- (A) √d
- (B) d
- (C) d2
- (D) d1.5
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- (A) Maximum resistance in the series
- (B) Sum of all resistances
- (C) Average of all resistances
- (D) Minimum resistance presents in the series
- (A) 0.5
- (B) 1
- (C) > 2
- (D) 1.5
- (A) Thin walled having the value of Ao Ai/< 2
- (B) Thick walled
- (C) Having the value of Ao/Ai > 2
- (D) Both
- (A) Black
- (B) White lead
- (C) Grey
- (D) Light cream
- (A) Increases
- (B) Decreases
- (C) Remain constant
- (D) Passes through a maxima
- (A) Radiation
- (B) Natural convection
- (C) Forced convection
- (D) Conduction
- (A) Condense steam
- (B) Release excess steam pressure by bleeding steam
- (C) Remove condensate and inert gases
- (D) None of these
- (A) Heat transfer co-efficient over the entire heat exchanger is not constant
- (B) There exists an unsteady state
- (C) The heat capacity is not constant and there is a phase change
- (D) None of these
- (A) Minimum
- (B) Maximum
- (C) Zero
- (D) Infinity
