With the increase in depth, the hydrostatic pressure in an un-accelerated incompressible fluid (in a constant gravitational field) ?

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Potential flow is characterised by the___________________?

A. Irrotational and frictionless flow B. Irrotational and frictional flow C. One in which dissipation of mechanical energy into heat occurs D. Formation of eddies within the stream...

The speed of a sound wave in a gas is analogous to the speed of ______________________?

A. An elementary wave in an open channel B. Flow in an open channel C. A disturbance travelling upstream in moving fluid D. None of these...

Pressure co-efficient is the ratio of pressure forces to __________________________ forces?

A. Gravity B. Inertial C. Viscous D. None of these...

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 pressure and power requirement of a gas fan at constant speed & capacity varies ____________ the gas density?

A. Directly as B. Inversely as square root of C. Inversely as D. As square of...