- (A) Thermal conductivity
- (B) Thickness
- (C) Temperature difference
- (D) Heat transfer area
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- (A) Increase
- (B) Decrease
- (C) Remain unchanged
- (D) Either increase or decrease; depends on the coolant flow rate
- (A) Planck’s law
- (B) Kirchhoff’s law
- (C) Wien’s law
- (D) Stefan-Boltzmann law
- (A) 1 and 0
- (B) 0 and 1
- (C) 1 and ∞
- (D) 0 and 0.5
- (A) Abundance & high heat capacity
- (B) Low density
- (C) Low viscosity
- (D) High fluidity
- (A) Black
- (B) White
- (C) Grey
- (D) Any colour
- (A) 1 kcal/hr. m2°C
- (B) 4.88 kcal/hr. m.2°C
- (C) 1 kcal/hr. m2.°K
- (D) None of these
- (A) Arithmetic
- (B) Logarithmic
- (C) Geometric
- (D) Either
- (A) Tube layout
- (B) Tube diameter
- (C) Tube pitch
- (D) Number of baffles
- (A) Parallel
- (B) Mixed
- (C) Counter flow
- (D) Same in either A ,
