A. adhesion
B. cohesion
C. surface tension
D. viscosity
E. compressibility
Related Mcqs:
- Rain drops are spherical because of__________________?
A. viscosity
B. air resistance
C. surface tension forces
D. atmospheric pressure
E. none of the above - Mercury does not wet glass. This is due to property of liquid known as__________________?
A. adhesion
B. cohesion
C. surface tension
D. viscosity
E. compressibility - At which pressure the properties of water and steam become identical_________________?
A. 0.1 kg/cm2
B. 1 kg/cm2
C. 100 kg/cm2
D. 225.6 kg/cm2
E. it is never possible - Equivalent evaporation is the amount of water evaporated in a boiler from and at ____________________?
A. 0°C
B. 100°C
C. saturation temperature at given pressure
D. room temperature
E. 20°C - For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has ____________________?
A. more heating surface
B. less heating surface
C. equal heating surface
D. heating surface depends on other parameters
E. none of the above - Deaeration of feed water is carried out because it reduces ____________________?
A. cavitation of .boiler feed pumps
B. corrosion caused by oxygen
C. heat transfer coefficient
D. pH value of water
E. weight of water to be handled - A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is____________________?
A. 9,000 kg
B. 13,500 kg
C. 18,000 kg
D. 27,000 kg
E. 30,000 kg - An open vessel of water is accelerated up an inclined plane. The free water surface will__________________?
A. be horizontal
B. make an angle in direction of inclination of inclined plane
C. make an angle in opposite direction to inclination of inclined plane
D. any one of above is possible
E. none of the above - The velocity of jet of water travelling out of opening in a tank filled with water is proportional to_________________?
A. head of water (h)
B. h2
C. V/T
D. h2
E. h3/1 - Specific weight of sea water is more that of pure water because it contains_________________?
A. dissolved air
B. dissolved salt
C. suspended matter
D. all of the above
E. heavy water
