FLUID MECHANICS OBJECTIVE QUESTIONS
1. When a fluid is in motion the prrssure a point is same in all directions. Then the fluid is
A. Real
B. Non newtonian
C. Ideal
D. Newtonian
2. A hydraulic turbine runs at 240 rpm under a head of 9 m. What will be the speed ( in rpm) of the turbine if operating head is 16 m.
A. 320
B. 426
C. 264
D. 230
3. The discharge of a liquid of kinematic viscosity 0.04 m2/s through a 80 mm diameter pipe is 0.32×3.14 m3/s. The flow is
A. Laminar
B. Turbulent
C. Transition
D. Critical
4. The velocity at a point on the crest of a model dam was mentioned to be 1 m/s. The corresponding prototype velocity for a linear scale ratio of 25 , in m/s is
A. 25
B. 2.5
C. 5
D. 0.04
5. Pressure force on the 15 cm diameter headlight of an automobile travelling at 0.25 m/s is
A. 10.4 N
B. 6.8 N
C. 4.8 N
D. 3.2 N
6. A piece of metal of specific gravity 7 floats in mercury og specific gravity 13.6. What fraction of its volume is under mercury.
A. 0.5
B. 0.4
C. 0.515
D. 0.415
7. The ratio of pressures between two points A and B located respectively at depths 0.5 m and 2 m below a constant level of water in a tank is
A. 1:1
B. 1:2
C. 1:4
D. 1:16
8. Froudes number relates
A. Inertia force and gravity force
B. Inertia force and prrssure force
C. Inertia force and surface tension force
D. Inertia force and elastic force
9. In a pitot tube the velocity of flow at a point reduced to zero. That point is called
A. Stagnation point
B. Critical point
C. Metacentre
D. Equilibrium point
10. The velocity distribution in a pipe flow is parabolic if the flow is
A. Uniform, turbulent
B. Uniform, laminar
C. Non-uniform , steady
D. Rotational , compressible
1. When a fluid is in motion the prrssure a point is same in all directions. Then the fluid is
A. Real
B. Non newtonian
C. Ideal
D. Newtonian
2. A hydraulic turbine runs at 240 rpm under a head of 9 m. What will be the speed ( in rpm) of the turbine if operating head is 16 m.
A. 320
B. 426
C. 264
D. 230
3. The discharge of a liquid of kinematic viscosity 0.04 m2/s through a 80 mm diameter pipe is 0.32×3.14 m3/s. The flow is
A. Laminar
B. Turbulent
C. Transition
D. Critical
4. The velocity at a point on the crest of a model dam was mentioned to be 1 m/s. The corresponding prototype velocity for a linear scale ratio of 25 , in m/s is
A. 25
B. 2.5
C. 5
D. 0.04
5. Pressure force on the 15 cm diameter headlight of an automobile travelling at 0.25 m/s is
A. 10.4 N
B. 6.8 N
C. 4.8 N
D. 3.2 N
6. A piece of metal of specific gravity 7 floats in mercury og specific gravity 13.6. What fraction of its volume is under mercury.
A. 0.5
B. 0.4
C. 0.515
D. 0.415
7. The ratio of pressures between two points A and B located respectively at depths 0.5 m and 2 m below a constant level of water in a tank is
A. 1:1
B. 1:2
C. 1:4
D. 1:16
8. Froudes number relates
A. Inertia force and gravity force
B. Inertia force and prrssure force
C. Inertia force and surface tension force
D. Inertia force and elastic force
9. In a pitot tube the velocity of flow at a point reduced to zero. That point is called
A. Stagnation point
B. Critical point
C. Metacentre
D. Equilibrium point
10. The velocity distribution in a pipe flow is parabolic if the flow is
A. Uniform, turbulent
B. Uniform, laminar
C. Non-uniform , steady
D. Rotational , compressible
2 comments:
1. C
2. A
3. A
4. C
5. B
6. C
7. C
8. A
9. A
10. B
Dude can you tell me the solution of question number 5. pressure on 15 cm dia head light of auto mobile travelling at 0.25m/s is ?
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