Metallurgical Engineering Gate Yearwise 



Metallurgical Engineering Gate 2019 Questions with Answer

Ques 53 GATE 2019

The variation of standard free energies for two oxides AO and BO with temperature are shown below.

The correct statement with reference to the above figure is _______.

A

AO is a gas

B

BO is a gas

C

A will reduce BO above temperature T₁

D

B will reduce AO below temperature T₁


(b) is the correct answer.

Ques 54 GATE 2019

The Boudouard (or, carbon gasification) reaction is _______.

A

C(s) + 1/2O₂(g) → CO(g)

B

C(s) + O₂(g) → CO₂(g)

C

C(s) + CO₂(g) → 2CO(g)

D

CO(g) + 1/2O₂(g) → CO₂(g)


(c) is the correct answer.

Ques 55 GATE 2019

The equilibrium constant for the following reaction at 300 K is _______.
C(graphite) + 2H₂(g) → CH₄(g)
Given: At 300 K, ΔHo = -74,900 J⋅mol⁻¹; ΔSo = -80 J⋅mol⁻¹⋅K⁻¹;
R = 8.314 J⋅mol⁻¹⋅K⁻¹.

A

5.6 × 10⁶

B

3.6 × 10⁷

C

4.0 × 10⁸

D

7.3 × 10⁸


(d) is the correct answer.

Ques 56 GATE 2019

The partial pressure of zinc (in torr, rounded off to two decimal places) in equilibrium with liquid lead containing 0.03 mole % zinc at 900 K is _______.
Given: Vapour pressure of pure zinc (pZn) at 900 K is 0.027 atm. Henry's law coefficient (γoZn) for zinc at infinite dilute solution in lead on Raoultian scale is 8.55. 1 torr = 1.316 × 10⁻³ atm.


(0.05) is the correct answer.

Ques 57 GATE 2019

Equilibrium concentration of dissolved nitrogen (in wt.%, rounded off to three decimal places) in pure liquid iron, exposed to atmospheric air at 1873 K, is _______.
Given: Sieverts' law constant as a function of temperature (T; in Kelvin) is log₁₀K[N] = [-518 / T - 1.063] where K[N] has the dimension of atm-(1/2). Assume [hN] = [wt.%N] where [hN] is the activity of nitrogen with respect to 1 wt.% Henrian standard state.


(0.041) is the correct answer.

Ques 58 GATE 2019

Terminal rise velocity of a spherical shaped solid in a liquid obeys the following functional relationship:
U = f(d, W, µ, ρ)
Where, U is the terminal rise velocity, d is the diameter of the solid, W is the apparent weight of the solid, µ is the viscosity of liquid and ρ is the density of liquid. According to Buckingham Π theorem, the number of independent dimensionless variables needed to describe the phenomenon is _______.

A

1

B

2

C

3

D

5


(b) is the correct answer.

Ques 59 GATE 2019

Steady state radial heat conduction through a hollow, infinitely long zirconia cylinder is governed by the following ordinary differential equation:
1/r d/dr (rk dT/dr) = 0
Where, T is the temperature and r is the radial distance. The inner surface of the hollow cylinder is maintained at 1473 K and the outer surface at 973 K. The rate of heat loss per unit length through the outer surface of the hollow cylinder (in W⋅m⁻¹, rounded off to the nearest integer) is _______.
Given: Inner radius of cylinder = 0.05 m; outer radius of cylinder = 0.07 m and thermal conductivity of zirconia (k) = 2 W⋅m⁻¹⋅K⁻¹.


(18675) is the correct answer.

Ques 60 GATE 2019

Pressure drop in the granular zone of a blast furnace is 300 mm of water per meter of the bed height. The bed permeability is 0.8 m⁴⋅N⁻¹⋅s⁻¹. The volumetric flow rate of gas per unit area through the bed [in (m³⋅s⁻¹)⋅m⁻², rounded off to the nearest integer] is _______.
Assume Darcy's law is applicable and g = 9.8 m⋅s⁻². Density of water = 1000 kg⋅m⁻³.


(2350) is the correct answer.

Ques 61 GATE 2019

The fishermen, _______ the flood victims owed their lives, were rewarded by the government.

A

whom

B

to which

C

to whom

D

that


(c) is the correct answer.

Ques 62 GATE 2019

Until Iran came along, India had never been _______ in kabaddi.

A

defeated

B

defeating

C

defeat

D

defeatist


(a) is the correct answer.

Ques 63 GATE 2019

Since the last one year, after a 125 basis point reduction in repo rate by the Reserve Bank of India, banking institutions have been making a demand to reduce interest rates on small saving schemes. Finally, the government announced yesterday a reduction in interest rates on small saving schemes to bring them on par with fixed deposit interest rates. Which one of the following statements can be inferred from the given passage?

A

Whenever the Reserve Bank of India reduces the repo rate, the interest rates on small saving schemes are also reduced

B

Interest rates on small saving schemes are always maintained on par with fixed deposit interest rates

C

The government sometimes takes into consideration the demands of banking institutions before reducing the interest rates on small saving schemes

D

A reduction in interest rates on small saving schemes follow only after a reduction in repo rate by the Reserve Bank of India


(c) is the correct answer.

Ques 64 GATE 2019

The nomenclature of Hindustani music has changed over the centuries. Since the medieval period dhrupad styles were identified as baanis. Terms like gayaki and baaj were used to refer to vocal and instrumental styles, respectively. With the institutionalization of music education the term gharana became acceptable. Gharana originally referred to hereditary musicians from a particular lineage, including disciples and grand disciples.
Which one of the following pairings is NOT correct?

A

dhrupad, baani

B

gayaki, vocal

C

baaj, institution

D

gharana, lineage


(c) is the correct answer.

Ques 65 GATE 2019

""I read somewhere that in ancient times the prestige of a kingdom depended upon the number of taxes that it was able to levy on its people. It was very much like the prestige of a head-hunter in his own community.""
Based on the paragraph above, the prestige of a head-hunter depended upon _______.

A

the prestige of the kingdom

B

the prestige of the heads

C

the number of taxes he could levy

D

the number of heads he could gather


(d) is the correct answer.

Unique Visitor Count

Total Unique Visitors

Loading......

Question Options

Contributed by: