Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Topicwise Question Bank for Mechanical Engineering  >  Test: Design Against Fluctuating Load - 1 - Mechanical Engineering MCQ

Test: Design Against Fluctuating Load - 1 - Mechanical Engineering MCQ


Test Description

10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Design Against Fluctuating Load - 1

Test: Design Against Fluctuating Load - 1 for Mechanical Engineering 2024 is part of Topicwise Question Bank for Mechanical Engineering preparation. The Test: Design Against Fluctuating Load - 1 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Design Against Fluctuating Load - 1 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Design Against Fluctuating Load - 1 below.
Solutions of Test: Design Against Fluctuating Load - 1 questions in English are available as part of our Topicwise Question Bank for Mechanical Engineering for Mechanical Engineering & Test: Design Against Fluctuating Load - 1 solutions in Hindi for Topicwise Question Bank for Mechanical Engineering course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Test: Design Against Fluctuating Load - 1 | 10 questions in 30 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Topicwise Question Bank for Mechanical Engineering for Mechanical Engineering Exam | Download free PDF with solutions
Test: Design Against Fluctuating Load - 1 - Question 1

Fatigue consideration plays an important role in the design of all of the following components, except

Test: Design Against Fluctuating Load - 1 - Question 2

 Identify the  WRONG statement about fatigue:

Detailed Solution for Test: Design Against Fluctuating Load - 1 - Question 2

Resistance to fatigue of a material is measured by endurance strength.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Design Against Fluctuating Load - 1 - Question 3

Which of the following process is not adopted for incresaing the fatigue strength of a material?

Test: Design Against Fluctuating Load - 1 - Question 4

The endurance limit, i.e. resistance to fatigue of a machine element can be improved by

Test: Design Against Fluctuating Load - 1 - Question 5

Which of the following is not exactly a property of material?

Detailed Solution for Test: Design Against Fluctuating Load - 1 - Question 5

The endurance limit, in a true sense, is not exactly a property of material like ultimate tensile strength. It is affected by factors such as the size of the component, shape of the component, the surface finish, temperature and notch sensitivity of the material.

Test: Design Against Fluctuating Load - 1 - Question 6

The S-N curve is the graphical representation of stress amplitude versus the number of stress cycles before the fatigue failure on a

Detailed Solution for Test: Design Against Fluctuating Load - 1 - Question 6

Test: Design Against Fluctuating Load - 1 - Question 7

Consider following statements about low cycle and high cycle fatigue:
1. Low cycle fatigue corresponds to stress cycle less than 1000.
2. High cycle fatigue corresponds to stress cycle more than 10000.
3. The machine components such as springs, ball bearings, gears etc. are subjected to high cycle fatigue.
4. A greater factor of safety is taken in low cycle fatigue to ignore the fatigue effect.

Which of the above statements are valid?

Detailed Solution for Test: Design Against Fluctuating Load - 1 - Question 7

Low cycle fatigue: stress cycles < 103

High cycle fatigue: stress cycles > 103

Example of low cycle fatigue: studs on truck wheels, failure of set screws for locating gears on shafts, short-lived device such as missile Example of high cycle fatigue: springs, gears, ball bearings

Test: Design Against Fluctuating Load - 1 - Question 8

Increase of actual stress over nominal stress due to stress raising notches in fatigue loading is given by

Detailed Solution for Test: Design Against Fluctuating Load - 1 - Question 8

Nominal stress = kfσ0

Actual stress due to notch = kfσ0

∴ Increase in actual stress = (kf-1)σ0 ,

Theoretical stress due to notch = ktσ0 ,

∴ Increase in theoretical stress = (kt-1)σ0

Test: Design Against Fluctuating Load - 1 - Question 9

Which of the following approximate relationship between the endurance limit and the ultimate tensile strength of the material based on 50% reliability is not correctly matched?

Detailed Solution for Test: Design Against Fluctuating Load - 1 - Question 9

Test: Design Against Fluctuating Load - 1 - Question 10

Stress concentration in a machine components results'from:
1. abrupt changes in the cross-section of the component.
2. pressure at points/areas of the component at which the load is applied.
3. point-to-point variation in the properties of the material of the component.

Which of the above statements are valid?

45 videos|314 tests
Information about Test: Design Against Fluctuating Load - 1 Page
In this test you can find the Exam questions for Test: Design Against Fluctuating Load - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Design Against Fluctuating Load - 1, EduRev gives you an ample number of Online tests for practice

Up next

Download as PDF

Up next