Discussion
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- Question
Mach number is the ratio of inertia force to
Options- A. viscosity
- B. surface tension
- C. gravitational force
- D. elasticity.
- Correct Answer
- elasticity.
- 1. Euler's equation for the motion of liquids assumes that
Options- A. fluid is viscous
- B. fluid is homogeneous and incompressible
- C. velocity of flow is non-uniform over the section
- D. flow is unsteady along the stream line. Discuss
- 2. If cohesion between the molecules of a fluid is more than adhesion between the fluid and glass, the free level of fluid in a dipped glass tube will be
Options- A. higher than the surface of liquid
- B. same as the surface of liquid
- C. lower than the surface of liquid
- D. none of these. Discuss
- 3. In order to avoid capillary correction, the minimum diameter of a manometer used for measuring pressure, should be
Options- A. 2 mm
- B. 4 mm
- C. 6 mm
- D. 8 mm
- E. 10 mm. Discuss
- 4. The height of water level in a tank above the centre of a circular hole 2.5 cm in diameter is 50 m. The velocity of water flowing through the hole, is
Options- A. 31.1 m/sec
- B. 31.2 m/sec
- C. 31.3 m/sec
- D. 31.4 m/sec. Discuss
- 5. Gauge pressure is
Options- A. absolute pressure - atmospheric pressure
- B. absolute pressure + atmospheric pressure
- C. atmospheric pressure - absolute pressure
- D. none of these. Discuss
- 6. If u, v, w are the components of the velocity v of a moving particle, the equation
represents
Options- A. one diamensional flow
- B. two dimensional flow
- C. three dimensional flow
- D. none of these. Discuss
- 7. From a nozzle exposed to atmosphere, the liquid jet traverses
Options- A. a straight line
- B. a circular path
- C. an elliptical path
- D. a parabolic path. Discuss
- 8. Liquids
Options- A. cannot be compressed
- B. do not occupy definite shape
- C. are not affected by change in pressure and temperature
- D. none of these. Discuss
- 9. The ratio of the percentagge error in the discharge and percentage error in the measurement of head over a triangular notch, is
Options- A. 2/3
- B. 3/2
- C. 2/5
- D. 5/2 Discuss
- 10. Mercury is generally used in barometers because
Options- A. its vaour pressure is practically zero
- B. the height of the barometer will be less
- C. it is a best liquid
- D. both (a) and (b) above
- E. both (b) and (c) above. Discuss
Hydraulics problems
Search Results
Correct Answer: fluid is homogeneous and incompressible
Correct Answer: lower than the surface of liquid
Correct Answer: 6 mm
Correct Answer: 31.3 m/sec
Correct Answer: absolute pressure - atmospheric pressure
Correct Answer: three dimensional flow
Correct Answer: a parabolic path.
Correct Answer: do not occupy definite shape
Correct Answer: 5/2
Correct Answer: both (a) and (b) above
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