A. Above the centroid
B. Below the centroid
C. At the centroid
D. None of these
Ans-: B
Q.2 The unit of dynamic viscosity is ___.
A. M^2 per second
B. Newton sec per m^2
C. Newton sec per m^3
D. Kg sec / meter
Q.3 Spherical shape of the rain drop are due to ___.
A. Surface tension
B. Viscosity
C. Density
D. None of the above
Ans-: A
Q.4 The inside and outside pressure diffe-rence between inside and outside of water drop is ______.
A. P = T/r
B. P = 2T/r
C. P = T×r
D. 0
Ans-: B
Q.5 Which devise is used to measure very low pressure?
A. Thermometer
B. Manometer
C. Piezometer
D. None of these
Ans-: C
Q.6 Surface tension of water at 20°C is ___.
A. 60.71
B. 60.61
C. 52.23
D. 79.61
Ans-: A
Q.7 Due to balance of the body weight and the buoyancy force a floating body ______.
A. Submerged in water
B. Partially submerged
C. Floating
D. None of these
Ans-: B
Q.8 General energy equation holds for which type of flow?
A. Laminar flow
B. Uniform flow
C. Non- uniform flow
D. Steady flow
Ans-: C
Q.9 Hydraulic grade line may be above or below the centre line of conduit.
A. Yes
B. No
C. At specific pressure
D. None of these
Ans-: A
Q.10 During the opening of a valve in a pipe line ,the flow is ______.
A. Steady
B. Unsteady
C. Uniform
D. Turbulent
Ans-: B
Nice post
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