Surveying Questions and Answers - Magnetic Bearing

1. If both hands above head and then brought down by the surveyor then the action of an assistant is _________
a) Move slowly forward
b) Move considerably backward
c) Correct
d) Wrong

Answer: b
Explanation: It is the signal referred by the surveyor to correct the assistant position. If both hands above head and then brought down by the surveyor then assistant should move considerably backward.

2. The more experienced of the chainmen should be ________
a) Rear end
b) Intermediate end
c) Final end
d) Leader

Answer: a
Explanation: Other chainmen holding the forward handle is known as the leader. More experienced chainmen mainly refer to the surveyor. He should always preferred to be at a rear end.

3. The chainmen keeps both the handles in the right hand and throws the rest of the portion of the chain in the forward direction with his right hand to _________
a) Mark the chain
b) Line the chain
c) Unfold the chain
d) Fold the chain

Answer: c
Explanation: To Unfold the chain, the chainmen keeps both the handles in the right hand and throws the rest of the portion of the chain in the forward direction with his right hand. The other assists in removing the knots etc and in making the chain straight.

4. If rapid sweep with left hand by surveyor then action by assistant is ________
a) Move slowly to the left
b) Move considerably to the left
c) Continue to move to the left
d) Plumb the rod to the left

Answer: b
Explanation: Rapid sweep by the surveyor implies that assistant should move considerably. Left hand of the surveyor implies that assistant has to move left side.

5. Left arm up and moved to the left by the surveyor then action of assistant should be __________
a) Move slowly to the left
b) Move considerably to the left
c) Continue to move to the left
d) Plumb the rod to the left

Answer: d
Explanation: Arm up and moved by the surveyor implies that the assistant has to plumb the rod. Left hand of the surveyor implies that the assistant has to move left side.

6. Which line passes through a point, such that plane passing that point and the north and south poles, intersects with the surface of the earth?
a) True Meridian
b) Magnetic Meridian
c) Arbitrary Meridian
d) Survey line

Answer: a
Explanation: True Meridian passes through the true north and south. Magnetic meridian is the imaginary line that connects magnetic south and north poles. Survey line is the line along which surveying proceeds.

7. Horizontal angle with the true Meridian through one of the extremities of the line is called?
a) True bearing
b) Magnetic Bearing
c) Arbitrary bearing
d) Bearing

Answer: a
Explanation: True bearing of a line is the horizontal angle which it makes with the true Meridian through one of the extremities of the line. Compass needle will be parallel to the magnetic meridian. Angle measured always keeping magnetic north as a reference is called magnetic bearing.

8. Direction shown by a freely floating and balanced magnetic needle free from all other attractive forces is __________
a) True Meridian
b) Magnetic Meridian
c) Arbitrary Meridian
d) Survey line

Answer: b
Explanation: Magnetic Meridian through a point is the direction shown by a freely floating and balanced magnetic needle free from all other attractive forces. Arbitrary Meridian is any Convenient direction towards permanent and prominent mark or signal, such as top of chimney or church spire.

9. Horizontal angle with the Magnetic Meridian through one of the extremities of the line is called ______
a) True bearing
b) Magnetic Bearing
c) Arbitrary bearing
d) Magnetic Declination

Answer: b
Explanation: Magnetic bearing of a line is the horizontal angle which it makes with the Magnetic Meridian through one of the extremities of the line.

10. Convenient direction towards permanent and prominent mark or signal is _________
a) True Meridian
b) Magnetic Meridian
c) Arbitrary Meridian
d) Survey line

Answer: c
Explanation: Arbitrary Meridian is any convenient direction towards permanent and prominent mark or signals, such as top of chimney or church spire. Magnetic meridian is the imaginary line that connects magnetic south and north poles.