Civil Engineering - Hydraulics

Exercise :: Hydraulics - Section 1
31.
A pipe of 0.1 m^{2} cross sectional area suddenly enlarges to 0.3 m^{2} cross-sectional area. If the discharge of the pipe is 0.3 m^{3} /sec, the head loss is

A.
2/g m of water B.
g /2 m of waterC.
1g m of water D.
g m of water.

Answer: Option A

Explanation:

32.
Maximum efficiency of transmission of power through a pipe, is

Answer: Option D

Explanation:

33.
An ideal flow of a liquid obeys

A.
Continuity equation B.
Newton's law of viscosity C.
Newton's second law of motion D.
dynamic viscosity law,

Answer: Option A

Explanation:

34.
Euler's equation for motion of liquids, is given by

Answer: Option C

Explanation:

35.
Reynold number is the ratio of initial force and

A.
viscosity B.
elasticity C.
gravitational force D.
surface tension.

Answer: Option A

Explanation: