The net discharge through sewer as compared to water supplied duty accounted is about

The maximum flow occurs in an eggshaped sewer, when the ratio of depth of flow vertical diameter is

The openings provided along the sewer line at suitable intervals are called

The minimum velocity which will prevent the silting or deposition of particles of solid matter inside the sewers is

Maximum size of silt particle:

The Instrument used for fixing the pipe in position for cutting and threading operation:

Another name of conservancy system is

In Indian type closet, the trap should have a minimum water seal of:

For the design of sewer the percentage of sewage discharge is assumed as:

In network of pipes:

The suitable method for forecasting population for an old developed large city is:

Circular prestressing for water tank can be done with:

The function of an air vessel in a reciprocating pump is to:

The design discharge for the separate sewer system is taken equal to:

The mostly used tube well in India:

A centrifugal pump is started with its delivery valve kept:

Sanitary fixture EWC stands for:

The function of vent pipe in house drainage system is:

A portion of a pipe in which sewage flow under pressure due to sewer dropping below hydraulic gradient and then rising again, is called:

A floatation unit is usually provided to remove:

In which method of population forecast, percentage increase in population from decade to decade is assumed constant?

What is the rate of domestic demand with full flushing system?

Which among the following are not pipe fittings?

'Air binding' may occur in...........................

Which of the following is constructed below the street inlet to prevent the flow of grit, sand or debris in the sewer line?

Average duration of a particle of water to pass through a phase of the hydrologic cycle is known as the ..........................

The first stage of water treatment is:

Prevents escape of foul sewer gases from a water closet:

The pipe which carries discharge from sanitary fittings such as water closets, urinals etc. is called:

The trap which is not used in house drainage system is:

Usual minimum size of service pipe for domestic water supply is:

In India as per Indian Standards water consumption per day for domestic purpose is:

Which of the following methods are employed for determination of free and combined chlorine residuals in water?

Which one of the following pair is not correctly matched?

A hand tool which is used to hold and grip the pipe is known as:

Nahni trap is popularly known as:

The valves installed on the delivery side of the pumping set so as to prevent the back flow of stored or pumped water when the pump is stopped is called:

Which of the following is not a direction control valve?

Cowl is provided at:

The openings provided along the sewer line at suitable intervals are called:

The discharge per unit draw down of a well is known as:

In double acting reciprocating pumps, the water is acting on...............sides of the piston.

The symbol indicates the value of surface finish

Which one of the following indicates the Ra value ?

Which valve has two inlet / one outlet in hydraulic / pneumatic system?

Which of these parts from the casing of a valve that holds the fluid going through the valve ?

Regardless of type, all valves have the following basic parts, with the exception of

Fittings are fastened to PVC pipe by

The majority of pipe connections are made with______________

The automatic device which allows water to go in one direction-only