For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is

Question

For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is

A. 1 kg

B. 4/3 kg

C. 8/3 kg

D. 2 kg

Correct Answer :

B. 4/3 kg

Share this question with your friends

Show all Steam Boilers, Engines, Nozzles & Turbines MCQ

Comment

In a single acting steam engine

Discuss this answer

The temperature of flue gases at air heater outlet should be

A. 100°C

Discuss this answer

The ratio of the useful heat drop to the isentropic heat drop is called

Discuss this answer

The ratio of heat utilised to produce steam and the heat liberated in furnace is known as

Discuss this answer

For water, at pressures below atmospheric;

Discuss this answer

The state of vapour under saturation condition is described by

Discuss this answer

Lancashire boiler is

Discuss this answer

A stage, in reaction turbine, is represented by

Discuss this answer

By compounding the expansion of steam in two or more cylinders, the length of stroke

Discuss this answer

The turbine blades are

C. Curved

Discuss this answer

Which of the following gases has the highest calorific value?

Discuss this answer

The cylindrical shell of a Lancashire boiler has diameter from

Discuss this answer

The efficiency of the plant __________ with the mechanical draught.

Discuss this answer

Which of the following is a water tube boiler?

Discuss this answer

The maximum heat loss is a boiler occurs due to

Discuss this answer

In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.

Discuss this answer

A wet vapour can be completely specified by

Discuss this answer

The process of draining steam from the turbine, at certain points during its expansion and using this steam for heating the feed water in feed water heaters and then supplying it to the boiler is known as

Discuss this answer

In a reaction turbine when the degree of reaction is zero, then there is

Discuss this answer

The indicated thermal efficiency is defined as the

Discuss this answer

The difference of supersaturated temperature and saturation temperature at that pressure is called

Discuss this answer

On Mollier chart, flow through turbine is represented by

Discuss this answer

The coal requirement per kW hour generation in the thermal power plant is of the order of

Discuss this answer

Steam turbines may be classified according to

Discuss this answer

The reheat factor depends upon

Discuss this answer

At which pressure the properties of water and steam become identical

Discuss this answer

An air preheater

Discuss this answer

While steam expands in turbines, theoretically the entropy

Discuss this answer

The high pressure boiler is one, which produces steam at a pressure more than

Discuss this answer

The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in metres, and T₁ = Absolute temperature of air outside the chimney in K)

Discuss this answer

Answer 1

A. The steam is admitted on one side of the piston and one working stroke is produced during each revolution of the crankshaft

Answer 2

B. The steam is admitted, in turn, on both sides of the piston and one working stroke is produced during each revolution of the crankshaft

Answer 3

C. The steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft

Answer 4

D. The steam is admitted, in turn, on both sides of the piston and two working strokes are produced during each revolution of the crankshaft

