Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

Question

Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

A. 746

B. 3000

C. 1000

D. 550

Correct Answer :

B. 3000

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Out of the following, the alloy which has equal percentage of constituents, is

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A high pressure boiler generates steam at a pressure greater than __________ kg/cm².

A. 10

B. 30

C. 50

D. 80

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The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.

B. Shear

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Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)

A. H

B. H/2

C. H/4

D. H/6

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Aluminium is extracted from

C. Galena

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Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

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The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

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Maximum hardenability of steel depends upon its

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The pressure outside a bubble/droplet of liquid is __________ the internal pressure.

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Electrometallurgical methods of metal extraction is normally used for those metals

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Which of the following heat treatment processes is usually applied to castings?

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For an ideal gas, C_p - C_v is

A. R

B. -R

C. 0

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Routing in production, planning & control is concerned with the

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Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

A. V/A

B. V/A²

C. V²/A

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Ammonia gas can be dried by

A. PCl₅

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In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be

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The joint for soldering is supported by binding wire made of

B. Copper

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The normal stress is the same in all directions at a point in a fluid, only when the fluid

Discuss this answer

Pick out the wrong statement.

Discuss this answer

Pick out the correct statement.

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The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then

Discuss this answer

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

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Answer 1

A. White metal

Answer 2

B. Gun metal

Answer 3

C. Duralumin

Answer 4

D. Constantan

Answer 5

A. Natural

Answer 6

B. Neoprene

Answer 7

C. Butadiene

Answer 8

D. Nitrile

Answer 9

A. Drain out water and sludge from the boiler during repair

Answer 10

B. Put off fire in the furnace when water level in the boiler falls to unsafe limit

Answer 11

C. Guard the boiler in case of abnormal rise in steam pressure

Answer 12

D. All (A), (B) & (C)

Answer 13

A. 1 kgf/m²

Answer 14

B. 10 kgf/m²

Answer 15

C. 10 kgf/mm²

Answer 16

D. 1 kgf/mm²

Answer 17

A. Tension

Answer 18

C. Compression

Answer 19

D. Bending & tension

Answer 20

A. Decreases

Answer 21

B. Increases

Answer 22

C. Remain same

Answer 23

D. May increase or decrease; depends on the altitude where snow melts

Answer 24

A. Iron ore & coke

Answer 25

B. Iron ore, coke & air

Answer 26

C. Limestone, coke & iron ore

Answer 27

D. Limestone, sand & iron ore

Answer 28

A. Normalising

Answer 29

B. Tempering

Answer 30

C. Annealing

Answer 31

D. Carburising

Answer 32

A. Degradation of energy

Answer 33

B. Decrease in system pressure

Answer 34

C. Increase in the availability of energy

Answer 35

D. Increase in the temperature

Answer 36

A. Decreases

Answer 37

B. Increases

Answer 38

C. Remain constant

Answer 39

D. Shows no systematic variation

Answer 40

A. Chalcocite

Answer 41

B. Bauxite

Answer 42

D. None of these

Answer 43

A. Wet bulb

Answer 44

B. Dry bulb

Answer 45

C. Saturation

Answer 46

D. Dew point

Answer 47

A. Equal to

Answer 48

B. Greater than

Answer 49

C. Less than

Answer 50

D. Either (A), (B) or (C); depends on the size of atom

Answer 51

A. Chemical composition

Answer 52

B. Carbon content

Answer 53

C. Grain size

Answer 54

D. Alloying elements content

Answer 55

A. Greater than

Answer 56

B. Less than

Answer 57

C. Equal to

Answer 58

D. Unpredictable; depends on the bubble size

Answer 59

A. Whose oxide/ore is not reduced by carbon

Answer 60

B. Which fall in the category of alkali & alkaline earth metals

Answer 61

C. Which stands higher in the electrochemical series of the metal

Answer 62

D. All (A), (B) & (C)

Answer 63

A. Tempering

Answer 64

B. Annealing

Answer 65

C. Normalising

Answer 66

D. Carburising

Answer 67

D. (3/2) R

Answer 68

A. Sequence of operation to be performed

Answer 69

B. Progress of work performed

Answer 70

C. Authorisation of work to be performed

Answer 71

D. Balancing of load on machines

Answer 72

D. V²/A²

Answer 73

B. Quick lime

Answer 74

C. CaCl₂

Answer 75

D. Concentrated H₂SO₄

Answer 76

A. ΔQ = 0, ΔS=0

Answer 77

B. ΔQ = 0, ΔS = +ve

Answer 78

C. ΔQ = 0, ΔS = -ve

Answer 79

D. ΔQ = +ve, ΔS= +ve

Answer 80

A. Mild steel

Answer 81

C. Soft iron

Answer 82

D. Stainless steel

Answer 83

A. Is at rest & has zero viscosity

Answer 84

B. Is frictionless

Answer 85

C. Fluid layer has no motion relative to an adjacent layer of fluid

Answer 86

D. is incompressible & frictionless

Answer 87

A. Geothermal energy is a non-conventional source of energy

Answer 88

B. Mass is converted into energy in both nuclear fission & fusion reaction

Answer 89

C. Inhalation of mercury vapour is not harmful for human beings

Answer 90

D. Inhalation of arsenic causes cancer

Answer 91

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

Answer 92

B. Annealing of steel hardens it slightly

Answer 93

C. Normalising of a material induces stresses

Answer 94

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

Answer 95

A. Wet bulb temperature=dry bulb temperature

Answer 96

B. Wet bulb temperature=dew point temperature

Answer 97

C. Saturation temperature=dew point temperature

Answer 98

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

Answer 99

A. Liquid density

Answer 100

B. Vapour density

Answer 101

C. Temperature difference

Answer 102

D. Heat of evaporation

Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

Correct Answer :

Show all Chemical Engineering Basics MCQ

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Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Out of the following, the alloy which has equal percentage of constituents, is

A high pressure boiler generates steam at a pressure greater than __________ kg/cm2.

__________ rubber is generally used for making 'O' rings used for vacuum sealings.

Function of fusible plug in a boiler is to

Boiler draught of 10 mm water column is equivalent to

The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.

The atmospheric temperature during melting of ice/snow (in the atmosphere)

Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)

The main charge in blast furnace is usually

Softening of hardened steel is done by its

Increase in the entropy of a system represents the

When the wavelength of incident X-rays increases, the angle of diffraction

Aluminium is extracted from

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

Maximum hardenability of steel depends upon its

The pressure outside a bubble/droplet of liquid is __________ the internal pressure.

Electrometallurgical methods of metal extraction is normally used for those metals

Which of the following heat treatment processes is usually applied to castings?

For an ideal gas, Cp - Cv is

Routing in production, planning & control is concerned with the

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

Ammonia gas can be dried by

In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be

The joint for soldering is supported by binding wire made of

The normal stress is the same in all directions at a point in a fluid, only when the fluid

Pick out the wrong statement.

Pick out the correct statement.

The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then

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

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