Isotherms

M

Magnetic bearing of a survey line at any place

Varies differently in different months of the year

Magnetic declination at any place

does not remain constant

Magnetic North lies in what direction relative to geographic North if the magnetic

declination is 14 degrees East?

14 Degrees east of geographic north

N

Normal tension is that pull which

neutralizes the effect due to pull and sag

Number of links per metre length of a chain are

5

O

One of the tacheometric constants is additive, the other constant, is

multiplying constant

Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to

28.28 m

One minute of longitude equals

60 Seconds

One degree of latitude equals

3600 Seconds

One degree of longitude equals

60 Minutes

On a 7.5 minute quadrangle where can information about magnetic declination be found?

lower left margin

On a topo map, how would you determine if a feature was a hill or a valley?

a valley would have close together contour lines with hachures

On a topographic map, the closer the contour lines the

steeper the slope

P

Places having same latitude

all

Pick up the correct statement from the following :

All the above.

Principle of Chaining is

Triangulation

Pick up the correct statement from the following :

all

Perpendicularity of an offset may be judged by eye, if the length of the offset is

15 m

Pick up the incorrect statement from the following :

an increase in temperature causes a tape to increase in length and the measured distance is too large

Pick up the correct statement from the following :

all

Pick up the correct statement from the following :

all the above.

Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following

plan table surveying

Pick up the correct statement from the following:

all the above.

Pick up the correct statement from the following :

all the above.

R

Resolving power of a telescope depends on

all

Refraction correction

partially eliminates curvature

S

Select the correct statement.

Two contours of different elevations do not cross each other except in case of an overhanging cliff.

Sensitiveness of a level tube is designated by

radius of level tube

Select the correct statement.

Contour interval on any map is kept constant.

Staff readings on pegs x and y from X station are 1.755 m and 2.850 m, and from station Y on staff head at Y and X are 0.655 m and 1.560 m. If reduced level of X is 105.5 m, the reduced level of Y is

104.5 m

Straight, parallel and widely spaced contours represent

an inclined plane surface

Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as

topographical surveys

Systematic errors are those errors

whose effects are cumulative and can be eliminated

Sag correction is

Always negative

Size of a theodolite is specified by

the diameter of lower plate

Select the incorrect statement.

The true meridians at different places are parallel to each other

T

The distance between two buildings is 400 meters. On the map that same distance is 8 cm. What is the scale of the map?

1:5000

The distance between two buildings is 40 meters. On the map that same distance is 4 cm. What is the scale of the map?

1:1000

The largest scale of the following is

1:24000

The reduced level of a floor is 99.995 m, the staff reading on the floor is 1. 505 m. If the inverted staff reading against the roof is 1.795 m, the floor level below the slab, is

3.300 m

The equator can also be called a:

Parallel of Latitude and Great Circle

The latitude (λ) of a place and the altitude (α) of the pole are related by

λ = α

The method generally preferred to for contouring an undulating area, is

tacheometrical surveying

The sensitiveness of a level tube decreases if

both viscosity and surface tension are increased.

The reduced bearing of a line is N 45° W. Its whole circle bearing is

315°

The reduced bearing of a line is S 87° W. Its whole circle bearing is

267°

The reduced bearing of a line is S 87° E. Its whole circle bearing is

93°

The reduced bearing of a line is N 87° E. Its whole circle bearing is

87°

The reduced bearing of a line is N 53° W. Its whole circle bearing is

307°

The largest scale of the following is

1:14000

The smallest scale of the following is

1:600000

Transition curves are introduced at either end of a circular curve, to obtain

gradual increase of super-elevation from zero at the tangent point to the specified amount at the junction of the transition curve with main curve

The bearings of two traverse legs AB and BC are N52° 45′ E and N34° 30′ E respectively. The deflection angle is

18° 15' L

The largest scale of the following is

1:1000

Total latitude of a point is negative if it lies

south of the reference parallel

The angles are adjustable in optical square but they are fixed in prism.

A building is

The intercept of a staff