A. Fluid to that of the light
B. Light to that of the fluid
C. Fluid to that of the sound
D. Sound to that of the fluid
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Related Mcqs:
- Mach number is defined as the ratio of the local flow velocity to the sonic velocity in the fluid. For what value of Mach number, the gases are considered incompressible ?
A. < 0.3
B. > 3
C. 50
D. 1 - The Mach number for hypersonic flow of compressible fluid is____________________?
A. 1
B. > 1
C. > 4
D. < 2 - Upto what value of ‘Mach number’, a fluid may be considered as incompressible ?
A. 0.03
B. 0.3
C. 3
D. 10 - In case of supersonic flow of a fluid through pipeline, the ‘Mach number’ is__________________?
A. 0
B. 1
C. < 1
D. > 1 - Mach number is important in a fluid flow problem, when the inertia and _____________ forces predominate?
A. Elastic
B. Viscous
C. Gravity
D. None of these - For ideally incompressible fluid, the Mach number will be __________________?
A. 1.5
B. 1
C. 0
D. 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 new discharge will be __________ litres/minute ?
A. 500
B. 200
C. 1000
D. 750 - 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 - 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
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