Air-petrol ratio for maximum power generation in spark ignition engine is about

Question

Air-petrol ratio for maximum power generation in spark ignition engine is about

A. 6 : 1

B. 12 : 1

C. 18 : 1

D. 24 : 1

Correct Answer :

B. 12 : 1

Share this question with your friends

Show all Chemical Engineering Basics MCQ

Comment

Silicon percentage in silicon steel used for electrical equipments is about

A. 1

B. 4.0

C. 8

D. 14

Discuss this answer

Electrostatic separation of minerals from each other is based on their differences in the following property.

Discuss this answer

Enzymes belong to the category of

D. Fats

Discuss this answer

A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

Discuss this answer

What happens, when SO₂ is passed through a solution of H2S in water?

Discuss this answer

Particle nature of cathode rays is proved due to the fact that they

Discuss this answer

The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

A. 0.2

B. 0.4

C. 0.6

D. 0.8

Discuss this answer

Pick out the correct statement.

Discuss this answer

__________ property of a material is determined by the Herbert Pendulum device.

Discuss this answer

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

Discuss this answer

Super conduction in metals is observed at a temperature of __________ °K.

A. <100

B. >100

Discuss this answer

Shrinkage allowance on pattern is provided to compensate for shrinkage when the

Discuss this answer

Drossing is a __________ operation.

Discuss this answer

Air-petrol ratio for maximum power generation in spark ignition engine is about

A. 6 : 1

B. 12 : 1

C. 18 : 1

D. 24 : 1

Discuss this answer

With increase in impurities in metals, their corrosion resistances

Discuss this answer

Which of the following can be manufactured using powder metallurgy techniques?

Discuss this answer

Nusselt number/Biot number varies

Discuss this answer

The unit of gc is

Discuss this answer

Pick out the wrong statement.

Discuss this answer

Transformer cores are normally made from

Discuss this answer

Maximum permissible sulphur content in steel is __________ percent.

A. 0.015

B. 0.055

C. 0.505

D. 0.805

Discuss this answer

Pearlite comprises of

Discuss this answer

Which of the following is prone to cup and cone fracture?

Discuss this answer

Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

Discuss this answer

__________ the exhaust gas is an indication of the incomplete combustion of fuel.

Discuss this answer

Galvanic corrosion cannot be prevented by

Discuss this answer

The ratio of the shear stress to the principal stress on a principal plane is

A. 0

B. 1

C. 1/2

D. 1/3

Discuss this answer

Compressed dry air is used as the cutting fluid, while machining

A. Steel

Discuss this answer

Consideration of the creep is the most important in case of the

Discuss this answer

Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.

