1. For ideally incompressible fluid, the Mach number will be
A. 1
B. 1.5
C. 2
D. 5
Ans: A
2. Velocity distribution for flow between two fixed parallel plates
A. varies parabolically across the section
B. is zero at the plates and increases linearly to the midplane
C. is constant over the entire cross-section
D. none of these
Ans: A
3. If more than two branches of pipes are to be connected at the same point, then use a/an
A. UfliOfl
B. elbow
C. tee
D. none of these
Ans: C
4. Mass velocity is independent of temperature & pressure, when the flow is
A. unsteady through unchanged cross-section
B. steady through changing cross-section
C. steady and the cross-section is unchanged
D. unsteady and the cross-section is changed
Ans: C
5. Drag force acting on a body does not depend upon the
A. density of the fluid
B. velocity of the body
C. density of the body
D. projected area of the body
Ans: C
6. Very small pressure difference (< mm water coloumn) can be most conveniently measured by a/an ____________ manometer
A. inclined tube mercury
B. U-tube water
C. U-tube niercurv
D. inclined tube water
Ans: D
7. Acceleration head in a reciprocating pump
A. increases the work done during delivery stroke
B. increases the work done during suction stroke
C. does not change the work requirement of the pump
D. decreases the work done during suction stroke
Ans: C
8. Check valves are used
A. in bends
B. at high pressure
C. for controlling water flow
D.for unidirectional flow
Ans: D
9. In an incompressible fluid, the density is
A. sensible to changes in both temperature & pressure
B. not affected with moderate change in temperature & pressure
C. greatly affected only by moderate changes in temperature
D. greatly affected by moderate changes in pressure
Ans: B
10. Which of the fluid forces are not considered in the Revnold’s equation of flow
A. Pressure forces
B. Compressibility forces
C. Turbulent forces
D. Viscous forces
Ans: B
A. 1
B. 1.5
C. 2
D. 5
Ans: A
2. Velocity distribution for flow between two fixed parallel plates
A. varies parabolically across the section
B. is zero at the plates and increases linearly to the midplane
C. is constant over the entire cross-section
D. none of these
Ans: A
3. If more than two branches of pipes are to be connected at the same point, then use a/an
A. UfliOfl
B. elbow
C. tee
D. none of these
Ans: C
4. Mass velocity is independent of temperature & pressure, when the flow is
A. unsteady through unchanged cross-section
B. steady through changing cross-section
C. steady and the cross-section is unchanged
D. unsteady and the cross-section is changed
Ans: C
5. Drag force acting on a body does not depend upon the
A. density of the fluid
B. velocity of the body
C. density of the body
D. projected area of the body
Ans: C
6. Very small pressure difference (< mm water coloumn) can be most conveniently measured by a/an ____________ manometer
A. inclined tube mercury
B. U-tube water
C. U-tube niercurv
D. inclined tube water
Ans: D
7. Acceleration head in a reciprocating pump
A. increases the work done during delivery stroke
B. increases the work done during suction stroke
C. does not change the work requirement of the pump
D. decreases the work done during suction stroke
Ans: C
8. Check valves are used
A. in bends
B. at high pressure
C. for controlling water flow
D.for unidirectional flow
Ans: D
9. In an incompressible fluid, the density is
A. sensible to changes in both temperature & pressure
B. not affected with moderate change in temperature & pressure
C. greatly affected only by moderate changes in temperature
D. greatly affected by moderate changes in pressure
Ans: B
10. Which of the fluid forces are not considered in the Revnold’s equation of flow
A. Pressure forces
B. Compressibility forces
C. Turbulent forces
D. Viscous forces
Ans: B
1 comment:
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