Purpose of relief valve in a reciprocating pump is to___________________?

A. Turbine
B. Propeller
C. Diffuser
D. None of these

A. That is traced by all the fluid particles passing through a given point
B. Along which a fluid particle travels
C. Such that at every point on it, the velocity is tangential to it
D. None of these

A. The line connecting the mid-points of flow cross-sections
B. Defined for uniform flow only
C. Drawn normal to the velocity vector at every point
D. Always the path of a particle

A. Surface tension
B. Fluid density
C. Fluid viscosity
D. Gravity forces

A. Prandtl number is one
B. Schmidt number tends to infinity
C. Nusselt number tends to infinity
D. Archimedes number is greater than 10000

A. Less power than
B. More power than
C. Same power as
D. Data insufficient to predict