Questions and answers for exam Preparation

MCQs

Total Questions : 150 | Page 7 of 15 pages

Question 61. Acidogenesis further break down the molecules received from hydrolysis in anaerobic digestion.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 62. Which of the following best indicates the steps of anaerobic digestion?

Waste water feed → biogas storage → generator → biogas
Waste water feed → digester → biogas → biogas storage → generator
Generator → waste water feed → digester → biogas → biogas storage
Waste water feed → biogas → digester → biogas storage → generator

Discuss Question

Answer: Option B. -> Waste water feed → digester → biogas → biogas storage → generator
Answer: (b).Waste water feed → digester → biogas → biogas storage → generator

Question 63. Which of the following best indicates the steps inside an anaerobic digester?

Hydrolysis → methanogenesis → acetogenesis → acidogenesis
Hydrolysis → acidogenesis → methanogenesis → acetogenesis
Hydrolysis → acidogenesis → acetogenesis → methanogenesis
Methanogenesis → acidogenesis → acetogenesis → hydrolysis

Discuss Question

Answer: Option C. -> Hydrolysis → acidogenesis → acetogenesis → methanogenesis
Answer: (c).Hydrolysis → acidogenesis → acetogenesis → methanogenesis

Question 64. Which of the following is produced in acetogenesis?

Ethanol
Acetate
Acetone
Ketone

Discuss Question

Answer: Option B. -> Acetate
Answer: (b).Acetate

Question 65. What occurs in the hydrolysis step of anaerobic digestion?

Large polymers combine with water molecules
Large polymers break down to form water molecules
Small polymers combine to form large polymers with the help of water molecules
Large polymers break down into amino acids, fatty acids and simple sugars

Discuss Question

Answer: Option D. -> Large polymers break down into amino acids, fatty acids and simple sugars
Answer: (d).Large polymers break down into amino acids, fatty acids and simple sugars

Question 66. What is normal radiation?

Direct radiation
Sun’s radiation and striking surface are perpendicular to each other
Incident solar radiation and striking surface are perpendicular to each other
Global insolation – direct radiation

Discuss Question

Answer: Option B. -> Sun’s radiation and striking surface are perpendicular to each other
Answer: (b).Sun’s radiation and striking surface are perpendicular to each other

Question 67. Diffuse radiation models can be classified into ________ and __________

direct and reflective
adiabatic and isotropic
isotropic and anisotropic
anisotropic and adiabatic

Discuss Question

Answer: Option C. -> isotropic and anisotropic
Answer: (c).isotropic and anisotropic

Question 68. What is hour angle of the sun?

Angle of radiation with earth’s surface
Angle between the hands of sun dial
Angle made by the sun’s rays with moon’s surface
Orientation of earth with respect to sun

Discuss Question

Answer: Option D. -> Orientation of earth with respect to sun
Answer: (d).Orientation of earth with respect to sun

Question 69. What is solar azimuth angle?

Orientation of earth with respect to sun
Orientation of moon with respect to sun
Angle of radiation with earth’s surface
Angular distance between zero azimuth and sun’s projection on ground

Discuss Question

Answer: Option D. -> Angular distance between zero azimuth and sun’s projection on ground
Answer: (d).Angular distance between zero azimuth and sun’s projection on ground

Question 70. What is solar intensity?

Amount of outgoing solar energy
Amount of incoming solar energy on a plane surface
Amount of outgoing solar energy on a plane surface per unit time
Amount of incoming solar energy on a plane surface per unit time per unit area

Discuss Question

Answer: Option D. -> Amount of incoming solar energy on a plane surface per unit time per unit area
Answer: (d).Amount of incoming solar energy on a plane surface per unit time per unit area