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For the following questions answer them individually
The point at which the resultant pressure on a immersed surface acts, is known as:
Centre of Gravity
Centre of depth
Centre of pressure
Centre of immersed surface
The hydraulic mean depth or the hydraulic radius is the ratio of:
Area of flow and wetted perimeter
Wetted perimeter and diameter of pipe
Velocity of flow and area of flow
None of these
Reynolds number is the ratio of the inertia force to the:
Surface tension force
Viscous force
Gravity force
Elastic force
A pelton wheel is:
Tangential flow impulse turbine
Inward flow impulse turbine
Outward flow impulse turbine
Inward flow reaction turbine
The bricks should be burnt at temperature from:
$$300^\circ$$ C to $$500^\circ$$ C
$$500^\circ$$ C to $$700^\circ$$ C
$$700^\circ$$ C to $$1000^\circ$$ C
$$900^\circ$$ C to $$1200^\circ$$ C
In plane surveying:
The curvature of the earth is taken into consideration
The curvature of the earth is not taken into consideration
The degree of accuracy of surveys is high
The surveys extend over large areas
Which of the following formula is used for computing the quantity of water for fire demand?
Freemans formula
Kuichling formula
Bustons formula
All of these
The most common cause of acidity in water is:
Hydrogen
Oxygen
Carbon dioxide
An arrangement for backwashing is provided in:
Slow sand filter
Sedimentation tank
Rapid sand filter
The water content ratio of a soil is defined as the ratio of the:
Weight of water to the weight of solids
Volume of water to the volume of voids in the soil mass
Total volume of voids to the volume of soil solids
Total volume of voids to the total volume of soil
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