______________ is an example of axial flow impeller?
______________ is an example of axial flow impeller?
A. Paddle
B. Turbine
C. Propeller
D. All A., B. and C.
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Cocks are used to control ___________________?
Cocks are used to control ___________________?A. Water
B. Any liquid
C. Solids
D. None of theseFor a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the___________________?
For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the___________________?A. Square of the radial distance
B. Radial distance linearly
C. Inverse of the radial distance
D. Elevation along vertical directionCheck in a centrifugal pump is________________?
Check in a centrifugal pump is________________?A. Provided in the discharge line
B. Generally a globe valve
C. Provided to prevent liquid from backing up through the pump when the pump is turned off or
accidently stops running
D. All A., B. and C.The line of action of the buoyant force passes through the centre of gravity of the_______________________?
The line of action of the buoyant force passes through the centre of gravity of the_______________________?A. Submerged body
B. Displaced volume of the fluid
C. Volume of fluid vertically above the body
D. Horizontal projection of the bodyA centrifugal pump loses prime after starting. The reason of this trouble may be_____________________?
A centrifugal pump loses prime after starting. The reason of this trouble may be_____________________?A. Incomplete priming
B. Too high a suction lift
C. Low available NPSH and air leaks in the suction pipe
D. All A., B., and C.The terminal velocity of a particle moving through a fluid varies as dp n. What is the value of n’ for Newton’s law regime ?
The terminal velocity of a particle moving through a fluid varies as dp n. What is the value of n’ for Newton’s law regime ?A. 0.5
B. 1
C. 1.5
D. 3