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
Related Mcqs:
- In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where M = molecular weight of the gas) ?
A. 1/√M
B. √M
C. 1/M
D. M - In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where, T = absolute temperature) ?
A. 1/√T
B. 1/T
C. √T
D. T - Speed of sound in an ideal gas depends on its________________?
A. Temperature
B. Pressure
C. Specific volume
D. None of these - The speed of sound in an ideal gas varies as the __________________?
A. Temperature
B. Pressure
C. Density
D. None of these - 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 - What is the speed of sound (m/sec) in ordinary water ?
A. 1500
B. 330
C. 1000
D. 3000 - A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, the new discharge will be __________ litres/minute ?
A. 500
B. 200
C. 1000
D. 750 - A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, then the new head will be ______________ metres?
A. 2
B. 4
C. 8
D. 5.5 - A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, the power consumed now will be _____________ hp?
A. 0.5
B. 2
C. 4
D. 1 - The specific speed of a pump is defined as the speed of a unit of such a size, that it__________________?
A. Delivers unit discharge at unit head
B. Requires unit power for unit head
C. Delivers unit discharge at unit power
D. None of these
