931. The ratio of the volume of voids to the total volume of the given soil mass, is known
A. porosity
B. specific gravity
C. void ratio
D. water content.

932. The pressure less than atmospheric pressure, is known
A. suction pressure
B. vacuum pressure
C. negative gauge pressure
D. all the above.

933. Gauge pressure is
A. absolute pressure ? atmospheric pressure
B. absolute pressure + atmospheric pressure
C. atmospheric pressure ? absolute pressure
D. none of these.

934. Atmospheric pressure varies with
A. altitude
B. temperature
C. weather conditions
D. none of these.

935. Mercury is generally used in barometers because
A. its vaour pressure is practically zero
B. the height of the barometer will be less
C. it is a best liquid
D. both (a) and (b) above

936. To avoid the force of surface tension in an inclined manometer, the minimum angle of inclination is
A. 2?
B. 3?
C., 4?
D. 5?.

937. The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if
A. area is horizontal
B. area is vertical
C. area is inclined
D. all the above.

938. The centre of pressure of a vertical plane immersed in a liquid is at
A. centre of higher edge
B. centre of lower edge
C. centroid of the area
D. none of these.

939. The ratio of the weight of water to the weight of solids in a given mass of soil, is known
A. porosity
B. specific gravity
C. void ratio
D. water content.

940. The ratio of the weight of given volume of soil solids to the weight of an equal volume of distilled water at the given temperature, is known
A. porosity
B. specific gravity
C. void ratio
D. water content.

NOTE
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