GATE MT format:mcq PYQs & Answers — Page 11

Questions 101–110 of 379. Imported answers require independent review unless marked reviewed.

The constitutional undercooling condition for a hypothetical binary alloy of A with solute B during solidification is shown in the figure along with its binary phase diagram. Based on these two schematics, one can conclude that the solute concentration in region X will be __________ the average composition of the initial liquid phase.

Diagram for Metallurgical Engineering question 41

Your answerChoose one option.

less than

greater than

same as

independent of

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

The microstructures of a quenched steel tempered at three temperatures

for a fixed time are schematically illustrated. The solid circles represent cementite particles in ferrite matrix;

and

are average radii of cementite particles, and

and

are volume fractions of cementite at temperatures

and

, respectively. If the cementite in steel is more noble than ferrite, then which one of the three microstructures will have the highest corrosion rate when exposed to an aqueous solution of 3.5 wt. % NaCl?

Diagram for Metallurgical Engineering question 42

Your answerChoose one option.

Microstructure at

Independent of microstructure

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

An isotropic metallic cuboid block shown in the figure has a coefficient of linear thermal expansion

, Young’s modulus

and Poisson’s ratio

. The dimensions of the cuboid are

and

in the X, Y and Z directions, respectively. It is rigidly constrained against expansion in the X direction. However, it is free to expand in the Y and Z directions. It is initially stress-free. Subsequently, it is heated so that its temperature increases by

. What would be the CHANGE in the dimension of the cuboid in the Y direction?

Assume linear elasticity, and that thermal as well as mechanical strains are infinitesimally small.

Diagram for Metallurgical Engineering question 43

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 entries in Column I with the stacking sequences of the close-packed planes listed in Column II.

Column I P. Face centered cubic (FCC) structure Q. Intrinsic stacking fault in FCC R. Across an annealing twin boundary in FCC S. Hexagonal close-packed structure

Column II

ABCABC

ABABAB

ABCACBC

ABCABCABCBA

Your answerChoose one option.

P – 1, Q – 3, R – 4, S – 2

P – 2, Q – 3, R – 1, S – 4

P – 3, Q – 1, R – 4, S – 2

P – 2, Q – 4, R – 1, S – 3

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

Which one of the following graphs represents Griffith’s criterion for the growth of a crack in a brittle isotropic infinite large plate with a center crack?

In the graph,

is the magnitude of the total strain energy released (shown by solid curve) and

is the total surface energy (shown by dashed line) and

is the critical crack length (shown by downward arrow) at which the crack starts growing. The tangent to the

curve parallel to the

line is shown by the dotted line.

Your answerChoose one option.

Diagram for Metallurgical Engineering question 45

Diagram for Metallurgical Engineering question 45 (figure 2)

Diagram for Metallurgical Engineering question 45 (figure 3)

Diagram for Metallurgical Engineering question 45 (figure 4)

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

For rolling of slabs, determine the correctness or otherwise of the following Assertion [a] and Reason [r].

Assertion [a]: Grooves are made on the surface of the rolls parallel to their roll axes to achieve large thickness reduction in a short time.

Reason [r]: Given

is the coefficient of friction between the rolls and the slab, and

is the angle of bite between the entrance plane and the centerline of the rolls, unaided entry of slab in the rolls can take place only if

Your answerChoose one option.

Both [a] and [r] are true, and [r] is the correct reason of [a].

Both [a] and [r] are true, but [r] is not the correct reason of [a].

Both [a] and [r] are false.

[a] is true, but [r] is false.

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

“You are delaying the completion of the task. Send ______ contributions at the earliest.”

Your answerChoose one option.

you are

your

you’re

yore

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

References : ______ :: Guidelines : Implement (By word meaning)

Your answerChoose one option.

Sight

Site

Cite

Plagiarise

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

In the given figure, PQRS is a parallelogram with PS = 7 cm, PT = 4 cm and PV = 5 cm. What is the length of RS in cm? (The diagram is representative.)

Diagram for Metallurgical Engineering question 3

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

In 2022, June Huh was awarded the Fields medal, which is the highest prize in Mathematics.

When he was younger, he was also a poet. He did not win any medals in the International Mathematics Olympiad. He dropped out of college.

Based only on the above information, which one of the following statements can be logically inferred with certainty?

Your answerChoose one option.

Every Fields medalist has won a medal in International Mathematics Olympiad.

Everyone who has dropped out of college has won the Fields medal.

All Fields medalists are part-time poets.

Some Fields medalists have dropped out of college.

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

GATE MT format:mcq PYQs

Question 41

Question 42

Question 43

Question 44

Question 45

Question 46

Question 1

Question 2

Question 3

Question 4