Gobar gas is produced by the __________ of cown dung.

Gobar gas is produced by the __________ of 'gobar' (cow dung).

A

Hydrolysis

B

Fermentation

C

Oxidation

D

Dehydration

Gobar gas is produced by the __________ of ‘gobar’ (cow dung).

A

Fermentation

B

Condensation

C

Combustion

D

Distillation

Cow dung is the waste product of bovine animal species such has domestic cattle cows, buffalo and yaks. The resultant faecal matter is rich in minerals. Cow dung provides food for a wide range of animal and fungus species, which break it down and recycle it into the food chain and into the soil. It has an important function in maintaining biodiversity in heavily utilized pasture. Its also a plentiful and renewable resource. Which of the following, if true, would weakens the argument on why cow dung is important?

A

Dried cow dung is an excellent fuel, it is used to provide heat and a flame for cooking.

B

The manure is used as a rich agricultural fertilizer.

C

Dung is collected and used to produce biogas to generate electricity and heat.

D

Cow dung paste is often applied to the floors of rural homes in India .

E

Cow dung is used as an insect repellent.

. . . . . . . . gas is obtained from gobar gas plant by putting cow dung into plants.

A

Bio gas

B

Bio mass

C

Bio energy

D

Only A and B

Certain regions have houses smeared with cow dung. Why do people in these regions cover the floors and walls of their huts with cow dung and mud?

A

The smell of cow dung keeps the animals away

B

To make the floors and walls smooth

C

These are easily available materials in that region

D

To make it water-resistant and work as an insulator

The correct pair showing percentage of total solids in cow-dung and night soil is Cow-dung Night Soil

A

1·4 - 1·8% 3-5%

B

1·0- 2% 2·5 - 4·5%

C

18 - 25% 11 – 15%

D

70 – 80% 82 – 88%

India's first gas exchange, the Indian Gas Exchange (IGX), was launched as a wholly owned subsidiary of Indian Energy Exchange. Which of the following statements are correct? 1. It is a digital trading platform that will allow buyers and sellers to trade both in the spot market and in the forward market for imported natural gas. 2. It will allow trade across three hubs - Dahej and Hazira in Gujarat and Kakinada in Andhra Pradesh. 3. Imported Liquified Natural Gas (LNG) will be regassified and sold to buyers through the exchange, removing the requirement for buyers and sellers to find each other. 4. Only inter-governmental trade in domestically produced natural gas is allowed at the gas exchange. Select the correct answer using the code given below:

A

Only 1 and 2

B

Only 1 and 3

C

Only 1, 2 and 3

D

1, 2, 3 and 4

Main constituent of the gas produced from a gobar gas plant is

A

CO₂

B

CH₄

C

H₂

D

CO

In a newly developed innovative idea brought up by CSIR in India, gas turbine exhaust gas are being utilized to convert feedwater into steam. Certain data of the experiment are as follows: mass flow rate of exhaust gas = 40 kg/hr, enthalpy of exhaust gas at the time of their exit from gas turbine is 600 kJ/kg, steam turbine output as measured by brake dynamometer = 60 hp-sec, thermal efficiency of steam power plant is 0.25, efficiency of exhaust gas in converting feedwater into steam is taken as 50%. Find the enthalpy of exhaust gas remaining after they generate steam from feedwater?

A

350.0KJ/Kg

B

241.2KJ/Kg

C

112.45KJ/Kg

D

512.56KJ/Kg

Consider the following statements.
1. Methane is also known asmarsh gas.
2. The main component of the natural gas is methane.
3. The main component of the gobar gas is methane.
Which of the statements given above are correct?

A

1 and 2

B

1 and 3

C

2 and 3

D

1, 2 and 3

Gobar gas is produced by the __________ of cown dung.

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