Test: Surveying- 2 - GATE MCQ

Consider the following statements: Reciprocal leveling eliminates the effect of

1. Errors due to Earth’s curve

2. Errors due to atmospheric refraction

3. Mistakes in taking leveling staff readings

4. Errors due to line of collimation

Which of these statements are correct?

The type of surveying in which the curvature of the Earth is taken into account is called

Errors in changing is generally due to

Match List-I with List-II and select the correct answer using the codes given below (where the letters have their usual meaning) 

Which of the following errors affect the surveying work seriously?

Chain surveying is suitable when

What is the slope correction for a length of 30 m along a gradient of 1 in 20?

In a chain surveying conducted using 20 m chain, the distance was recorded as 327 m. But later on the chain was found 3 cm longer. What will be the true distance, then?

In a closed traverse having six sides, what will be the sum of the inclined angles?

A bench mark (BM) with reduced level (RL) = 155.305 m has been established at the floor of a room. It is required to find out the RL of the underside of the roof (R) of the room using spirit leveling. The back sight (BS) to the BM has been observed as 1.500 m whereas the foresight (FS) to R has been observed as 0.575 m (staff held inverted). The RL (m) of R will be 

The plan of a map was photocopied to a reduced size such that a line originally 100 mm, measures 90 mm. The original scale of the plan was 1 : 1000. The revised scale is

The following measurements were made during testing a leveling instrument

P₁ is close to P and Q₁ is close to Q. If the reduced level of station P is 100.000 m, the reduced level of station Q is 

The plan of a survey plotted to a scale of 10 m to 1 cm is reduced in such a way that a line originally 10 cm long now measures 9 cm. The area of the reduced plan is measured as 81 cm². The actual (m²) of the survey is ____________.

The observations from a closed loop traverse around an obstacle are:

What is the value of the missing measurement (rounded off to the nearest 10 mm)?

The latitude and departure of a line AB are +78 m and –45.1 m, respectively. The whole circle bearing of the line AB is

Following bearings are observed while traversing with a compass

After applying the correction due to local attraction, the corrected fore bearing of line BC will be