Air-petrol ratio in an automotive petrol engine is around

Question

Air-petrol ratio in an automotive petrol engine is around

A. 14 : 1

B. 22 : 1

C. 25 : 1

D. 4 : 1

Correct Answer :

A. 14 : 1

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Mild steel has __________ crystal lattice structure.

D. Cubic

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Upto the critical radius of insulation, added insulation, will

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The best lubricants for a machine working at high temperature & load is

A. Grease

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Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is

A. Black

C. Green

D. Yellow

Discuss this answer

Electrometallurgy is not involved in the extraction of __________ from its ore.

B. Tin

C. Lead

Discuss this answer

Basic open hearth furnace (BOF) is not used for producing __________ steel.

A. Killed

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Wavelength of radiation emitted by a body depends on the __________ of its surface.

B. Area

C. Nature

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The burnout heat flux in the nucleate boiling regime is not a function of the

Discuss this answer

Cold chisels hammers are made of

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Oxygen cylinders used for autogenous (cutting/welding) purposes are

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Which of the following has the least value of ultimate tensile strength (UTS)?

Discuss this answer

Brazing filler metal used for joining steel plates

Discuss this answer

In inventory control theory, the economic order quantity (EOQ) is the

Discuss this answer

Galvanic corrosion cannot be prevented by

Discuss this answer

Routing in production, planning & control is concerned with the

Discuss this answer

Lap joints are preferred over butt joints in soldering/brazing, because these joints are

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__________ property of steel increases by addition of large amount of silicon in it.

Discuss this answer

Non-ferrous alloys used for making cutting tools need not have high

Discuss this answer

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

A. 2³

B. 2^3/2

C. 2^5/2

D. 2^1/3

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__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

C. Impact

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Which of the following rays has the least wavelength?

D. X-rays

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Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

Discuss this answer

Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (Cp/Cv) ρ = specific weight of the gas)

A. √T

B. 1/√P

C. √y

Discuss this answer

Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

C. Nickel

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Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Discuss this answer

Wrought iron is never shaped by

Discuss this answer

Suitability of steel for its use in cable is judged by its strength in

D. Shear

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Colour comparator is used to measure the

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For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship similar to that expressed by the pressure volume plot?

Discuss this answer

For dynamic strain measurement, the Wheatstone bridge used is of __________ type.

Discuss this answer

Answer 1

A. Face centred cubic (fcc)

Answer 2

B. Body centred cubic (bcc)

Answer 3

C. Orthorhombic

Answer 4

A. Increase the heat loss

Answer 5

B. Decrease heat loss and will have no effect beyond that

Answer 6

C. Decrease heat flux

Answer 7

D. Reduce convection heat loss compared to conduction heat less

Answer 8

B. Solid lubricant

Answer 9

C. Animal oils

Answer 10

D. Mineral oils

Answer 11

B. Silver grey

Answer 12

A. Aluminium

Answer 13

D. Both (B) & (C)

Answer 14

B. Rimming

Answer 15

C. High alloy

Answer 16

D. None of these

Answer 17

A. Temperature

Answer 18

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

Answer 19

A. Liquid density

Answer 20

B. Vapour density

Answer 21

C. Temperature difference

Answer 22

D. Heat of evaporation

Answer 23

A. High speed steel

Answer 24

B. High carbon steel

Answer 25

C. Forged steel

Answer 26

D. Mild steel

Answer 27

A. Seamless & made of steel

Answer 28

B. Heat treated before use

Answer 29

C. Made by sand casting

Answer 30

D. Welded steel cylinders

Answer 31

A. Medium carbon steel

Answer 32

B. High carbon steel

Answer 33

C. Cast iron

Answer 34

D. Wrought iron

Answer 35

A. Melts below the melting points of base metals

Answer 36

B. Melts below 300°C

Answer 37

C. Is copper phosphorous alloy

Answer 38

D. Is copper

Answer 39

A. Lot size corresponding to break even analysis

Answer 40

B. Average level of inventory

Answer 41

C. Optimum lot size

Answer 42

D. None of these

Answer 43

A. Cathodic protection

Answer 44

B. Anodic protection

Answer 45

C. Usage of largest possible anodic area

Answer 46

D. Any one of these

Answer 47

A. Sequence of operation to be performed

Answer 48

B. Progress of work performed

Answer 49

C. Authorisation of work to be performed

Answer 50

D. Balancing of load on machines

Answer 51

A. Weaker in tension but stronger in shear

Answer 52

B. Weaker in shear but stronger in tension

Answer 53

C. Stronger in both shear and tension

Answer 54

D. The lap joints are easily made

Answer 55

A. Mechanical

Answer 56

B. Machining

Answer 57

C. Magnetic

Answer 58

D. Refractory

Answer 59

A. Abrasion resistance

Answer 60

B. Toughness

Answer 61

C. Red hardness

Answer 62

D. Cutting speed

Answer 63

A. Tensile

Answer 64

B. Fatigue

Answer 65

D. None of these

Answer 66

A. Ultraviolet rays

Answer 67

B. Infrared rays

Answer 68

C. Cosmic rays

Answer 69

A. Retained austenite

Answer 70

B. Martensite formation

Answer 71

C. Relatively high sulphur content in the base metal

Answer 72

D. Sufficient hydrogen present in the welding arc

Answer 73

D. 1/√ρ

Answer 74

A. Manganese

Answer 75

B. Silicon

Answer 76

D. Chromium

Answer 77

A. Cementite

Answer 78

B. Austenite

Answer 79

C. Martensite

Answer 80

D. Pearlite

Answer 81

A. Casting

Answer 82

B. Cold working

Answer 83

C. Forging

Answer 84

D. Welding

Answer 85

A. Tension

Answer 86

B. Compression

Answer 87

C. Torsion

Answer 88

A. pH value

Answer 89

B. Electrode potential

Answer 90

C. Colour intensity

Answer 91

D. None of these

Answer 92

A. Temperature - entropy

Answer 93

B. Temperature - pressure

Answer 94

C. Enthalpy - entropy

Answer 95

D. Enthalpy-pressure

Answer 96

A. Voltage sensitive null

Answer 97

B. Voltage sensitive deflected

Answer 98

C. Current sensitive deflected

Answer 99

D. None of these

Air-petrol ratio in an automotive petrol engine is around

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Mild steel has __________ crystal lattice structure.

Upto the critical radius of insulation, added insulation, will

The best lubricants for a machine working at high temperature & load is

Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is

Electrometallurgy is not involved in the extraction of __________ from its ore.

Basic open hearth furnace (BOF) is not used for producing __________ steel.

Wavelength of radiation emitted by a body depends on the __________ of its surface.

The burnout heat flux in the nucleate boiling regime is not a function of the

Cold chisels hammers are made of

Oxygen cylinders used for autogenous (cutting/welding) purposes are

Which of the following has the least value of ultimate tensile strength (UTS)?

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In inventory control theory, the economic order quantity (EOQ) is the

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Non-ferrous alloys used for making cutting tools need not have high

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

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Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

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Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Wrought iron is never shaped by

Suitability of steel for its use in cable is judged by its strength in

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For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship similar to that expressed by the pressure volume plot?

For dynamic strain measurement, the Wheatstone bridge used is of __________ type.

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