- (A) White & rough
- (B) Black & rough
- (C) White & polished
- (D) Black & polished
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Latest MCQs
- (A) Mass diffusivity to thermal diffusivity
- (B) Momentum diffusivity to thermal diffusivity
- (C) Thermal diffusivity to mass diffusivity
- (D) Thermal diffusivity to momentum diffusivity
- (A) Nature of heating surface and distribution of bubbles
- (B) Surface tension of water
- (C) Viscosity of water
- (D) All
- (A) Admit the feed
- (B) Remove the product
- (C) Facilitate removal of non-condensable gases
- (D) Create vacuum
- (A) Increases
- (B) Decreases
- (C) Remains unchanged
- (D) Increases exponentially
- (A) Infinity
- (B) Zero
- (C) Same as average heat transfer co-efficient for tube side
- (D) None of these
- (A) Liquid density
- (B) Liquid viscosity
- (C) Hot surface temperature
- (D) Interfacial tension
- (A) Q ∝ T2
- (B) Q ∝ T4
- (C) Q ∝ T3
- (D) None of these
- (A) Aluminium foil
- (B) Refractory bricks
- (C) Iron plate
- (D) Coke breeze
- (A) Exothermic
- (B) Mildly endothermic
- (C) Highly endothermic
- (D) None of these
