Test: Dynamic of Fluid Flow - 3 - Mechanical Engineering MCQ
10 Questions MCQ Test - Test: Dynamic of Fluid Flow - 3
The Bernoulli’s equation refers to conservation of
How are the velocity coefficient Cv, the discharge coefficient Cd and the contraction coefficient Cc of an orifice related
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The coefficient of velocity (Cv) for an orifice is
The equation of motion for a viscous fluid known as
A smooth pipe of diameter 200 mm carries water. The pressure in the pipe at section S1 (elevation:10 m) is 50 kPa. At section S2 (elevation:12 m) the pressure is 20 kPa and velocity is 2 ms-1. Density of water is 1000 kgm-3 and acceleration due to gravity is 9.8 ms-2. Which of the following is TRUE
While measuring the velocity of air ρ = 1.2 kg/m3, the difference in the stagnation and static pressure of a Pitot-static tube was found to be 380 Pa. The velocity at that location in m/s is
If a fluid jet discharging from a 50 mm diameter orifice has a 40 mm diameter at its vena contracta, then its coefficient of contraction will be
Match List-I with List-il and select the correct answer using the codes given below the lists:
List-I
A. Orifice meter
B. Broad crested weir
C. Pitot tube
D. Rotameter
List-Il
1. Measurement of flow in a channel
2. Measurement of velocity in a pipe/channel
3. Measurement of flow in a pipe of any inclination
4. Measurement of upward flow in a vertical pipe
Codes:
A B C D
(a) 3 1 4 2
(b) 1 3 2 4
(c) 3 1 2 4
(d) 1 3 4 2
A Pitot tube is used to measure the velocity of water in a pipe. The stagnation pressure head is 6 m and the static pressure head is 5 m. If the coefficient of tube is 0.98, then what is the velocity of flow?
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