A. Vacuum as well as the atmospheric
B. Difference in
C. Absolute
D. Gage
Related Mcqs:
- Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is _____________ mm?
A. 4
C. > 12.5
D. < 10 - The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which “sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis”. The centre of pressure of a rectangular surface (of width ‘w’) immersed vertically in a static mass of fluid is at a depth of (where, y = depth of the liquid) ?
A. 1/(y/3)
B. 2y/3
C. 1/(y/4)
D. 3y/4 - The pressure co-efficient is the ratio of pressure forces to ______________ forces?
A. Viscous
B. Inertial
C. Gravity
D. Surface tension - In centrifugal pump operation, the cavitation can be eliminated by maintaining suction pressure ______________ the vapor pressure of the liquid at the suction temperature?
A. Lower than
B. Higher than
C. Equal to
D. None of these - Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of ______________ pressure?
A. Small differential
B. Atmospheric
C. Absolute
D. Gage - The pitot static tube does not measure the _____________ pressure?
A. Static
B. Total
C. Difference in static & dynamic
D. All A., B. and C. - Pressure co-efficient is the ratio of pressure forces to __________________________ forces?
A. Gravity
B. Inertial
C. Viscous
D. None of these - In which of the following cases, it is possible for flow to occur from low pressure to high pressure ?
A. Flow of liquid upward in a vertical pipe
B. Flow through a converging section
C. Flow of air downward in a pipe
D. Impossible in a constant cross-section conduit - The excess of the sum of pressure & velocity heads over the vapor pressure of the liquid at the suction is called the___________________?
A. Static submergence
B. Net positive suction head (NPSH)
C. Cavitation sensitivity
D. Priming - Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water column in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm)?
A. H
B. 12.6 H
C. 13.6 H
D. 14.6 H
