Objective Question & Answer

Analysis of the statements for a horizontal venturimeter:

Continuity equation → velocity is higher at the throat (smaller cross-sectional area).

Bernoulli’s equation → pressure is lower at the throat.

Therefore:

A is incorrect — Velocity in the main pipe is lower (not greater) and pressure is higher (not

lesser) than at the throat.

B is correct — Velocity in the main pipe is lower and pressure is larger than at the throat.

C is correct — Pressure difference (P_main−P_throat) is positive.

D is incorrect — The pressure difference is positive, not negative.