1. . The branch of physics dealing with the wetness or dryness of air is called:
(A) Temperature
(B) Hygrometry
(C) Heat
(D) Humidity
2. . The presence of water vapours in atmosphere is called:
(A) Heat
(B) Temperature
(C) Hydrometry
(D) Humidity
3. . The pressure exerted by the vapours is called:
(A) Hygrometer
(B) Humidity
(C) Vapour pressure
(D) All of these
4. . The unit of density is:
(A) kg/m³
(B) kg/m²
(C) kg/m
(D) kg/m⁻³
5. . The unit of specific gravity:
(A) Unit of heat of fusion
(B) Unit of heat of vaporization
(C) Unit of latent heat
(D) None
6. . Relative density is more easily and more accurately measured without measuring …………
(A) Temperature
(B) Volume
(C) Both a and b
(D) None
7. . Hydraulic press is the application of:
(A) Pascal’s law
(B) Archimedes principle
(C) Law of conservation of energy
(D) Stokes law
8. . No of methods for measurement of relative density of liquids:
(A) 3
(B) 4
(C) 2
(D) 5