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GATE 2021 ME : Toppers Quiz 5 (App update required to attempt this test)

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Question 1

The Mollier diagram of a pure substance is a

Question 2

A body is subjected to a pure tensile stress of 200 units. What is the maximum shear produced in the body at some oblique plane due to above condition ?

Question 3

The ratio of Euler’s buckling loads of columns with the same parameters having (i) both ends fixed, and (ii) both ends hinged is

Question 4

The maximum efficiency of power transmission through pipe is

Question 5

Consider two infinitely long thin concentric tubes of circular cross section as shown in the figure. If D₁ and D₂ are the diameters of the inner and outer tubes respectively, then the view factor F₂₂ is given by

Question 6

Five jobs (J1, J2, J3, J4 and J5) need to be processed in a factory. Each job can be assigned to any of the five different machines (M1, M2, M3, M4 and M5). The time durations taken (in minutes) by the machines for each of the jobs, are given in the table. However, each job is assigned to a specific machine in such a way that the total processing time is minimum. The total processing time is __________ minutes.

Question 7

In a turning operation, the tool life of the carbide tool was found to be 20 min and 100 min, at cutting speeds of 120 m/min and 80 m/min respectively. The tool life of tool under same condition but at a cutting speed of 100 m/min will be _____ min.
T₁ = 20 min V₁ = 120 m/min
T₂ = 100 min V₂ = 80 m/min

Question 8

Which mechanical property determines the stiffness of a material?

Question 9

A Quick return mechanism is shown below.The value of $Description: Description: 01_Tom-vibration_BLok_files\image094.png$ will be _________ (in degrees) stroke=60 cm
Length of slotted lever = 50 cm
$Description: Description: 01_Tom-vibration_BLok_files\image095.png$

Question 10

A boy drops a ball from a height of 9 m on a concrete ground. The ball then bounces from the ground vertically upwards. The coefficient of restitution is 0.8 What will be the velocity of the ball when it reach’s a height of 2m. ________

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ESE & GATE ME General

Jun 30ESE & GATE ME