M
N
N-m
N/m
✅ The correct answer is option C.
Fluid Mechanics MCQs
A stream tube is that, which has __________ cross-section entirely bounded by stream lines.
A circular
Any convenient
A small
A large
✅ The correct answer is option B.
Two liquids manometer is used for measuring small pressure differences in
Liquids
Gases
Mixture of hydrocarbons
None of these
✅ The correct answer is option B.
Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about
0.42
0.62
0.82
0.98
✅ The correct answer is option B.
Which of the following can be used for the direct measurement of volumetric flow rate of slurry?
Venturimeter
Orificemeter
Rotameter
Pitot tube
✅ The correct answer is option C.
Slurries can be most conveniently pumped by a __________ pump.
Screw
Reciprocating
Gear
Centrifugal
✅ The correct answer is option D.
In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where M = molecular weight of the gas)
1/√M
√M
1/M
M
✅ The correct answer is option A.
The excess of the sum of pressure & velocity heads over the vapor pressure of the liquid at the suction is called the
Static submergence
Net positive suction head (NPSH)
Cavitation sensitivity
Priming
✅ The correct answer is option B.
The dimension of kinematic viscosity is
ML⁻²T⁻¹
L²T⁻¹
ML⁻²T⁻²
None of these
✅ The correct answer is option B.
Potential flow is the flow of
Compressible fluids with shear
Compressible fluids with no shear
Incompressible fluids with shear
Incompressible fluids with no shear
✅ The correct answer is option D.