Bomb calorimeter is used to determine

The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to

A

Minimise its corrosion

B

Avoid radiation heat loss

C

Make it look attractive

D

None of these

Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm.

A

3-5

B

25-30

C

60-65

D

95-100

The 'bomb' in the bomb calorimeter is made of

A

Molybdenum stainless steel

B

Mild steel

C

High silicon iron (14% Si)

D

Copper

Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.)

A

GCV at constant pressure

B

GCV at constant volume

C

NCV at constant pressure

D

NCV at constant volume

Bomb calorimeter can be used to determine the __________ of the coal.

A

Sulphur content

B

Calorific value

C

Both A & B

D

Neither A nor B

Bomb calorimeter is used for the determination of calorific value of the __________ fuels.

A

Gaseous

B

Solid

C

Liquid

D

Both B and C

Calorific value as determined by bomb calorimeter is the

A

Higher calorific value at constant volume

B

Gross calorific value at constant pressure

C

Lower calorific value at constant pressure

D

Net calorific value at constant volume

During its calorific value determination by bomb calorimeter, coal is combusted by

A

Air

B

Oxygen

C

Oxygen enriched air

D

None of these

Junker's calorimeter is used to determine the calorific value of

A

Pulverised coal

B

Gaseous fuels

C

Fuel oil

D

None of these

__________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low.

A

Bucket

B

Throttling

C

Separating

D

A combination of separating & throttling

Bomb calorimeter is used to determine

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