GATE CH topic:chemical-processes PYQs & Answers — Page 54

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topic:chemical-processes

Questions 531–540 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 54 of 65

Consider the following two equations:

The above set of equations is represented by

Your answerChoose one option.

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The fourth order Runge-Kutta (RK4) method to solve an ordinary differential equation

is given as

For a special case when the function

depends solely on x, the above RK4 method reduces to

Your answerChoose one option.

Euler’s explicit method

Trapezoidal rule

Euler’s implicit method

Simpson’s 1/3 rule

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A watch uses two electronic circuits (ECs). Each EC has a failure probability of 0.1 in one year of operation. Both ECs are required for functioning of the watch. The probability of the watch functioning for one year without failure is

Your answerChoose one option.

0.99

0.90

0.81

0.80

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The figure which represents

for

(x in radians) is

Your answerChoose one option.

Diagram for Chemical Engineering question 4

Diagram for Chemical Engineering question 4 (figure 2)

Diagram for Chemical Engineering question 4 (figure 3)

Diagram for Chemical Engineering question 4 (figure 4)

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The terminal velocity of a spherical particle in gravitational settling under Stokes’ regime varies

Your answerChoose one option.

linearly with the particle diameter

linearly with the viscosity of the liquid

directly with the square of particle diameter

inversely with the density of particle

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Critical speed of a ball mill depends on

Your answerChoose one option.

the radius of the mill (shell) and the radius of the particles

the radius of the mill (shell) and the density of the particles

the radius of the balls and the radius of the particles

the radius of the balls and the radius of the mill (shell)

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Economy of evaporators used for concentrating sugarcane juice is

Your answerChoose one option.

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Segmental baffles in a 2-4 shell and tube heat exchanger

Your answerChoose one option.

change the flow pattern of the tube side fluid and increase the overall heat transfer coefficient

increase the heat transfer coefficient in the shell side and support the tubes

help to reduce the thermal expansion of the tubes and increase the heat transfer coefficient in the tube side

increase the number of passes in the shell side and increase the heat transfer coefficient in the tube side

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In connection with petroleum refining, identify the incorrect statement among the following options.

Your answerChoose one option.

Desalting of crude oil is done before process it in atmospheric distillation unit

A stream of hydrogen is produced in catalytic reforming of naphtha

Asphalt used for pave is a petroleum product

Cetane number indicates the quality of petrol / motor spirit

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Polyvinyl chloride is produced by

Your answerChoose one option.

co-polymerization

addition-type kinetics

reacting chlorine with polyethylene

reacting hydrochloric acid with polyethylene

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GATE CH topic:chemical-processes PYQs

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10