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
Fluid Mechanics for Chemical
In the laminar boundary layer flow over a flat plate, the ratio (δ/x) varies as: (where, ‘δ’ is the boundary layer thickness and ‘x’ is the distance from the leading edge in the direction of flow)?
In the laminar boundary layer flow over a flat plate, the ratio (δ/x) varies as: (where, ‘δ’ is the boundary layer thickness and ‘x’ is the distance from the leading edge in the direction of flow)?
A. Re
B. √Re
C. 1/Re
D. Re-1/2
An ideal nozzle design aims at________________?
An ideal nozzle design aims at________________?
A. Minimising wall friction
B. Suppressing boundary layer separation
C. Both A. & B.
D. Neither A. nor B.
One horsepower is equal to________________?
One horsepower is equal to________________?
A. 550 lbf.ft/second
B. 550 kgf.m/second
C. Both A. and B.
D. 550 lbf.ft./hr
In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where, T = absolute temperature) ?
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
With increase in the ratio of orifice diameter to pipe diameter, the fraction of the orifice pressure differential that is permanently lost________________?
With increase in the ratio of orifice diameter to pipe diameter, the fraction of the orifice pressure differential that is permanently lost________________?
A. Increases
B. Decreases
C. Remains unchanged
D. Increases exponentially
Acceleration head in a reciprocating pump_______________________?
Acceleration head in a reciprocating pump_______________________?
A. Increases the work done during delivery stroke
B. Decreases the work done during suction stroke
C. Does not change the work requirement of the pump
D. Increases the work done during suction stroke
In case of a ____________ the energy of flow is considerably decreased downstream of the machine?
In case of a ____________ the energy of flow is considerably decreased downstream of the machine?
A. Blower
B. Turbine
C. Centrifugal pump
D. Centrifugal fan
The normal stress is the same in all directions at a point in a fluid, when the fluid is__________________?
The normal stress is the same in all directions at a point in a fluid, when the fluid is__________________?
A. Non-viscous
B. Incompressible
C. Both A. and B.
D. Having no motion of one fluid layer relative to the other
A pipe is defined as ‘hydraulically smooth’, if the friction factor_________________?
A pipe is defined as ‘hydraulically smooth’, if the friction factor_________________?
A. Is not a function of Reynolds number
B. For a given Reynolds number remains constant even on further smoothening of the pipe
C. Is zero irrespective of the Reynolds number
D. None of these