1. The horizon glass in an optical square is ?

wholly silvered

wholly unsilvered

one-fourth silvered and three-fourth unsilvered

half silvered and half unsilvered

Answer: half silvered and half unsilvered

Explanation:


2. The obstacle, which obstructs vision but not chaining, is a ?

river

pond

hill

all of these

Answer: hill

Explanation:


3. The true or geographical meridians through the various stations ?

are parallel

converge to the poles

converge from north pole to south pole

converge from south pole to north pole

Answer: converge to the poles

Explanation:


4. The horizontal angle between the true meridian and magnetic meridian is known as ?

true bearing

dip

local attraction

magnetic decline

Answer: magnetic decline

Explanation:


5. When the object lies on the left hand side of the chain line, then while taking offset with at optical square, it is held in ?

left hand upside down

right hand upside down

left hand upright

right hand upright

Answer: right hand upright

Explanation:


6. In a whole circle system, the bearing of a line is measured ?

always clockwise from the south point of the reference meridian towards the line right round the circle

clockwise or anticlockwise from the east or west whichever is nearer the line towards north or south

clockwise or anticlockwise from the north or south whichever is nearer the line towards east or west

none of the above

Answer: none of the above

Explanation:


7. Due to the magnetic influence of the earth, the magnetic needle of the prismatic compass be inclined downward towards the pole. This inclination of the needle with the horizontal is know ?

true bearing

dip

local attraction

magnetic decline

Answer: dip

Explanation:


8. Which of the following statement is wrong ?

The magnetic meridian coincides with the true meridian at all the places.

The magnetic meridian does not vary from place to place on the earth's surface.

The magnetic declination at a place is constant.

all of the above

Answer: all of the above

Explanation:


9. In plane surveying, ?

the curvature of the earth is taken into consideration

the curvature of the earth is taken into consideration

the surveys extend over small areas

the surveys extend over large areas

Answer: the surveys extend over small areas

Explanation:


10. An average length of a pace is ?

60 cm

80 cm

100 cm

120 cm

Answer: 80 cm

Explanation: