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Test: Welded Joints - Mechanical Engineering MCQ


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10 Questions MCQ Test Design of Machine Elements - Test: Welded Joints

Test: Welded Joints for Mechanical Engineering 2024 is part of Design of Machine Elements preparation. The Test: Welded Joints questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Welded Joints MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Welded Joints below.
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Test: Welded Joints - Question 1

All welding processes require pressure along with heat.

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Explanation: Welding processes involving only heat and no pressure are called the fusion welding processes.

Test: Welded Joints - Question 2

The capacity of welded structures to damp vibrations is quite good.

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Explanation: Capacity of welded joints to damp vibrations is poor.

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Test: Welded Joints - Question 3

Themit consists of a finely divided mixture of iron oxide and copper.

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Explanation: Thermite is a mixture of iron oxide and copper.

Test: Welded Joints - Question 4

Rails in the field are generally welded by using

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Explanation: Wherever it is uneconomical to carry welding equipments, thermit welding is used.

Test: Welded Joints - Question 5

In gas welding which of the following is generally used?

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Explanation: Intense heat is released I a controlled way and at a moderate temperature.

Test: Welded Joints - Question 6

Among gas and electric arc welding, which has the higher rate of heating?

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Explanation: Gas welding has a gas temperature of about 3200’C while arc temperature is about 40000’C.

Test: Welded Joints - Question 7

Forge welding involves heating of parts to elastic stage and joint is prepared by impact force.

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Explanation: Heating is done up to plastic stage.

Test: Welded Joints - Question 8

 Filler material is used in electric resistance welding.

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Explanation: No filler material is used. Only the heat released from resistance of metallic parts to current is used for melting the adjoining parts.

Test: Welded Joints - Question 9

Which type of welding is generally used in automobile sector?

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Explanation: Electric resistance welding can be easily automated and hence is used in automobile sector.

Test: Welded Joints - Question 10

Hard peening is

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Explanation: Hammering is doe to relieve stresses and inducing compressive stresses to improve the fatigue strength of the joint.

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