A. Bomb

D. Boy's

Discuss this answer

Answer 1

A. Densities

Answer 2

B. Magnetic permeabilities

Answer 3

C. Electrical conductivities

Answer 4

D. Hardness

Answer 5

A. Proteins

Answer 6

B. Carbohydrates

Answer 7

C. Vitamins

Answer 8

A. √(Particle diameter)

Answer 9

B. Particle diameter

Answer 10

C. (Particle diameter)²

Answer 11

D. (Particle diameter)³

Answer 12

A. Precipitation of sulphur takes place

Answer 13

B. H₂SO₃ is formed

Answer 14

C. Oleum is formed

Answer 15

D. None of these

Answer 16

A. Travel in a straight line

Answer 17

B. Get deflected by magnetic electric field

Answer 18

C. Produce fluorescence

Answer 19

D. Heat the exposed material

Answer 20

A. Hot worked materials are subjected to annealing to remove internal stresses

Answer 21

B. Annealing of steel hardens it slightly

Answer 22

C. Normalising of a material induces stresses

Answer 23

D. Tempering of a material improves ductility & toughness but reduces hardness & brittleness

Answer 24

A. Hardness

Answer 25

B. Tensile

Answer 26

C. Toughness

Answer 27

D. Compressive

Answer 28

A. Cresylic acid

Answer 29

B. Xanthaies

Answer 30

C. Pine oil

Answer 31

D. All 'a' 'b' & 'c'

Answer 32

C. About 273

Answer 33

D. About 373

Answer 34

A. Metal changes from liquid state to solid state at freezing temperature

Answer 35

B. Solid phase temperature drops from freezing temperature to the room temperature

Answer 36

C. Liquid metal temperature drops from pouring temperature to room temperature

Answer 37

D. Liquid metal temperature drops from pouring temperature to freezing temperature

Answer 38

A. Smelting

Answer 39

B. Dressing

Answer 40

C. Roasting

Answer 41

D. Dressing

Answer 42

A. Increase

Answer 43

B. Decrease

Answer 44

C. Remain same

Answer 45

D. May increase or decrease; depending on the type of metal

Answer 46

A. Brake linings

Answer 47

B. Bearings

Answer 48

C. Carbide tool tips

Answer 49

D. All 'a', 'b' and 'c'

Answer 50

A. Inversely with thermal conductivity

Answer 51

B. Directly with heat transfer co-efficient

Answer 52

C. Directly with thermal conductivity

Answer 53

D. Inversely with the dimension of the solid

Answer 54

A. lb_m/lb_f. ft/sec²

Answer 55

B. lb_f/lb_m. ft/sec²

Answer 56

C. ft/sec²

Answer 57

D. lb_m/lb_f. sec²/ft

Answer 58

A. Complete unity of command exists in a line organisation

Answer 59

B. Line organisation is net suitable for expansion and growth of an industry

Answer 60

C. In line and staff organisation, line executes and staff directs

Answer 61

D. None of these

Answer 62

A. Soft ferrites

Answer 63

B. High purity iron

Answer 64

C. Grain oriented Fe-Si alloy

Answer 65

D. Al-Ni-Co alloy

Answer 66

A. 87% cementite & 13% Fe

Answer 67

B. 87% ferrite & 13% cementite

Answer 68

C. 93.33% ferrite & 6.67% C

Answer 69

D. 87% ferrite & 13% C

Answer 70

A. Cast iron

Answer 71

B. Soft brass

Answer 72

C. Round specimen of ductile metal

Answer 73

D. Flat tensile specimen of ductile metal

Answer 74

A. Below the yield point

Answer 75

B. Above the yield point

Answer 76

C. Below the elastic limit

Answer 77

D. At the elastic limit

Answer 78

A. Low temperature of

Answer 79

B. High temperature of

Answer 80

C. High % of CO in

Answer 81

D. High % of CO₂ in

Answer 82

A. Cathodic protection

Answer 83

B. Anodic protection

Answer 84

C. Usage of largest possible anodic area

Answer 85

D. Any one of these

Answer 86

B. Cast iron

Answer 87

C. Aluminium

Answer 88

D. None of these

Answer 89

A. Blades of gas turbine

Answer 90

B. Piston of an I. C. engine

Answer 91

C. Flywheel of steam engine

Answer 92

D. Cycle chain

Answer 93

B. Throttling

Answer 94

C. Junker's

Air-petrol ratio for maximum power generation in spark ignition engine is about

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Silicon percentage in silicon steel used for electrical equipments is about

Electrostatic separation of minerals from each other is based on their differences in the following property.

Enzymes belong to the category of

A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

What happens, when SO₂ is passed through a solution of H2S in water?

Particle nature of cathode rays is proved due to the fact that they

The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

Pick out the correct statement.

__________ property of a material is determined by the Herbert Pendulum device.

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

Super conduction in metals is observed at a temperature of __________ °K.

Shrinkage allowance on pattern is provided to compensate for shrinkage when the

Drossing is a __________ operation.

Air-petrol ratio for maximum power generation in spark ignition engine is about

With increase in impurities in metals, their corrosion resistances

Which of the following can be manufactured using powder metallurgy techniques?

Nusselt number/Biot number varies

The unit of gc is

Pick out the wrong statement.

Transformer cores are normally made from

Maximum permissible sulphur content in steel is __________ percent.

Pearlite comprises of

Which of the following is prone to cup and cone fracture?

Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

__________ the exhaust gas is an indication of the incomplete combustion of fuel.

Galvanic corrosion cannot be prevented by

The ratio of the shear stress to the principal stress on a principal plane is

Compressed dry air is used as the cutting fluid, while machining

Consideration of the creep is the most important in case of the

Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.

Also checkout

Air-petrol ratio for maximum power generation in spark ignition engine is about

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Silicon percentage in silicon steel used for electrical equipments is about

Electrostatic separation of minerals from each other is based on their differences in the following property.

Enzymes belong to the category of

A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

What happens, when SO2 is passed through a solution of H2S in water?

Particle nature of cathode rays is proved due to the fact that they

The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

Pick out the correct statement.

__________ property of a material is determined by the Herbert Pendulum device.

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

Super conduction in metals is observed at a temperature of __________ °K.

Shrinkage allowance on pattern is provided to compensate for shrinkage when the

Drossing is a __________ operation.

Air-petrol ratio for maximum power generation in spark ignition engine is about

With increase in impurities in metals, their corrosion resistances

Which of the following can be manufactured using powder metallurgy techniques?

Nusselt number/Biot number varies

The unit of gc is

Pick out the wrong statement.

Transformer cores are normally made from

Maximum permissible sulphur content in steel is __________ percent.

Pearlite comprises of

Which of the following is prone to cup and cone fracture?

Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

__________ the exhaust gas is an indication of the incomplete combustion of fuel.

Galvanic corrosion cannot be prevented by

The ratio of the shear stress to the principal stress on a principal plane is

Compressed dry air is used as the cutting fluid, while machining

Consideration of the creep is the most important in case of the

Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.

Also checkout

What happens, when SO₂ is passed through a solution of H2S in water?