Metallurgical Engineering Gate 2020 Questions with Answer

Ques 53 GATE 2020

In cold-rolling, for the sheet to be drawn into rolls, the angle of contact (or angle of bite) should be less than or equal to _______ degree (round off to one decimal place).
Given, the coefficient of friction between sheet and roll is 0.1

Ques 54 GATE 2020

Define [x] as the greatest integer less than or equal to x, for each x ∈ (-∞, ∞). If y = [x], then area under y for x ∈ is _________.

Ques 55 GATE 2020

The sum of the first n terms in the sequence 8, 88, 888, 8888,... is __________.

Ques 56 GATE 2020

Select the graph that schematically represents BOTH y = x^m and y = x^1/m properly in the interval 0 ≤ x ≤ 1, for integer values of m, where m > 1.

A

B

C

D

Ques 57 GATE 2020

The bar graph shows the data of the students who appeared and passed in an examination for four schools P, Q, R and S. The average of success rates (in percentage) of these four schools is _______.

Ques 58 GATE 2020

When 1 mole of C₃H₈ at 300 K is burnt with stoichiometric amount of oxygen at 300 K to form CO₂ and H₂O, the adiabatic flame temperature is 5975 K. If C₃H₈ is burnt under the same conditions but with excess oxygen, the adiabatic flame temperature will be _______.

Ques 59 GATE 2020

If liquid copper is cooled to 1353 K, magnitude of the driving force for liquid to transform to solid is _______ J⋅mol⁻¹ (round off to one decimal place).
Given, melting temperature and enthalpy of melting of copper are 1356 K and 13 kJ⋅mol⁻¹ respectively.

Ques 60 GATE 2020

A Basic Oxygen Furnace operator, at the end of oxygen blow, measures the dissolved oxygen content in the steel as 0.03 wt.% and the steel temperature as 1800 K. The carbon content [C] in the steel is _______ wt.% (round off to two decimal places).
Assume:
1) Equilibrium between dissolved carbon [C], dissolved oxygen [O], and CO (gas) at 1 atmosphere.
2) Henry's law is valid for both [C] and [O]
Given:
[C]₁ wt.% Henrian Std. State + [O]₁ wt.% Henrian Std. State → (CO)₁ atm Std. State
ΔG° = -19840 - 40.65 T J
R = 8.314 J⋅mol⁻¹⋅K⁻¹

Ques 61 GATE 2020

He is known for his unscrupulous ways. He always sheds _________ tears to deceive people.

Ques 62 GATE 2020

Jofra Archer, the England fast bowler, is _______ accurate.

Ques 63 GATE 2020

Select the word that fits the analogy:
Build: Building:: Grow: _______

Ques 64 GATE 2020

I do not think you know the case well enough to have opinions. Having said that, I agree with your other point.
What does the phrase ""having said that"" mean in the given text?

Ques 65 GATE 2020

Crowd funding deals with mobilisation of funds for a project from a large number of people, who would be willing to invest smaller amounts through web-based platforms in the project. Based on the above paragraph, which of the following is correct about crowd funding?