Surveying Questions and Answers for Freshers on “Chain Folding, Unfolding, Adjustment, Degree of Accuracy – 2”.
1. Slow sweep with the left hand is signal by a surveyor, action by the 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: a
Clarification: Slow sweep by the surveyor implies that an assistant has to move slowly. Left hand of the surveyor implies the assistant has to move left side.
2. Slow sweep with the right hand is signal by a surveyor, action by the assistant is _________
a) Move slowly to the right
b) Move considerably to the right
c) Continue to move to the right
d) Plumb the rod to the right
Answer: a
Clarification: Slow sweep by the surveyor implies that an assistant has to move slowly. Right hand of the surveyor implies an assistant has to move right side.
3. Both arms extended forward horizontally and the hands depressed briskly is the signal by surveyor then the action of the assistant should be ______
a) Move slowly forward
b) Fix the rod
c) Correct
d) Wrong
Answer: b
Clarification: Both arms extended forward horizontally and the hands depressed briskly by the surveyor imply assistant has to fix the rod. These instructions or gestures are standard ways prescribed as per Indian standards.
4. What type of ranging is done if both ends of surveying lines are visible?
a) Direct
b) Indirect
c) Reciprocal
d) Unable to do
Answer: a
Clarification: Direct ranging is done if both ends of surveying lines are visible. Indirect ranging is done when both ends are not intervisible.
5. What has resorted to when both the ends of the survey line are not intervisible?
a) Direct
b) Indirect
c) Irreciprocal
d) Unable to do
Answer: b
Clarification: Reciprocal ranging is also called indirect ranging. Indirect ranging is done when both ends are not visible.
6. Degree of accuracy for Invar tape, spring balance is _____
a) 1 in 100
b) 1 in 1000
c) 1 in 10,000
d) 1 in 10
Answer: c
Clarification: In the case of Invar tape there is an error of 1 unit in the measured distance of 10,000. It may slightly vary or decrease over a period of time.
7. Degree of accuracy for steel tape, Plumb bob is _______
a) 1 in 100
b) 1 in 1000
c) 1 in 10,000
d) 1 in 10
Answer: b
Clarification: In the case of steel tape there is an error of 1 unit in the measured distance of 1000. Invar tape is 10 times more accurate than steel tape.
8. Degree of accuracy for tested chain is _________
a) 1 in 100
b) 1 in 1000
c) 1 in 10,000
d) 1 in 10
Answer: b
Clarification: In the case of a tested chain there is an error of 1 unit in the measured distance of 1000. It is the same as the Invar tape.
9. Degree of accuracy for chain under the average condition is _______
a) 1 in 500
b) 1 in 50,000
c) 1 in 5000
d) 1 in 50
Answer: a
Clarification: In case of the tested chain there is an error of 1 unit in the measured distance of 1000 units. In case of chain in average conditions there is an error of 1 unit in the measured distance of 500 units.
10. Degree of accuracy for a chain on rough or hilly ground is _________
a) 1 in 500
b) 1 in 2500
c) 1 in 350
d) 1 in 250
Answer: d
Clarification: In case of chain on the rough or hilly ground there is an error of 1 unit in the measured distance of 250. Degree of accuracy for chain decreases for chain on rough or hills areas when compared to smooth or plane surface ground due to the increase in number of irregular slopes.
To practice all areas of Surveying for Freshers,