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Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Test: Static & Dynamic Load Carrying Capacity - Mechanical Engineering MCQ

Test: Static & Dynamic Load Carrying Capacity - Mechanical Engineering MCQ


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15 Questions MCQ Test - Test: Static & Dynamic Load Carrying Capacity

Test: Static & Dynamic Load Carrying Capacity for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Test: Static & Dynamic Load Carrying Capacity questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Static & Dynamic Load Carrying Capacity MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Static & Dynamic Load Carrying Capacity below.
Solutions of Test: Static & Dynamic Load Carrying Capacity questions in English are available as part of our course for Mechanical Engineering & Test: Static & Dynamic Load Carrying Capacity solutions in Hindi 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: Static & Dynamic Load Carrying Capacity | 15 questions in 30 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study for Mechanical Engineering Exam | Download free PDF with solutions
Test: Static & Dynamic Load Carrying Capacity - Question 1
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Static load is defined as the load acting on the bearing when shaft is _____

Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 1

Explanation: As name suggests, static load means load during stationary position of the shaft.

Test: Static & Dynamic Load Carrying Capacity - Question 2
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 A total permanent deformation of 0.0001 of the ball diameter is taken for considering static load capacity of the shaft.

Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 2

Explanation: Permissible magnitude of deformation is set as per the experimental data.

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Test: Static & Dynamic Load Carrying Capacity - Question 3
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 Stribeck equation gives dynamic load capacity of the bearing.

Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 3

Explanation: It gives static load capacity of the bearing.

Test: Static & Dynamic Load Carrying Capacity - Question 4
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 Which of the following is expression for stribeck equation?(Number of balls=z)?
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 4

Explanation: C=(1/5)zP and P=kd².

Test: Static & Dynamic Load Carrying Capacity - Question 5
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The life of an individual ball bearing is the time period for which it works without any signs of failures.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 5

Explanation: It is measured by number of revolutions and not by time.

Test: Static & Dynamic Load Carrying Capacity - Question 6
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For majority of bearings, actual life is considerably greater than rated life.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 6

Explanation: Stastically it has been proved that life which 50% of a group of bearings will exceed is approximately five times rating of rated life.

Test: Static & Dynamic Load Carrying Capacity - Question 7
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The dynamic load carrying capacity of a bearing is defined as the radial load in radial bearings that can be carried for a minimum life of 1000 revolutions.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 7

Explanation: It is for 1 million revolutions.

Test: Static & Dynamic Load Carrying Capacity - Question 8
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 In the expression of dynamic load capacity P=XVF(r) + YF(a), V stands for ?
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 8

Explanation: It represent race rotation factor which depends upon whether inner race is rotating or outer race.

Test: Static & Dynamic Load Carrying Capacity - Question 9
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Calculate the bearing life if expected life for 90% bearings is 9000h and shaft is rotating at 1500rpm.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 9

Explanation: L=60x1500x9000/10⁶ million rev.

Test: Static & Dynamic Load Carrying Capacity - Question 10
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The bearing is subjected to a radial load of 4000N. Expected life for 90% bearings is 9000h and shaft is rotating at 1500rpm. Calculate the dynamic load capacity.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 10

Explanation: C=4000x(810)⅓.

Test: Static & Dynamic Load Carrying Capacity - Question 11
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A rolling contact bearing is specified as X307. Calculate the bearing diameter.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 11

Explanation: Diameter=5 times the last two digits.

Test: Static & Dynamic Load Carrying Capacity - Question 12
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A rolling contact bearing is specified as X307. Determine the series.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 12

Explanation: 1- Extra light series,2-Light series,3-Medium series,4-heavy series.

Test: Static & Dynamic Load Carrying Capacity - Question 13
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 Needles bearing consist of rollers of small diameter and very small length.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 13

Explanation: Also called as quill bearings, they consist of small diameter and comparatively longer b=rollers.

Test: Static & Dynamic Load Carrying Capacity - Question 14
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Extreme pressure causes ______ wear in the bearing parts.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 14

Explanation: Extreme pressure elements in EP additives are added in lubricating oils.

Test: Static & Dynamic Load Carrying Capacity - Question 15
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Scoring is a ________ phenomenon.
Detailed Solution for Test: Static & Dynamic Load Carrying Capacity - Question 15

Explanation: Alternative welding and shearing takes place.

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