GATE ME branch:me PYQs & Answers — Page 75

Questions 741–750 of 1040. Imported answers require independent review unless marked reviewed.

A circular shaft having diameter

mm is manufactured by turning process. A 50 μm thick coating of TiN is deposited on the shaft. Allowed variation in TiN film thickness is ± 5 μm. The minimum hole diameter (in mm) to just provide clearance fit is

Your answerChoose one option.

65.01

65.12

64.95

65.10

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The crank of a slider-crank mechanism rotates counter-clockwise (CCW) with a constant angular velocity

, as shown.

Diagram for Mechanical Engineering question 36

Assume the length of the crank to be

Using exact analysis, the acceleration of the slider in the

-direction, at the instant shown, where the crank is parallel to

-axis, is given by

Your answerChoose one option.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Match the following sand mold cast defects with their respective causes.

	Defect		Cause
P	Blow hole	1	Poor collapsibility
Q	Misrun	2	Mold erosion
R	Hot tearing	3	Poor permeability
S	Wash	4	Insufficient fluidity

Your answerChoose one option.

P-4, Q-3, R-1, S-2

P-3, Q-4, R-2, S-1

P-2, Q-4, R-1, S-3

P-3, Q-4, R-1, S-2

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A horizontal cantilever beam of circular cross-section, length 1.0 m and flexural rigidity

is subjected to an applied moment

at the free end as shown in the figure.

Diagram for Mechanical Engineering question 37

The magnitude of the vertical deflection of the free end is ______ mm (round off to one decimal place).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A truss is composed of members AB, BC, CD, AD and BD, as shown in the figure. A vertical load of 10 kN is applied at point D. The magnitude of force (in kN) in the member BC is

Diagram for Mechanical Engineering question 38

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Two masses

and

having mass

and

, respectively, lying in the plane of the figure shown, are rigidly attached to a shaft which revolves about an axis through O perpendicular to the plane of the figure. The radii of rotation of the masses

and

are

and

, respectively. The angle between lines OA and OB is 90°. If

and

, then the balance mass to be placed at a radius of 200 mm is ______ kg (round off to two decimal places).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Consider an elastic straight beam of length

m, with square cross-section of side

mm, and Young’s modulus

GPa. This straight beam was bent in such a way that the two ends meet, to form a circle of mean radius

. Assuming that Euler-Bernoulli beam theory is applicable to this bending problem, the maximum tensile bending stress in the bent beam is ______ MPa.

Diagram for Mechanical Engineering question 39

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A four bar mechanism is shown in the figure. The link numbers are mentioned near the links. Input link 2 is rotating anticlockwise with a constant angular speed

. Length of different links are:

The magnitude of the angular speed of the output link 4 is

at the instant when link 2 makes an angle of 90° with

as shown. The ratio

is ______ (round off to two decimal places).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Consider a prismatic straight beam of length

m, pinned at the two ends as shown in the figure.

Diagram for Mechanical Engineering question 40

The beam has a square cross-section of side

mm. The Young’s modulus

GPa, and the coefficient of thermal expansion

. The minimum temperature rise required to cause Euler buckling of the beam is ______ K.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The probability that a part manufactured by a company will be defective is 0.05. If 15 such parts are selected randomly and inspected, then the probability that at least two parts will be defective is ______ (round off to two decimal places).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE ME branch:me PYQs

Question 36

Question 36

Question 37

Question 37

Question 38

Question 38

Question 39

Question 39

Question 40

Question 40