Answer 5

B. Above dew point temperature of flue gases

Answer 6

C. Below dew point temperature of flue gases

Answer 7

D. Less than wet bulb temperature of flue gases

Answer 8

A. Condenser efficiency

Answer 9

B. Nozzle efficiency

Answer 10

C. Boiler efficiency

Answer 11

D. Vacuum efficiency

Answer 12

A. Boiler effectiveness

Answer 13

B. Boiler evaporative capacity

Answer 14

C. Factor of evaporation

Answer 15

D. Boiler efficiency

Answer 16

A. Melting point rises slightly and boiling point drops markedly

Answer 17

B. Melting point rises markedly and boiling point drops markedly

Answer 18

C. Melting point drops slightly and boiling point drops markedly

Answer 19

D. Melting point drops slightly and boiling point drops slightly

Answer 20

A. Pressure alone

Answer 21

B. Temperature alone

Answer 22

C. Pressure and temperature

Answer 23

D. Pressure and dryness fraction

Answer 24

A. Stationary fire tube boiler

Answer 25

B. Internally fired boiler

Answer 26

C. Horizontal boiler

Answer 27

D. All of these

Answer 28

A. Number of casing

Answer 29

B. Number of entries of steam

Answer 30

C. Number of exits of steam

Answer 31

D. Each row of blades

Answer 32

A. Does not change

Answer 33

B. Increases

Answer 34

C. Decreases

Answer 35

D. None of these

Answer 36

A. Straight

Answer 37

B. Circular

Answer 38

D. None of these

Answer 39

A. Producer gas

Answer 40

B. Coal gas

Answer 41

C. Water gas

Answer 42

D. Blast furnace gas

Answer 43

A. 1 to 2 m

Answer 44

B. 1.25 to 2.25 m

Answer 45

C. 1.5 to 2.5 m

Answer 46

D. 1.75 to 2.75 m

Answer 47

A. Increases

Answer 48

B. Decreases

Answer 49

C. Remains constant

Answer 50

D. None of these

Answer 51

A. Lancashire boiler

Answer 52

B. Babcock and Wilcox boiler

Answer 53

C. Locomotive boiler

Answer 54

D. Cochran boiler

Answer 55

A. Moisture in fuel

Answer 56

B. Dry flue gases

Answer 57

C. Steam formation

Answer 58

D. Unburnt carbon

Answer 59

A. Equal to

Answer 60

B. Less than

Answer 61

C. More than

Answer 62

D. None of these

Answer 63

A. Pressure only

Answer 64

B. Temperature only

Answer 65

C. Dryness fraction only

Answer 66

D. Pressure and dryness fraction

Answer 67

A. Regenerative heating

Answer 68

B. Reheating of steam

Answer 69

C. Bleeding

Answer 70

D. None of these

Answer 71

A. No heat drop in moving blades

Answer 72

B. No heat drop in fixed blades

Answer 73

C. Maximum heat drop in moving blades

Answer 74

D. Maximum heat drop in fixed blades

Answer 75

A. Ratio of thermal efficiency to the Rankine efficiency

Answer 76

B. Ratio of brake power to the indicated power

Answer 77

C. Ratio of heat equivalent to indicated power to the energy supplied in steam

Answer 78

D. Product of thermal efficiency and Rankine efficiency

Answer 79

A. Degree of super-saturation

Answer 80

B. Degree of superheat

Answer 81

C. Degree of under-cooling

Answer 82

D. None of these

Answer 83

A. Horizontal straight line

Answer 84

B. Vertical straight line

Answer 85

C. Straight inclined line

Answer 86

D. Curved line

Answer 87

A. 0.1 to 0.2 kg

Answer 88

B. 0.2 to 0.4 kg

Answer 89

C. 0.6 to 0.8 kg

Answer 90

D. 1.0 to 1.5 kg

Answer 91

A. Direction of steam flow

Answer 92

B. Number of stages

Answer 93

C. Mode of steam action

Answer 94

D. All of these

Answer 95

A. Initial pressure and superheat

Answer 96

B. Exit pressure

Answer 97

C. Turbine stage efficiency

Answer 98

D. All of these

Answer 99

A. 0.1 kg/cm²

Answer 100

B. 1 kg/cm²

Answer 101

C. 100 kg/cm²

Answer 102

D. 225.6 kg/cm²

Answer 103

A. Increases evaporative capacity of the boiler

Answer 104

B. Increases the efficiency of the boiler

Answer 105

C. Enables low grade fuel to be burnt

Answer 106

D. All of the above

Answer 107

A. Remains constant

Answer 108

B. Increases

Answer 109

C. Decreases

Answer 110

D. Behaves unpredictably

Answer 111

A. Atmospheric pressure

Answer 112

B. 5 kg/cm²

Answer 113

C. 10 kg/cm²

Answer 114

D. 7580 kg/cm²

Answer 115

A. T₁ /88.25H

Answer 116

B. 88.25H/T₁

Answer 117

C. T₁ /176.5H

Answer 118

D. 176.5H/T₁

For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is

Correct Answer :

Show all Steam Boilers, Engines, Nozzles & Turbines MCQ

Related Questions

In a single acting steam engine

The temperature of flue gases at air heater outlet should be

The ratio of the useful heat drop to the isentropic heat drop is called

The ratio of heat utilised to produce steam and the heat liberated in furnace is known as

For water, at pressures below atmospheric;

The state of vapour under saturation condition is described by

Lancashire boiler is

A stage, in reaction turbine, is represented by

By compounding the expansion of steam in two or more cylinders, the length of stroke

The turbine blades are

Which of the following gases has the highest calorific value?

The cylindrical shell of a Lancashire boiler has diameter from

The efficiency of the plant __________ with the mechanical draught.

Which of the following is a water tube boiler?

The maximum heat loss is a boiler occurs due to

In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.

A wet vapour can be completely specified by

The process of draining steam from the turbine, at certain points during its expansion and using this steam for heating the feed water in feed water heaters and then supplying it to the boiler is known as

In a reaction turbine when the degree of reaction is zero, then there is

The indicated thermal efficiency is defined as the

The difference of supersaturated temperature and saturation temperature at that pressure is called

On Mollier chart, flow through turbine is represented by

The coal requirement per kW hour generation in the thermal power plant is of the order of

Steam turbines may be classified according to

The reheat factor depends upon

At which pressure the properties of water and steam become identical

An air preheater

While steam expands in turbines, theoretically the entropy

The high pressure boiler is one, which produces steam at a pressure more than

The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in metres, and T₁ = Absolute temperature of air outside the chimney in K)

Also checkout

For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is

Correct Answer :

Show all Steam Boilers, Engines, Nozzles & Turbines MCQ

Related Questions

In a single acting steam engine

The temperature of flue gases at air heater outlet should be

The ratio of the useful heat drop to the isentropic heat drop is called

The ratio of heat utilised to produce steam and the heat liberated in furnace is known as

For water, at pressures below atmospheric;

The state of vapour under saturation condition is described by

Lancashire boiler is

A stage, in reaction turbine, is represented by

By compounding the expansion of steam in two or more cylinders, the length of stroke

The turbine blades are

Which of the following gases has the highest calorific value?

The cylindrical shell of a Lancashire boiler has diameter from

The efficiency of the plant __________ with the mechanical draught.

Which of the following is a water tube boiler?

The maximum heat loss is a boiler occurs due to

In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.

A wet vapour can be completely specified by

The process of draining steam from the turbine, at certain points during its expansion and using this steam for heating the feed water in feed water heaters and then supplying it to the boiler is known as

In a reaction turbine when the degree of reaction is zero, then there is

The indicated thermal efficiency is defined as the

The difference of supersaturated temperature and saturation temperature at that pressure is called

On Mollier chart, flow through turbine is represented by

The coal requirement per kW hour generation in the thermal power plant is of the order of

Steam turbines may be classified according to

The reheat factor depends upon

At which pressure the properties of water and steam become identical

An air preheater

While steam expands in turbines, theoretically the entropy

The high pressure boiler is one, which produces steam at a pressure more than

The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in metres, and T1 = Absolute temperature of air outside the chimney in K)

Also checkout

The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in metres, and T₁ = Absolute temperature of air outside the chimney in K)