The discharge formula used in the design of the syphon well drop is ____________

8/15 Cd. (2g)1/2. tan (Q/2). H5/2

8/15 Cd. (2g)1/2. tan (Q/2). H3/2

Which of the following loss is not considered while calculating the total head loss between the inlet well and D/s FSL?

Loss due to enlargement of the section

Loss due to contraction of section

Calculate the velocity over the notch (V1) and the velocity through the pipe (V3) if the full supply discharge is 2 cumecs. The area of flow over the trapezoidal notch is 0.58 m2. Assume the value of diameter of the pipe used as 1 m.

V1 = 2.54 m/sec and V3 = 3.44 m/sec

V1 = 3.44 m/sec and V3 = 2.54 m/sec

V1 = 2.54 m/sec and V3 = 3.44 m/sec

V1 = 3.44 m/sec and V3 = 3.44 m/sec

V1 = 0.44 m/sec and V3 = 2.04 m/sec

Explore topic-wise MCQs in Irrigation Engineering.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Irrigation Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.	The discharge formula used in the design of the syphon well drop is ____________
A.	8/15 C<sub>d</sub>. (2g)<sup>1/2</sup>. tan (Q/2). H<sup>5/2</sup>
B.	2/3 C<sub>d</sub>. (2g)<sup>1/2</sup>. L. H<sup>3/2</sup>
C.	8/15 C<sub>d</sub>. (2g)<sup>1/2</sup>. tan (Q/2). H<sup>3/2</sup>
D.	2.22H<sup>3/2</sup> [L + 0.4nH]
Answer» E.

Discussion

2.	Which of the following loss is not considered while calculating the total head loss between the inlet well and D/s FSL?
A.	Entry and exit losses
B.	Loss due to friction
C.	Loss due to enlargement of the section
D.	Loss due to contraction of section
Answer» E.

Discussion

3.	Calculate the diameter of the inlet well if the X and Y coordinate of the jet (issuing from the centre of pressure) w.r.t the water surface in the inlet well is 1.05 m and 1.88 m respectively.
A.	1.575 m
B.	2.82 m
C.	1.79 m
D.	0.83 m
Answer» B. 2.82 m

Discussion

4.	What is the height of the centre of pressure above the water level in the inlet well if the R.L of the centre of pressure is 150.83 m and the R.L of water level in inlet well is 148.30 m?
A.	2.53 m
B.	1.78 m
C.	3 m
D.	1.99 m
Answer» B. 1.78 m

Discussion

5.	Calculate the velocity over the notch (V₁) and the velocity through the pipe (V₃) if the full supply discharge is 2 cumecs. The area of flow over the trapezoidal notch is 0.58 m². Assume the value of diameter of the pipe used as 1 m.
A.	V<sub>1</sub> = 3.44 m/sec and V<sub>3</sub> = 2.54 m/sec
B.	V<sub>1</sub> = 2.54 m/sec and V<sub>3</sub> = 3.44 m/sec
C.	V<sub>1</sub> = 3.44 m/sec and V<sub>3</sub> = 3.44 m/sec
D.	V<sub>1</sub> = 0.44 m/sec and V<sub>3</sub> = 2.04 m/sec
Answer» B. V<sub>1</sub> = 2.54 m/sec and V<sub>3</sub> = 3.44 m/sec

Discussion

6.	______________ fall is adopted for smaller discharges and larger drops.
A.	Ogee fall
B.	Sarda fall
C.	Glacis fall
D.	Well-type fall
Answer» E.

Discussion

Explore topic-wise MCQs in Irrigation Engineering.

The discharge formula used in the design of the syphon well drop is ____________

Which of the following loss is not considered while calculating the total head loss between the inlet well and D/s FSL?

Calculate the diameter of the inlet well if the X and Y coordinate of the jet (issuing from the centre of pressure) w.r.t the water surface in the inlet well is 1.05 m and 1.88 m respectively.

What is the height of the centre of pressure above the water level in the inlet well if the R.L of the centre of pressure is 150.83 m and the R.L of water level in inlet well is 148.30 m?

Calculate the velocity over the notch (V1) and the velocity through the pipe (V3) if the full supply discharge is 2 cumecs. The area of flow over the trapezoidal notch is 0.58 m2. Assume the value of diameter of the pipe used as 1 m.

______________ fall is adopted for smaller discharges and larger drops.

Calculate the velocity over the notch (V₁) and the velocity through the pipe (V₃) if the full supply discharge is 2 cumecs. The area of flow over the trapezoidal notch is 0.58 m². Assume the value of diameter of the pipe used as 1 m.