Scour valves are provided

A At street corners to control the flow of water
B At every depression and dead ends to drain out the waste water that may collect there
C At the foot of rising main along the slope to prevent back running of water
D At every summit of rising mains

Correct Answer: At every depression and dead ends to drain out the waste water that may collect there

Bissoy MCQ
#Civil Engineering #Environmental Engineering

Related Questions

According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is
A 1.25 D
B 1.50 D
C 1.75 D
D 2.00 D
Foot valves provided in pumps are __________ valves.
A Relief
B Three/four way
C Pressure reducing
D Directional control
Three valves, when opened individually, can drain the water from a certain tank in 3,4 and 5 minutes respectively . What is the greatest part of the tank that can be drained in one minute by opening just two of valves?
A 7/12
B 4
C 5
D 7
Three valves when opened individually, can drain the water from certain tank in 3, 4 and 5 minutes respectively, What is the greatest part of the tank that can be drained in one minute by opening just two of valves.
A 712
B 12
C 14
D 15
The scour depth D of a river during flood, may be calculated from the Lacey's equation
A D = 0.47 $$\left( {\frac{{\text{Q}}}{{\text{f}}}} \right)$$
B D = 0.47 $${\left( {\frac{{\text{Q}}}{{\text{f}}}} \right)^{\frac{1}{2}}}$$
C D = 0.47 $${\left( {\frac{{\text{Q}}}{{\text{f}}}} \right)^{\frac{1}{3}}}$$
D D = 0.47 $${\left( {\frac{{\text{Q}}}{{\text{f}}}} \right)^{\frac{2}{3}}}$$
If D is the depth of scour below original bed, then the width of launching apron is generally taken as
A 1.2 D
B 1.5 D
C 2.0 D
D 2.5 D
In distribution pipes, drain valves are provided at
A lower point
B higher point
C junction points
D any where
Foot valves are provided in the suction line of a centrifugal pump to
A Avoid priming, every time we start the pump
B Remove the contaminant present in the liquid
C Minimise the fluctuation in discharge
D Control the liquid discharge
Safety valves are provided in chemical equipments to guard against excessive
A Temperature
B Pressure/pressure fluctuation
C Turbulence
D Noise
The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. If the maximum number of valves that can be closed at the same time are closed which of the following must true?
A R is open
B S is open
C T is open
D Z is open

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