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Test: Linear Measurements - 1 - Civil Engineering (CE) MCQ


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10 Questions MCQ Test GATE Civil Engineering (CE) 2025 Mock Test Series - Test: Linear Measurements - 1

Test: Linear Measurements - 1 for Civil Engineering (CE) 2024 is part of GATE Civil Engineering (CE) 2025 Mock Test Series preparation. The Test: Linear Measurements - 1 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Linear Measurements - 1 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Linear Measurements - 1 below.
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Test: Linear Measurements - 1 - Question 1

Which of the following instruments is generally used for base line measurements?

Detailed Solution for Test: Linear Measurements - 1 - Question 1

Invar tapes are used for linear measurement of very high degree precision such as base line measurements cloth or lines tap for rough and subsidiary measurements such as offset.

Test: Linear Measurements - 1 - Question 2

Which of the following is an obstacle to chaining but not to ranging?

Detailed Solution for Test: Linear Measurements - 1 - Question 2

 Obstacles to chaining:

  • Cases often occur in the field where the distance between two points is required, but direct chaining from one point to the other is impossible because of some sort of obstacle.
  • A river and pond is an obstacle to chaining but not ranging.
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Test: Linear Measurements - 1 - Question 3

Which of the following methods of offsets involves less measurement on the ground?

Test: Linear Measurements - 1 - Question 4

The permissible error in chaining for measurement with chain on rough or hilly ground is

Test: Linear Measurements - 1 - Question 5

The correction for sag is

Detailed Solution for Test: Linear Measurements - 1 - Question 5

Always negative, 

(Assuming parabola curve),
l1 = length suspended (m)
p = pud applied (kg or N)
w = weight of tape per meter length
wl1 = weight of tape suspended between supports

Test: Linear Measurements - 1 - Question 6

The maximum tolerance in a 20 m chain is

Detailed Solution for Test: Linear Measurements - 1 - Question 6

The maximum tolerance in 20 m chain is ±5 mm in 30 m chain is ±8 mm

Test: Linear Measurements - 1 - Question 7

The correction to be applied to each 30 metre chain length along θ° slope, is

Detailed Solution for Test: Linear Measurements - 1 - Question 7

Let 'L' be the distance measured along the slope inclined at angle 'θ' as shown in the figure:

Hypotenusal correction = Radial length on horizontal Plane - Projection of inclined length on a horizontal plane

∴ Hypotenusal correction = L - L × cos θ

∴ Correction = L × ( 1- cos θ) = 30( 1 - cos θ)

Therefore, correct answer is A.

Test: Linear Measurements - 1 - Question 8

A 30 m metric chain is found to be 0.1 m too short throughout the measurement. If the distance measured is recorded as 300 m, then the actual distance measured will be

Detailed Solution for Test: Linear Measurements - 1 - Question 8

Actual length of chain = 30 - 0.1 = 29.9 m

Test: Linear Measurements - 1 - Question 9

The length of a chain is measured from

Test: Linear Measurements - 1 - Question 10

A surveyor measured the distance between two points on the plan drawn to a scale of 1 cm = 40 m and the result was 468 m. Later he discovered that he used a scale of 1 cm = 20 m. What is the true distance between the two points?

Detailed Solution for Test: Linear Measurements - 1 - Question 10

Distance between two points measured with scale of 1 cm to 20 cm 
= 468/20 = 23.4 cm
Actual scale of the plan is 1 cm = 40 m
∴ True distance between points
= 23.4 x 40 = 936 m

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