Hydraulics - Civil Engineering Questions and Answers

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Manometers are used to measure

pressure in water channels, pipes etc.

difference in pressure at two points

atmospheric pressure

very low pressure.

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

For maximum horse power of a nozzle, the head supplied must be equal to

head loss in the pipe due to friction

twice the head loss in the pipe due to friction

thrice the head loss in the pipe due to friction

four times the head loss in the pipe due to friction.

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The ratio of frictional factor and coefficient of friction used in general equation for a head loss in a pipe, is

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Flow in pipes is turbulent if Reynold number is

less than 2100

more than 3000

between 2100 and 3000

none of these.

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Back water curve is caused if

friction head loss is more than the bed slope

pressure is due to weir in the channel

there is an increase in width of the channel

none of these.

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Power transmitted through a pipe is maximum when friction head loss, is

one-half of the total head supplied

one-third of the total head supplied

one-fouth of the total head supplied

equal to the total head supplied.

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The specific weight of water is 1000 kg/m³

at normal pressure of 760 mm

at 4°C temperature

at mean sea level

all the above.

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Specific weight of liquid

remains constant at every place

does not remain constant at every place

varies from place to place on the earth

does not vary on any other planet.

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Manning's formula is used for

flow in open channels

head loss due to friction in open channels

head loss due to friction in pipes flowing full

flow in pipes.