12:

78.

74.

75.

76.

78.
79.
80.

81.

Pressure in pipes is measured using :
(A) manometer (ए) barometer
(C) venturimeter (D) pitot tube

A Pelton turbine, with six nozzles has specific speed வீ 8.1. The specific speed of one nozzle
will be :

(^) 2.1 ®) 33

© 8.1 D) 6.6

A discharge of 3 m%s flows in a canal, 2 m wide at a depth of 1.2 m. If the width of the canal
is reduced to 1.5 m by a canal transition, then neglecting the losses, the depth of flow after
the contraction will be :

മു 1.108 ൫ 100m

(0) 1.30 प D) 160m

In a rectangular open channel flow, for maximum discharge, the hydraulic mean depth
should be equal to :

(4) half the width (B) half the depth
(€) half the length ത ജങ്ക
Hydrograph is a curve showing the variation of :
(A) discharge with time (B) velocity with time
(C) moisture content with time (D) none of the above
If the duty of a crop for a base period of 120 days is 1250 hectares/cumec, its delta is :
(4) 8300 (ए) 80೧
രര ண (D) கண
The level difference between the top of dam and water level is known as :
(ക hydraulic margin (ए) एत्या
(C) delta (D) free board
The purpose of cross drainage works is to :
(4) take a roadway over a drain (B) take a railway over a drain
(0 take a canal across the drain (D) control the entry of silt in the drain

In a gravity dam, if the resultant force cuts the base within the middle third of the body of
the dam, the overturning failure will be :

(ಹ) clockwise (B) anticlockwise

(© णा (D) none of the above
The soil deposited at the bottom of a lake is known as :

ക) ೩101181 8011 (B) kankar 80/1

(C) sandy soil (D) lacustrine soil

139/2016 12 A