1) How much percent energy is transferred from one trophic level to the next trophic level?
a. 20
b. 10
c. 25
d. 50
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Answer
Explanation
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ANSWER: 10
Explanation:
90% energy is lost to environment as unusable energy during the transfer. This energy flow explains why the earth can support more people if they eat at lower levels by eating grains, vegetables and fruits.
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2) Which of the following statement/s is/are correct regarding energy flow?
1) The energy flow in an ecological pyramid is one-directional and loss at each stage simply disappears as heat into the environment.
2) The loss of energy at each stage can also be explained through the famous First Law of Thermodynamics.
a. Only 1
b. Only 2
c. Both 1 and 2
d. None of the above
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Answer
Explanation
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ANSWER: Only 1
Explanation:
It can be explained through Second Law of Thermodynamics. The law states that ‘No energy transfer is 100 percent efficient’.
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3) Which of the following are new initiatives to enhance energy efficiency under National Mission for Enhanced Energy Efficiency?
1) Perform Achieve and Trade
2) Framework for Energy Efficient Economic Development
3) Market Transformation for Energy Efficiency
4) BEE star rating
a. 1, 2 and 4
b. 1, 2 and 3
c. 2, 3 and 4
d. All of the above
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Answer
Explanation
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ANSWER: 1, 2 and 3
Explanation:
There are four new initiatives - A market based mechanism to enhance cost effectiveness of improvements in energy efficiency in energy - intensive large industries and facilities, through certification of energy savings that could be traded (Perform Achieve and Trade); Accelerating the shift to energy efficient appliances in designated sectors through innovative measures to make the products more affordable (Market Transformation for Energy Efficiency); Creation of mechanisms that would help finance demand side management programmes in all sectors by capturing future energy savings (Energy Efficiency Financing Platform); Developing fiscal instruments to promote energy efficiency (Framework for Energy Efficient Economic Development).
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4) Match the following
1. Khaparkheda --------------------------- i. Nuclear energy
2. Gorakhpur ------------------------------- ii. Thermal energy
3. Kolar --------------------------------------- iii. Solar energy
4. Salal---------------------------------------- iv. Hydro electric power
a. 1-ii, 2-iv, 3-i, 4-iii
b. 1-ii, 2-i, 3-iii, 4-iv
c. 1-iv, 2-ii, 3-iii, 4-i
d. 1-ii, 2-i, 3-iv, 4-iii
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Answer
Explanation
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ANSWER: 1-ii, 2-i, 3-iii, 4-iv
Explanation:
No explanation is available for this question!
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5) Arrange the following in descending order by percentage of total electricity production in India.
a. Hydro, Thermal, Renewable, Nuclear
b. Hydro, Thermal, Nuclear, Renewable
c. Thermal, Hydro, Nuclear, Renewable
d. Thermal, Hydro, Renewable, Nuclear
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Answer
Explanation
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ANSWER: Thermal, Hydro, Renewable, Nuclear
Explanation:
Thermal energy contributed 64% (100,351.5 MW) of the country's total power generating capacity, while hydro energy contributed 24% (36,885.40 MW), renewable energy sources around 9.8% (15,427.10 MW), and nuclear energy contributed 3% (4,120 MW) to the total capacity.
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6) Consider the following statements
1. Brent Crude benchmark is a used to price two thirds of the world's internationally traded crude oil supplies.
2. Brent Crude is extracted from the middle east.
Which of the above statements is / are correct?
a. Only 1
b. Only 2
c. Both
d. None
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Answer
Explanation
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ANSWER: Only 1
Explanation:
Brent Crude is a major trading classification of sweet light crude oil that serves as a major benchmark price for purchases of oil worldwide. This grade is described as light because of its relatively low density, and sweet because of its low sulfur content. Brent Crude is extracted from the North Sea. Brent is the leading global price benchmark for Atlantic basin crude oils. It is used to price two thirds of the world's internationally traded crude oil supplies.
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7) Which of the following is correct if arranged from the highest to lowest fuel value.
a. Diesel, Kerosene, Wood, Coal, Hydrogen
b. Kerosene, Diesel, Wood, Coal, Hydrogen
c. Coal, Hydrogen, Wood, Diesel, Kerosene
d. Hydrogen, Kerosene, Diesel, Coal, Wood
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Answer
Explanation
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ANSWER: Hydrogen, Kerosene, Diesel, Coal, Wood
Explanation:
Fuel value is also called as a Calorific Value. Higher Calorific Value is the maximum amount of energy that can be obtained from the combustion of a fuel.
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