# The velocity with which an elementary surge wave can travel upstream in a channel with depth y = 1.6 m and velocity V = 2.4 m/s is (Take g = 10 m/s2)

1.  16 m/s

2.  13.6 m/s

3.  2.4 m/s

4.  1.6 m/s

4

1.6 m/s

Explanation :
No Explanation available for this question

# For hydraulically efficient rectangular channel of bed width 4.0 m, the depth of flow is

1.  4 m

2.  0.5 m

3.  1 m

4.  2 m

4

2 m

Explanation :
No Explanation available for this question

# Consider the following statements in respect of critical flow in a wide rectangular channel: 1. The specific energy is minimum for a given discharge. 2. The discharge is maximum for a given specific energy 3. The specific force is minimum for a given discharge. 4. The Froude number is equal to unity. Which of these statements are correct

1.  1, 2 & 3 only

2.  1, 2, 3 & 4

3.  1, 2 & 4 only

4.  2, 3 & 4 only

4

1, 2, 3 & 4

Explanation :
No Explanation available for this question

# A high tension cable 5 cm in diameter is strung-out between two towers. At a wind velocity of 22.22 m/s (corresponding Reynolds number being 7.4 x 104) the frequency of vortex shedding is:

1.  100 Hz

2.  9.33 Hz

3.  93.3 Hz

4.  10.0 Hz

4

93.3 Hz

Explanation :
No Explanation available for this question

# Consider the following assumption made in the analysis of a jet impinging normally on a moving plate to introduce the principle of moment of momentum: 1. Friction between jet and plate is neglected. 2. Flow is steady 3. Impinging momentum of jet is uncharged. 4. Plate moves at a constant velocity. Which of these statements are relevant

1.  1, 2 & 4 only

2.  1, 2 & 3 only

3.  2, 3 and 4 only

4.  1, 2, 3 & 4

4

1, 2 & 4 only

Explanation :
No Explanation available for this question

# The thickness of a laminar boundary layer over a flat plate at two different sections P and Q are 0.8 cm and 2.4 cm respectively. If the section Q is 3.6 m downstream of P, the distance of section P from the leading edge of the plate is:

1.  0.32 m

2.  0.22 m

3.  0.45 m

4.  0.53 m

4

0.45 m

Explanation :
No Explanation available for this question

1.  1, 2 & 3 only

2.  1, 3 & 4 only

3.  2, 3 & 4 only

4.  1, 2, 3 & 4

4

1, 3 & 4 only

Explanation :
No Explanation available for this question

# A rectangular tank 10 m x 5 m in plan and 3 m deep is divided by a partition wall parallel to the shorter wall of the tank. One of the compartments contains water to a depth of 3 m, and the other a lighter liquid of specific gravity 0.75 to a depth of 2 m. The resultant pressure thrust on the partition wall is:

1.  10000 kg

2.  15000 kg

3.  20000 kg

4.  25000 kg

4

15000 kg

Explanation :
No Explanation available for this question

# Which of the following are pertinent to the realization of hydrological cycle 1. Latitudinal difference in solar heating of the Earth’s surface 2. Inclination of the Earth’s axis 3. Uneven distribution of land and water 4. Corioli’s effect

1.  1, 2 & 3 only

2.  1, 2 & 4 only

3.  2, 3 & 4 only

4.  1, 2, 3 & 4

4

1, 2 & 4 only

Explanation :
No Explanation available for this question

# The maximum velocity Um, the mean velocity U and shear velocity u* in the case of turbulent flow through circular pipes are related as (Um - U)/u* =

1.  2.5 for rough boundary flow only

2.  5.75 for smooth boundary flow only

3.  3.75 for both smooth and rough boundary flows

4.   5.75 for both smooth and rough boundary flows

4