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.
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
Q22.
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%
Q23.
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
Q24.
Which of these bacteria is a redox mediator in microbial fuel cells?

a.

Pseudomonas aeruginosa

b.

Geothrix ferementans

c.

Desulfuromonas acetoxidans

d.

Shewanella oneidenensis

Discuss
Answer: (b).Geothrix ferementans
Q25.
Which has the correct descending order of Inhibitory Capacity?

a.

Propionic > Butyric > Acetic > Lactic

b.

Propionic > Acetic > Butyric > Lactic

c.

Lactic > Butyric > Acetic > Propionic

d.

Lactic > Acetic > Butyric > Propionic

Discuss
Answer: (a).Propionic > Butyric > Acetic > Lactic
Q26.
Which of the following is an undesirable microbe in endogenic silage microorganism with simple sugar as the substrate?

a.

Homolactic

b.

Propionic acid bacteria

c.

Heterolactic

d.

Yeast

Discuss
Answer: (d).Yeast
Q27.
Which of following is not a focus in conversing microbial communities to biofuel?

a.

Substrate Flexibility

b.

High productivity

c.

Higher number of products in one process

d.

Tolerance to stress

Discuss
Answer: (c).Higher number of products in one process
Q28.
At which step in the below diagram, phosphorus is released?

a.

Incineration

b.

Ash

c.

Bioleaching

d.

Anaerobic digestion

Discuss
Answer: (d).Anaerobic digestion
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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