| Ranging of a survey line means |
A) placing a line on the ground along the shortest distance between two points
B) placing a line on the ground along the longest distance between two points
C) placing a line on the ground parallel to the line of sight
D) placing a line on the ground perpendicular to the line of sight
| 10 divisions of the Vernier scale will have the same length as |
A) 1 division of the Main Scale
B) 5 divisions of the Main Scale
C) 9 divisions of the Main Scale
D) 11 divisions of the Main Scale
| The magnitude of the sag correction during measurement of length by chaining is proportional to the |
A) Cube of the weight of the chain, in kg per m run
B) Cube root of the weight of the chain, in kg per m run
C) Square of the weight of the chain, in kg per m run
D) Square root of the weight of the chain, in kg per m run
| Correction due to the tape being laid along a slope |
A) is always positive
B) is always negative
C) can be positive or negative
D) depends on whether the measurement is down the slope or upwards the slope
| A 30-m chain was used to measure a line AB which was found to be 205 meters long. If the chain was found to be 2 cm too long, then the actual length of the line AB is |
A) 203.86
B) 204.86
C) 205.13
D) 206
| Reciprocal ranging is done |
A) when stations are far apart and not intervisible
B) when stations are far apart but intervisible
C) when stations are intervisible but line is longer than the chain length
D) when stations are intervisible but line is shorter than the chain length
| The descending order of precision among the following types of survey is 1. Chain 2. Compass 3. Theodolite 4. Micro-optic theodolite |
A) 1, 2, 3, 4
B) 4, 1, 2, 3
C) 4, 3, 2, 1
D) 4, 3, 1, 2
| Normal tension for a tape is defined as the pull |
A) applied by an average adult
B) applied for standardizing the tape
C) which equalizes the effect due to sag
D) that equalizes the effect due to the slope
| Measuring with a 30 m chain which is 0.01 m too short introduces a |
A) positive compensating error
B) negative compensating error
C) positive cumulative error
D) negative cumulative error
| Which of the following are the examples of cumulative errors in chaining? i. Chain is shorter than the designated length ii. sag of a chain iii. variation in pull |
A) Only (i)
B) (i) and (ii)
C) (ii) and (iii)
D) (i), (ii) and (iii)
