- (A) 0.1
- (B) 0.3
- (C) 0.7
- (D) 1.7
- (E) 10.5
Mechanical Engineering Mcqs
- (A) absorptive power
- (B) emissive power
- (C) absorptivity
- (D) emissivity
- (E) none of the above
- (A) nature of body
- (B) temperature of body
- (C) type of surface of body
- (D) all of the above
- (E) none of the above
- (A) at all temperatures
- (B) at one particular temperature
- (C) when system is under thermal equi-librium
- (D) at critical temperature
- (E) for a polished body
- (A) p = 0, x = 0 and a = 1
- (B) p=l,x = 0,anda = 0
- (C) p = 0, T= l,anda = 0
- (D) X = 0, a + p = 1
- (E) a = 0,x + p= 1
- (A) convection
- (B) free convection
- (C) forced convection
- (D) radiation
- (E) radiation and convection
- (A) direct mixing of hot and cold fluids
- (B) a complete separation between hot and cold fluids
- (C) flow of hot and cold fluids alternately over a surface
- (D) generation of heat again and again
- (E) indirect transfer
- (A) 3
- (B) 6
- (C) 9
- (D) 27
- (E) 81
- (A) is black in colour
- (B) reflects all heat
- (C) transmits all heat radiations
- (D) abslprbs heat radiations of all wave lengths falling on it
- (E) fully opaque
- (A) black bodies
- (B) polished bodies
- (C) all coloured bodies
- (D) all of the above
- (E) none of the above
