Bioleaching and Biomining MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Bioleaching and Biomining, a fundamental topic in the field of Environmental Biotechnology. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Bioleaching and Biomining 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 Bioleaching and Biomining mcq questions that explore various aspects of Bioleaching and Biomining problems. Each MCQ is crafted to challenge your understanding of Bioleaching and Biomining principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Environmental Biotechnology tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Bioleaching and Biomining MCQs are your pathway to success in mastering this essential Environmental Biotechnology topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Bioleaching and Biomining. 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 Bioleaching and Biomining knowledge to the test? Let's get started with our carefully curated MCQs!

Bioleaching and Biomining MCQs | Page 3 of 6

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Q21.
What kind of pH is most suitable for bioleaching in majority of the metals?

a.

At very low pH

b.

At very high pH

c.

At low pH

d.

At high pH

Discuss
Answer: (c).At low pH
Q22.
Microbes that exhibit a low tolerance or have become adapted to low concentrations of soluble heavy metals in the leach suspension should be selected for bioleaching.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q23.
Which among the following is the most suitable particle size of solid waste?

a.

Order of few tens of millimeter

b.

Order of few tens of centimeter

c.

Order of few tens of micrometer

d.

Order of few tens of decimeter

Discuss
Answer: (c).Order of few tens of micrometer
Q24.
Which of the following microbial leaching techniques depend on the working volume of less than ten cubic meter (<10m3)?

a.

Laboratory Scale

b.

Pilot-Plant Scale

c.

Industrial Scale

d.

Commercial Scale

Discuss
Answer: (b).Pilot-Plant Scale
Q25.
FCC stands for _________

a.

Fluid Cracking Catalyst

b.

Fluid Catalytic Cracking

c.

Fluid Chemical Cracking

d.

Fluid Chemical Catalyst

Discuss
Answer: (b).Fluid Catalytic Cracking
Q26.
Which commercial bioleaching processes among the following involves piling up of uncrushed waste rock?

a.

In Situ

b.

Dump Leaching

c.

Heap Leaching

d.

Vat Leaching

Discuss
Answer: (b).Dump Leaching
Q27.
What percentage of total world copper production do bioleach of copper alone contributes?

a.

10%

b.

17%

c.

25%

d.

33.3%

Discuss
Answer: (c).25%
Q28.
The maximum temperature that may reach in the interior dump of copper bioleaching is ______

a.

120°C

b.

100°C

c.

90°C

d.

70°C

Discuss
Answer: (c).90°C
Q29.
Some heterotrophic bacteria are present in the copper dumps which indirectly affect metal ________ by affecting the growth and activity of metal solubilizing _______

a.

solubilization; bacteria

b.

solubilization; fungi

c.

activity; bacteria

d.

activity; fungi

Discuss
Answer: (a).solubilization; bacteria
Q30.
Which of the following mechanism is used for bioleaching of uranium?

a.

Direct Leaching Mechanism

b.

Indirect Leaching Mechanism

c.

Acid Leaching Mechanism

d.

Alkali Leaching Mechanism

Discuss
Answer: (b).Indirect Leaching Mechanism
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