A pipe installed for ventilation purpose is called

The process of killing pathogenic bacteria's from water is called

The presence of calcium and magnesium chloride in water causes

The water obtained from ------ is generally known as underground water

Canal used to convey water from one source to the other is called

Name the famous arch dam in India

When the drain is over the canal, the structure provided is known as.

The optimum depth of kor watering is 19 cm for

The total depth of water required by a crop during the entire period the crop is in the field, is known as

When several contours coincide, it indicate

A fixed point of reference of known elevation is called

In the surveying telescopes cross hairs are fitted in

In a whole circle bearing system N 25° 15 W' corresponds to

The limiting length of the offset when its perpendicular direction is set out by an eye is

As average length of pace is

The processes of marking intermediate points on a survey lines is known as

Invar tape is made of an alloy of steel and

In ------- Ranging, the end stations are not indivisible

Length of one links is generally

A 20 m chain generally divided in to ... links

Smallest basic unit of length in metric systemis

π Radian equals ... degree

The branch of surveying which deals with the measurement in vertical plane is known as

Surveying is the art of determining -------- Position of different features on the surface of the earth

Vicat's apparatus is used to perform .... Test

To prevent segregation, the concrete should not be thrown from a height of more than

Which of the following grade is not recommended by IS: 456 - 1964

The minimum particle size of coarse aggregate is

The inert mineral material used for the manufacture of mortar arid concrete is

A fine aggregate is one whose particles are of size

The construction of temporary structure required to support an unsafe structure is called

For D.P.C at plinth level, the commonly adopted materials is

The effective size of a soil is

The ratio of the volume of voids to the total volume of soil mass is called

The highest point on the extrados is called

If the back sight to a B.M of 200 m is 1.525 m and foresight is 3.285 then the R.L of the forward station is

In an internal focusing telescope, focusing is achieved by the movement of a.... lens inside the telescope

The reading on a metric leveling staff can be made accurately to ...m

A reference surface above which elevation of a point are determined is called...surface

The still water surface of a pond represent a..... surface

The line joining the centre of the eyepiece and the optical centre of objective is called

Sensitiveness of a level tube is designated by ........... of level tube

The amount of correction of refraction is............that of the curvature

The leveling should always commence from

The point on which back sight and fore sight are taken is known as

A first sight taken on a leveling staff held at a point of known elevation is termed as

A line which passes through the optical Centre of the objective and also throug hthe intersection of the cross hair is called

The instrument used for transferring Ground point to the sheet is called

The working edge of thee of the alidade is known.as

The compass used for plane table survey is