AE-JE Foundation CE: Surveying Quiz 3

Which ones of the following are perpendicular to the plumb line?

i. Level Surface

ii. Level Line

iii. Horizontal Plane

iv. Horizontal Line

Assertion (A): The mean sea level provides a convenient datum all over the world.

Reason (R): The sea level at a place never changes.

Levelling data is provided. Which of the following statements is true?

The levelling data is given. What are the values of P and Q?

Which of the following errors can be eliminated using reciprocal levelling?

In a levelling operation, the level was first set up at station A and staff readings at A and B respectively were 1.675 and 2.738. The level was then moved to B and the readings taken at A and B were 1.583 and 2.644. What is the reduced level of B if the reduced level of A is 100.3m?

Which of the following instrument is used to measure ground slope?

Match list 1 with list 2 and select the correct answer using the codes given below the lists:

List 1

P) Ranging Rod

Q) Cross Staff

R) Chains

S) Arrows

List 2

1) To measure distance between two points

2) To draw offsets perpendicular to main line

3) To mark the points measured on the chain line

4) To establish intermediate points on the survey line

Planimeter is an instrument used to measure