Chemical Engineering Basics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Chemical Engineering Basics, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Chemical Engineering Basics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Chemical Engineering Basics mcq questions that explore various aspects of Chemical Engineering Basics problems. Each MCQ is crafted to challenge your understanding of Chemical Engineering Basics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Chemical Engineering Basics MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Chemical Engineering Basics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Chemical Engineering Basics knowledge to the test? Let's get started with our carefully curated MCQs!

Chemical Engineering Basics MCQs | Page 14 of 136

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Q131.
As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise.

a.

110

b.

85

c.

60

d.

45

Discuss
Answer: (b).85
Q132.
For a first order chemical reaction, the concentration of the reactant decreases __________ with time.

a.

linearly

b.

exponentially

c.

logarithmically

d.

inversely

Discuss
Answer: (a).linearly
Q133.
Air standard Otto cycle is more efficient than the diesel cycle for the same

a.

heat addition & compression ratio.

b.

heat addition & pressure.

c.

compression ratio & pressure.

d.

cylinder dimension & rpm.

Discuss
Answer: (a).heat addition & compression ratio.
Q134.
Dephosphorisation of molten pig iron is favoured by

a.

oxidising and basic slag.

b.

reducing and basic slag.

c.

high activity co-efficient of phosphorous in metal.

d.

oxidising and neutral slag.

Discuss
Answer: (b).reducing and basic slag.
Q135.
In a neutral solution

a.

H⁺ ions are absent.

b.

OH⁻ ions are absent.

c.

both H⁺ and OH⁻ ions are present in very small but equal concentration.

d.

none of these.

Discuss
Answer: (c).both H⁺ and OH⁻ ions are present in very small but equal concentration.
Q136.
Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

a.

Admirability brass.

b.

Stainless steel.

c.

Aluminium brass.

d.

Titanium.

Discuss
Answer: (b).Stainless steel.
Q137.
Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.

a.

fracture

b.

dislocation

c.

slip

d.

twinning

Discuss
Answer: (c).slip
Q138.
A common disinfectant used in village wells for disinfection of water is

a.

free chlorine

b.

bromine

c.

iodine

d.

potassium permanganate

Discuss
Answer: (d).potassium permanganate
Q139.
Which of the following is an unconventional source of energy ?

a.

Thermal power

b.

Hydroelectric power

c.

Nuclear-fusion power

d.

Solar power

Discuss
Answer: (d).Solar power
Q140.
The product (s) of roasting of a sulphide ore is (are)

a.

oxide only.

b.

sulphate only.

c.

oxide and sulphate.

d.

dependent on temperature and partial pressure of oxygen & sulphur dioxide.

Discuss
Answer: (a).oxide only.
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