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.Management Sciences
Category: Fluid Mechanics
The hydraulic grade line is_________________?
0
A. always above the centre line of pipe
B. never above the energy grade line
C. always sloping downward in the direction of flow
D. all of the above
Least possible value of correction factor for________________?
1. kinetic energy is zero
2. kinetic energy is 1
3. momentum is zero
4. momentum is 1
The correct statements are?
A. (1) and (3)
B. (2) and (3)
C. (1) and (4)
D. (2) and (4)
A fluid of kinematic viscosity 0.4 cm2/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be__________________?
A. less than 1 m/sec
B. 1 m/sec
C. 1.5 m/sec
D. 2 m/sec
The unit of kinematic viscosity is_______________?
A. gm/cm-sec2
B. dyne-sec/cm2
C. gm/cm2-sec
D. cm2/sec
The wake_______________?
A. always occurs before a separation point
B. always occurs after a separation point
C. is a region of high pressure intensity
D. none of the above
If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, then the kinematic viscosity of that fluid in stokes is__________________?
A. 0.25
B. 0.50
C. 1.0
D. none of the above
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