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Civil Engineering (CE) Exam  >  Civil Engineering (CE) Test  >  Structural Analysis  >  Test: External Work & Strain Energy - Civil Engineering (CE) MCQ

External Work & Strain Energy - Free MCQ Practice Test with solutions,


MCQ Practice Test & Solutions: Test: External Work & Strain Energy (10 Questions)

You can prepare effectively for Civil Engineering (CE) Structural Analysis with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: External Work & Strain Energy". These 10 questions have been designed by the experts with the latest curriculum of Civil Engineering (CE) 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 20 minutes
  • - Number of Questions: 10

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Test: External Work & Strain Energy - Question 1
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 Ue= work done by all external forces
Ui = internal work or strain energy
Δ = final elongation of bar
Θ = final angular deflection

Ui is not developed when:- 

Detailed Solution: Question 1

Answer: d
Explanation: Ui is developed when structure deforms, which is happening in other three options.

Test: External Work & Strain Energy - Question 2
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What will be the value of Ue if material is linear elastic? Axial force is increased from 0 to P gradually. 

Detailed Solution: Question 2

Answer: c
Explanation: Due to linear elasticity, we can substitute force in terms of P and Δ and then integrate wrt x to get the final answer.

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Test: External Work & Strain Energy - Question 3
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What will be the work done force P if another load external load F’ causes deflection Δ’ in the above question? 

Detailed Solution: Question 3

Answer: d
Explanation: Here, P will remain constant. So, it will be a simple integration from 0 to Δ’.

Test: External Work & Strain Energy - Question 4
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 What will be the work done by F’? 

Detailed Solution: Question 4

Answer: c
Explanation: Here, P will remain constant. So, it will be a simple integration from 0 to Δ’.

Test: External Work & Strain Energy - Question 5
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What will be the value of Ue if material is linear elastic? Moment is increased from 0 to m gradually. 

Detailed Solution: Question 5

Answer: c
Explanation: Due to linear elasticity, we can substitute moment in terms of M and θ and then integrate wrt x to get the final answer. Mdθ is done for moment to calculate work done.

Test: External Work & Strain Energy - Question 6
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What will be the work done force M if another load external load M’ causes deflection θ’ in the above question?

Detailed Solution: Question 6

Answer: d
Explanation: Here, P will remain constant. So, it will be a simple integration from 0 to Δ’.

Test: External Work & Strain Energy - Question 7
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What will be the work done by M’ in above question?

Detailed Solution: Question 7

Answer: c
Explanation: Due to linear elasticity, we can substitute moment in terms of M and θ and then integrate wrt x to get the final answer. Mdθ is done for moment to calculate work done.

Test: External Work & Strain Energy - Question 8
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If an axial force N is applied gradually to a bar which is linear elastic and has a constant cross sectional area A and length L, what will be Δ?

Detailed Solution: Question 8

Test: External Work & Strain Energy - Question 9
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In the above question, what will be the value of Ui ? 

Detailed Solution: Question 9

Answer: c
Explanation: Once deformation is known, we can calculate the work done using earlier equations and then Ue = Ui.

Test: External Work & Strain Energy - Question 10
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What will be the value of dUi in terms of E and I? 

Detailed Solution: Question 10

Answer: c
Explanation: Relation between dθ and M/EI is known. So, we can use that to get results.

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About this Civil Engineering (CE) Practice Test

This test contains 10 MCQs on External Work & Strain Energy with detailed solutions for each question. It is part of the Structural Analysis course on EduRev, designed to align with the current Civil Engineering (CE) syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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