A. Increasing its cross-sectional area of flow
B. Passing it through a pressure reducing valve
C. Forcing it downwards through a vertical tube
D. None of these
Related Mcqs:
- Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam will be_________________?
A. Wet
B. Saturated
C. Superheated
D. None of these - Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which _____________ with increase in the pressure of steam?
A. Decreases
B. Increases
C. Remain same
D. May increase or decrease - Super heating of steam is done at constant___________________?
A. Enthalpy
B. Entropy
C. Pressure
D. Volume - Dryness fraction of dry steam is_________________?
A. 0
B. ∞
C. 1
D. 0.5 - . The effect of friction on the flow of steam through a nozzle is to decrease the _______________ of steam?
A. Wetness
B. Mass flow rate
C. Both A & B
D. Neither A nor B - Larger length & diameter water pipes are made by____________________?
A. Electrical resistance welding
B. Die casting
C. Semi-centrifugal casting
D. Continuous casting - A jet engine turbine blade is normally manufactured by____________________?
A. Forging
B. Shell moulding
C. Investment casting
D. Pressure die casting - In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is ?
A. Less
B. More
C. Equal
D. Unpredictable - Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________________ kJ ?
A. +4000
B. -4000
C. 10000
D. -10000 - Regeneration of molecular sieve requires it to be heated to a temperature of about __________________ °C?
A. 80-120
B. 200-300
C. 600-800
D. 1000-1100
