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Test: Keys - Mechanical Engineering MCQ


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10 Questions MCQ Test Design of Machine Elements - Test: Keys

Test: Keys for Mechanical Engineering 2024 is part of Design of Machine Elements preparation. The Test: Keys questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Keys MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Keys below.
Solutions of Test: Keys questions in English are available as part of our Design of Machine Elements for Mechanical Engineering & Test: Keys solutions in Hindi for Design of Machine Elements course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Test: Keys | 10 questions in 20 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Design of Machine Elements for Mechanical Engineering Exam | Download free PDF with solutions
Test: Keys - Question 1

 A force 2P is acting on the double transverse fillet weld. Leg of weld is h and length l. Determine the shear stress in a plane inclined at θ with horizontal.

Detailed Solution for Test: Keys - Question 1

Explanation: F=PSinθ and width=h/(Sinθ+Cosθ).

Test: Keys - Question 2

Maximum shear stress in transverse fillet weld of leg h and length l is

Detailed Solution for Test: Keys - Question 2

Explanation: τ= PSinθ(Sinθ+Cosθ)/hl, by maximising it θ=67.5’ and hence find corresponding τ.

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Test: Keys - Question 3

A sunk key fits in the keyway of the _____ only.

Detailed Solution for Test: Keys - Question 3

Explanation: Sunk key fits halfway in the hub and halfway in the shaft.

Test: Keys - Question 4

Hollow saddle key is superior to flat saddle key as far as power transmitting capability is concerned.

Detailed Solution for Test: Keys - Question 4

Explanation: The resistance to slip in case of flat key is more.

Test: Keys - Question 5

 Saddle key is more suitable than sunk key for heavy duty applications.

Detailed Solution for Test: Keys - Question 5

Explanation: In sunk key, relative motion is also prevented by shear resistance of sunk key and hence sunk key is recommended.

Test: Keys - Question 6

The main advantage of sunk key is that it is a _____ drive.

Detailed Solution for Test: Keys - Question 6

Explanation: Sunk key is a positive drive and no slip occurs.

Test: Keys - Question 7

Woodruff key permits _____ movement b/w shaft and the hub.

Detailed Solution for Test: Keys - Question 7

Explanation: Woodruff key is a sunk key and doesn’t permit axial moment.

Test: Keys - Question 8

Determine the length of kennedy key required to transmit 1200N-m and allowable shear in the key is 40N/mm². The diameter of shaft and width of key can be taken as 40mm and 10mm respectively.

Detailed Solution for Test: Keys - Question 8

Explanation: l=M/[dbτ√2].

Test: Keys - Question 9

 Splines are keys.

Detailed Solution for Test: Keys - Question 9

Explanation: Splines are keys made with shafts.

Test: Keys - Question 10

Involute splines have stub teeth with a pressure angle of ___

Detailed Solution for Test: Keys - Question 10

Explannation: Pressure angle is 30’ and not 60’.

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