- (A) Is not the same as baffle pitch
- (B) Should be less than one fifth the diameter of the shell
- (C) Should be less than the inside diameter of the shell
- (D) None of these
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- (A) ∝ t
- (B) ∝ 1/t
- (C) ∝ √t
- (D) Independent of ‘t’
- (A) Avoid buckling of tubes
- (B) Provide support for tubes
- (C) Decrease the pressure drop
- (D) Facilitate its lengthening, if needed
- (A) Alcohol
- (B) Distilled water
- (C) Salt
- (D) Fruits jam
- (A) Its evaporation loss
- (B) Excessive corrosion
- (C) Uneconomic LMTD
- (D) Decrease in heat exchanger efficiency
- (A) Stefan-Boltzmann’s
- (B) Planck’s
- (C) Wien’s displacement
- (D) None of these
- (A) Low density
- (B) High viscosity
- (C) Partial ionisation
- (D) Dense structure
- (A) Transient heat conduction
- (B) Natural convection
- (C) Forced convection
- (D) Radiation
- (A) Absorbs
- (B) Reflects
- (C) Transmits
- (D) None of these
- (A) Increases rapidly with temperature rise
- (B) Is almost independent of temperature
- (C) Is almost independent of pressure
- (D) Both
