Question 51 : Non-over flow double curvature concrete arch, is provided in
1. Hirakund dam
2. Bhakra dam
3. Nagarjuna Sagar dam
4. Iddiki dam.
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Question 52 : For the most economical trapezoidal open channel,
1. the semicircle drawn with top width as diameter must touch the three sides of the channel
2. half of the top width must be equal to one of the sloping sides
3. All
4. the hydraulic mean depth must be equal to half the depth of flow
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Question 53 : Hydraulic ram is a device
1. for accelerating water flow
2. none of these.
3. for lifting heavy loads
4. for lifting water without an electric motor
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Question 54 : The velocity distribution of viscous fluid through a circular/pipe is :
1. hyperbolic
2. circular
3. parabolic
4. elliptical
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Question 55 : Differential manometers are used to measure
1. difference in pressure at two points
2. atmospheric pressure
3. very low pressure.
4. pressure in water channels, pipes, etc.
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Question 56 : Liquids
1. do not occupy definite shape
2. cannot be compressed
3. are not affected by change in pressure and temperature
4. none of these.
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Question 57 : The radius of gyration of the water line of a floating ship is 4 m and its metacentric height is 72.5 cm. The period of oscillation of the ship, is
1. Π
2. 2Π
3. 4Π
4. 3Π
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Question 58 : The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called
1. Frode number
2. Reynold number
3. Euler number
4. Weber number.
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Question 59 : Highest dam in India, is
1. Iddiki dam.
2. Hirakund dam
3. Nagarjuna Sagar dam
4. Bhakra dam
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