Mechanical Engineering MCQs

2075 MCQs  (Page 21 of 208)

Motion of a liquid in a volute casing of a centrifugal pump is an example of____________________?
A. rotational flow
B. radial
C. forced spiral vortex flow
D. forced cylindrical vortex flow
Medium specific speed of a pump implies it is_________________?
A. Centrifugal pump
B. Mixed flow pump
C. Axial flow pump
D. Any one of the above
Indicator diagram of a reciprocating pump is a graph between________________?
A. Flow vs swept volume
B. Pressure in cylinder vs swept volume
C. Flow vs speed
D. Pressure vs speed
High specific speed of turbine implies it is__________________?
A. Propeller turbine
B. Francis turbine
C. Impulse turbine
D. Any one of the above
Casting of a centrifugal pump is designed so as to minimize________________?
A. Friction loss
B. Cavitation
C. Static head
D. Loss of kinetic energy
Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between_________________?
A. Lift and resultant force
B. Drag and resultant force
C. Lift and tangential force
D. Lift and drag