Logic - General Aptitude - General Aptitude (GA) Previous Year Questions

1

2015 · General Aptitude (GA) · General Aptitude · Logic

Chemical Engineering (CH) 2015

Match the output signals as obtained from four measuring devices in response to a unit step change in the input signal.
P: Gas chromatograph, with a long capillary tube
Q: Venturi tube
R: Thermocouple with first order dynamics
S: Pressure transducer with second order dynamics

A

P-IV, Q-III, R-II, S-I

B

P-III, Q-I, R-II, S-IV

C

P-IV, Q-I, R-II, S-III

D

P-II, Q-IV, R-III, S-I

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2

2015 · General Aptitude (GA) · General Aptitude · Logic

Chemical Engineering (CH) 2015

The transfer function for the disturbance response in an open-loop process is given by \(G_d^{\text{open}}(s)\). The corresponding transfer function for the disturbance response in a closed-loop feedback control system with proportional controller is given by \(G_d^{\text{closed}}(s)\). Select the option that is ALWAYS correct { \(O[G(s)]\) represents order of transfer function \(G(s)\) }:

A

\(O[G_d^{\text{open}}(s)] = O[G_d^{\text{closed}}(s)]\)

B

\(O[G_d^{\text{open}}(s)] \neq O[G_d^{\text{closed}}(s)]\)

C

\(O[G_d^{\text{open}}(s)] \geq O[G_d^{\text{closed}}(s)]\)

D

\(O[G_d^{\text{open}}(s)] \leq O[G_d^{\text{closed}}(s)]\)

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3

2015 · General Aptitude (GA) · General Aptitude · Logic

Chemical Engineering (CH) 2015

Select the WRONG statement regarding water gas shift converters from the list below.

A

Inter-stage cooling is provided between the two stages of shift converters.

B

Usually high temperature shift (HTS) reactor has a iron-based catalyst and low temperature shift (LTS) reactor has a copper-based catalyst.

C

HTS reactor is followed by LTS reactor.

D

LTS reactor is followed by HTS reactor.

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4

2020 · General Aptitude (GA) · General Aptitude · Logic

Chemical Engineering (CH) 2020

Repo rate is the rate at which Reserve Bank of India (RBI) lends commercial banks, and reverse repo rate is the rate at which RBI borrows money from commercial banks.
Which of the following statements can be inferred from the above passage?

A

Decrease in repo rate will increase cost of borrowing and decrease lending by commercial banks.

B

Increase in repo rate will decrease cost of borrowing and increase lending by commercial banks.

C

Increase in repo rate will decrease cost of borrowing and decrease lending by commercial banks.

D

Decrease in repo rate will decrease cost of borrowing and increase lending by commercial banks.

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5

2022 · General Aptitude (GA) · General Aptitude · Logic

Chemical Engineering (CH) 2022

A building has several rooms and doors as shown in the top view of the building given below. The doors are closed initially.
What is the minimum number of doors that need to be opened in order to go from the point P to the point Q?

A

4

B

3

C

2

D

1

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6

2024 · General Aptitude (GA) · General Aptitude · Logic

Chemical Engineering (CH) 2024

In the 4 x 4 array shown below, each cell of the first three columns has either a cross (X) or a number, as per the given rule.

1	1	2
2	X	3
2	X	4
1	2	X

Rule: The number in a cell represents the count of crosses around its immediate neighboring cells (left, right, top, bottom, diagonals).
As per this rule, the maximum number of crosses possible in the empty column is

A

0

B

1

C

2

D

3

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7

2025 · General Aptitude (GA) · General Aptitude · Logic

Chemical Engineering (CH) 2025

A color model is shown in the figure with color codes: Yellow (Y), Magenta (M), Cyan (Cy), Red (R), Blue (Bl), Green (G), and Black (K).
Which one of the following options displays the color codes that are consistent with the color model?

A

The option image shows a Venn diagram with regions labeled: Cy, G, Bl, K, R, G, Y, M, Cy.

B

The option image shows a Venn diagram with regions labeled: Cy, G, Bl, K, G, Y, M, Cy.

C

The option image shows a Venn diagram with regions labeled: Cy, G, Bl, K, R, G, Y, M, Cy.

D

The option image shows a Venn diagram with regions labeled: Cy, G, Bl, K, R, Bl, Y, M, Cy.

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8

2026 · General Aptitude (GA) · General Aptitude · Logic

Chemical Engineering (CH) 2026

A school has 100 students distributed among 1^st to 10^th standards.
Based on this, which one of the following statements is always correct?

A

There are at least 10 students who belong to the same standard.

B

There is at least one student in each standard.

C

There are at most 10 students in 10^th standard.

D

The total number of students from 1^st to 5^th standards is at least 50.

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9

2026 · General Aptitude (GA) · General Aptitude · Logic

Chemical Engineering (CH) 2026

Consider the cube shown below with its 8 corners labelled a, b, c, d, e, f, g, and h. The figure is representative. All corners are to be colored such that any two corners that are connected by an edge must be of different colors. The minimum number of colors required to achieve this is ______

A

8

B

4

C

3

D

2

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