Questions

Which of the following statement is correct?

I. Level surface is defined as a curved surface which at each point is perpendicular to the direction of gravity at the point.

An instrument used for reproducing enlarging or reducing maps

A hydro-carbon material of either natural or pyrogenous origin, and completely soluble in carbon disulphide is known as

To construct a 10 cm thick partition wall, preferred bond will be

To protect the top of a parapet wall from the action of rain water, it is provided with a special course and that course is

known as

Sewers are provided with ventilation columns. These columns are provided to

The various treatment processes in a water treatment plant are listed below:

1. Filteration

2. Chlorination

3. Sedimentation

4. Coagulation

5. Flocculation

The correct sequence of these processes in water treatment is

What is the area of a building, excluding the area occupied by walls?

The relationship between Theoretical Oxygen Demand (Th. OD), Biochemical Oxygen Demand (BOD) and Chemical

Oxygen Demand (COD) is given by:

When earth for foundation-trench filling is measured in loose stacks or in carts or lorries, what deduction is made for

settlement to obtain net quantities?

An intercepting trap is provided at the junction of

In a Mass Haul diagram, the term "haul" represents the:

Which of the following factor causes reduction in per capita water consumption?

Excavation exceeding 1.5 m in width and 10 m² on plan, but not exceeding 30 cm in depth, is described as:

For survival of fishes in river, the minimum dissolved oxygen required is

On peak hourly demand, what is the maximum daily consumption for the city which have average daily consumption of 100,000 m³?

A turbidimeter using blue cobalt plate is:

As per IS 1200, in measurement of brickwork, no deductions shall be made for:

The permissible limit of arsenic in drinking water as per the guidelines of WHO is

In a sedimentation tank:

A water treatment plant has a flow rate of 0.6 m³/s. The settling basin at the plant has effective settling volume dimensions

of length 20 m, depth 3 m and width 6 m. What percentage of the particles having  settling velocity of 0.004 m/sec is

removed?

Which one of the following pairs is INCORRECTLY matched?

A pipe, which is installed in the house drainage to preserve the water seal of traps is called

In leveling to determine the R.L. of a Beam of a building, inverted staff is held by touching bottom of the leveling staff to

the beam. Find out RL of the beam if Bench Mark (BM) elevation is 50.505m, reading on BM is 1.505 and reading on

beam is 1.040m.

How many cement bags are required for plain cement concrete flooring of size 3 m x 3 m and 100 mm thickness, using a

1:3:6 mix?

Assertion (A): Slow sand filters are less efficient in the removal of bacteria than rapid sand filter.

Reason (R): The sand used in slow sand filter is finer than in the rapid sand filters

Two consecutive readings in the levelling data are 1.445 m and 1.995 m. The first is a foresight and the second is a back

sight. Then,

The self cleaning velocity of waste water flowing through sewer should be

A city has a population of 1,40,000. As per Kuichling's formula, the fire demand for the city in lit/min is