Target GATE & ESE 2022 (Fluid Mechanics)

 Q.1 The range of coefficient of discharge for a venturimeter is 

(a) 0.6-0.7             (b) 0.7-0.85            (c) 0.85-0.92              (d) 0.92-0.98

Q.2 A rotameter is used to measure:

(a) viscosity of fluids

(b) density of fluids

(c) flow rate of fluids

(d) rotational energy of a fluid

Q.3 Notch is a device used for measuring

(a) rate of flow through pipes

(b) rate of flow through a small channels

(c) flow velocity through a pipe line

(d) flow velocity through a small channel

Q.4 A cipolletti weir is:

(a) a rectangular weir of varying dimension

(b) a weir is designed for economical discharge

(c) a combination of a rectangular and triangular weir

(d) a trapezoidal weir whose side slopes are one horizontal to four vertical

Q.5 In a rectangular weir, the discharge varies as:

(a) H               (b) H^0.5       (c) H^1.5            (d) H^2.5

Q.6 The sheet of water flowing through a notch or over a weir is known as

(a) Nappe            (b) Crest            (c) Height of weir/notch     (d) Sill

Q.7 If the error in the measurement of head in a rectangular notch is 1% , then error in the measurement of discharge will be

(a) 1%                                                    (b) 1.5%

(c) 2%                                                   (d) 2.5%