PSA_ Mine Surveying

1. A well conditioned triangle means

• a) The angles of a triangle should be nearly 60 degree

• b) Angle greater than 120 degree

• c) Having angles more than 30 degree or less than 120 degree d) None of these

• d) None of these

2. The principle of chain survey is

• a) quadrangulation

• b) Triangulation

• c) Orientation

• d) None of these

3. The process of keeping intermediate points in line with the end points is called _____

• a) Ranging

• b) Triangulation

• c) Orientation

• d) None of these

4.The process of keeping instrument exactly over station is called

• a) Ranging

• b) Triangulation

• c) Centering

• d) None of these

5. Levelling the theodolite is done by using ____

• a) Tripod legs and foot screws

• b) eye piece

• c) focusing screw

• d) None of these

6. Focusing adjustment in theodolite is done by __

• a) tripod legs and foot screws

• b) eye piece

• c) focusing screw

• d) None of these

7. Convert 210 degrees into Quadrantal bearing system

• a) S30^oW

• b) N30^oW

• c) S30^oE

• d) N30^oE

8. Convert N45^oW into WCB

• a) 315^o

• b) 215^o

• c) 115^o 

• d) 325^o

9. Least count of prismatic compass is

• a) 40^I

• b) 10^I 

• c) 20^I    

• d) 30^I

10. Horizontal angle between True north & Magnetic north is called

• a) Declination

• b) Dip

• c) Azimuth

• d) None of these