Tuesday, 8 June 2021

Target Gate 2022 (Fluid Mechanics)

 Q.1 Match List-I with List-II and select the correct option:

          List-I                            List-II

1. Venturimeter                  A. Flow rate

2. Currentmeter                 B. Flow velocity

3. Piezometer                    C. Flow pressure

(a) A-1, B-2, C-3           (b) A-2, B-1, C-3         (c) A-3, B-2, C-1              (d) A-3, B-1,C-2

Q.2 The limit of the values of the coefficient of discharge of venturimeter is between:

(a) 0.60 to 0.75           (b) 0.76 to 0.80               (c) 0.81 to 0.94                (d) 0.95 to 0.99

Q.3 A pitot tube (coefficient =1) is used to measure the velocity of air of mass density 1.2 kg/m3. If the head difference in a vertical U-tube filled with water is 12 mm then the velocity of air (in m/s will

(a) 10                          (b) 14                              (c) 17                                (d) 20

Q.4 The head loss at an orifice (Cv = 0.98) discharging under a head of 2 m is:

(a) 0.02 m                   (b) 0.04 m                     (c) 0.06m                             (d) 0.08m

Q.5 The viscosity of water as compared to that of air is about

(a) 50 times                 (b) 55 times                   (c) 60 times                         (d) 65 times

1 comment:

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