Surveying mcq Practice Test – 3

If n observations are taken, the accidental errors are proportional to

The scale on which three dimensions can be measured, is known as

As per Indian Standard the total number of links in a 30-mether chain should be

A scale which has a common representative fraction, but read in different measures, is called a

The error in measured length due to sag of chain or tape is known as

When (h) is the difference in heights between the extremities of chain length (l) then the correction for slope required is:

When the length of a chain along a slope of θ is (l), the correction for slop required is

A triangle is said to be well conditioned if none of its angles is less than:

The longest chain line passing through the center of the area is known as

The tie line is run through the survey to

The permissible limits of error in chaining for measurement on rough or hilly ground is

The position of point can be fixed more accurately by

The base line is measured with

Invar tapes are made of an alloy of

Metallic tapes are made of

For accurate work, in comparison to chain, the steel band is used because it

The sag correction for chain line will be- When W is the weight of the chain, L is the span and P is the tension or pull.

An offset more than 15m in length is known as

An offset rod is provided at its top with:

An obstacle which obstructs both chaining and ranging may be

An obstacle which obstructs chaining but not ranging may be a:

On testing of a chain is found to be short, it can be adjusted by:

In order to locate a point by oblique offsets we must measure and note at least: