C) air required for optimum combustion so as to have reasonable excess air
- (D) air required to convert CO into C02
- (E) air required to form an explosive mixture
- (A) 0.1 to 0.2 kg
- (B) 0.2 to 0.4 kg
- (C) 0.6 to 0.8 kg
- (D) 1.0 to 1.5 kg
- (E) 1.5 to 2 kg
- (A) linearly
- (B) slowly first and then rapidly
- (C) rapidly first and then slowly
- (D) inversely
- (E) none of the above
- (A) Ps-Pa
- (B) pa-ps
- (C) Pa+P
- (D) non of these
- (A) heat transfer takes place
- (B) work is done by the expanding steam
- (C) internal energy of steam changes
- (D) all of the above
- (E) none of the above
