Surveying Practice | Set-04 | Chain Survey

MCQ Quiz

1. The mean sea level (MSL) adopted by survey of India for reference, is located at_

a) Mumbai
b) Kolkata
c) Delhi
d) Karachi

2. Number of links in 30 m chain_

a) 100
b) 250
c) 150
d) 300

3. Every 20 m chain should be accurate within _

a) ±5 mm
b) ±2 mm
c) ±3 mm
d) ±8 mm

4. Permissible limit of error in chaining for measurement on rough or hilly ground is _

a) 1 : 2000
b) 1:250
c) 1:1000
d) 1:500

5. Positive error is caused if _

a) Length of chain longer than the standard chain length
b) If the temperature is more than standard temperature of chain
c) If the pull is more than standard pull
d) Length of chain shorter than the standard chain length

6. Maximum allowable limit up to that measurement may vary from the true value is known as_

a) Residual error
b) Expected error
c) Sale error
d) Permissible error

7. Correction per chain length of 100 links along a slope having a 1 unit in n horizontal units_

a) 100 -n²
b) 100 +n³
c) 100 x n
d) 100/n²

8. The surface of zero elevation around the earth, which is slightly irregular or curved is known as_

a) Mean Sea level
b) Geoid Surface
c) Horizontal surface
d) Level surface

9. The sag correction in survey is always_

a) Negative
b) Positive
c) Zero
d) May positive and Negative

10. Invar tape is made up of_

a) Copper and steel
b) Tin and steel
c) Aluminum and steel
d) Nickel and Steel