The ______________ pressure is measured by a static tube?
The ______________ pressure is measured by a static tube?
A. Dynamic
B. Static
C. Total
D. None of these
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When the water is warm, the height to which it can be lifted by a pump_________________?
When the water is warm, the height to which it can be lifted by a pump_________________?A. Decreases due to reduced viscosity
B. Decreases due to reduced vapour pressure
C. Increases due to increased vapour pressure
D. Decreases due to increased frictional resistanceThe hydraulic diameter of an annulus of inner and outer radii Ri and Ro respectively is___________________?
The hydraulic diameter of an annulus of inner and outer radii Ri and Ro respectively is___________________?A. 4(Ro-Ri)
B. √(Ro-Ri)
C. 2(Ro-Ri)
D. Ro + RiThe resistance wire used in a hot wire anemometer for conducting electrical current is made of__________________?
The resistance wire used in a hot wire anemometer for conducting electrical current is made of__________________?A. Copper
B. Tungsten
C. Chromium
D. AluminiumTransition from laminar flow to turbulent flow is aided by the__________________?
Transition from laminar flow to turbulent flow is aided by the__________________?A. Surface roughness and curvature (i.e. sharp corners)
B. Vibration
C. Pressure gradient and the compressibility of the flowing medium
D. All A., B. & C.The excess of the sum of pressure & velocity heads over the vapor pressure of the liquid at the suction is called the___________________?
The excess of the sum of pressure & velocity heads over the vapor pressure of the liquid at the suction is called the___________________?A. Static submergence
B. Net positive suction head (NPSH)
C. Cavitation sensitivity
D. PrimingThe simple Pitot tube does not measure the________________?
The simple Pitot tube does not measure the________________?A. Static pressure
B. Dynamic pressure
C. Velocity at the stagnation point
D. All A., B. and C.