The nominal size of a hose pipe is specified by its _________________?

A. A storage device and a control valve
B. A cylinder and a plunger
C. Two pistons and two cylinders
D. A storage tank and a ram pump

A. Speed
B. Impeller diameter
C. Both A. and B.
D. Neither A. nor B.

A. Venturimeter
B. Pitot tube
C. Rotameter
D. None of these

A. Union
B. Tee
C. Reducer
D. Elbow

A. Single stage vertical
B. Centrifugal
C. Plunger
D. Diffuser

A. Venturimeter
B. Orificemeter
C. Flow-nozzle
D. Δp is same for all