Surveying Test ...

For which of the following purposes can the Geographic Information System not be used?

A tower is photographed from an elevation of 1000 m above datum. The radial distance measured from principal points to the bottom and top of tower are 80 m and 100 m respectively. The bottom of the tower is at 300 m above ground level.

What is the radius of curve for an arc length equal to that of chord length of 10 m, given the degree of the curve is 5°?

The system that uses the Sun as a source of electromagnetic energy and records the naturally radiated and reflected energy from the object is called

IF the number of photographs required to cover an area of 600 km² is 725 and the ratio of longitudinal overlap to side overlap is 3. Scale of the aerial photograph used will be 1 in _________.

Assume size of photograph to be 36 cm × 36 cm and side overlap to be 25%.

The measured co-ordinates on the vertical photographs are

X_a = +15.50 mm

Y_a = -71.20 mm

X_b = +109.20 mm

Y_b = -25.20 mm

The elevations of a and b are 502 m and 525 m respectively. If the flying height above the datum is 1670 m, the ground distance of a line AB will be ______ m.

Assume focal length to be 158 mm.

Consider the following statements regarding the Remote Sensing Survey:

1) Information transfer is accomplished by the use of electromagnetic radiation

2) Remote Sensing from space is done by satellites

3) Remote Sensing has no application in Earthquake prediction

Which of the above statements are correct?

Consider the following statements about Global Positioning Systems (GPS):

1) The position of an object can be exactly determined by a single satellite

2) The position of the observer (moving person or vehicle) on the ground is determined by an orbiting satellite

3) Atomic clocks are fixed in satellites to calculate the positioning of the satellite to aid in determining travel times.

4) Absolute positioning, where an accuracy of 1 cm to 5 cm is needed, depends upon the health of the satellite