Maximum permissible air velocity in pipelines is about __________ metre/second.

Question

Maximum permissible air velocity in pipelines is about __________ metre/second.

A. 5

B. 10

C. 20

D. 40

Correct Answer :

B. 10

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Which of the following is not an ore of copper?

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Lead pencil contains

C. Lead

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Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used?

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Which of the following materials has the poorest electrical conductivity?

A. Carbon

C. Silver

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Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.

A. 0.8

B. 7.8

C. 200

D. 10000

Discuss this answer

Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

Discuss this answer

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

B. Tin

C. Lead

Discuss this answer

The order of a chemical reaction

Discuss this answer

Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

Discuss this answer

The most important function of a washer is to provide bearing area and washers are normally specified by their hole diameters. The diameter of washer as compared to the nut is

A. More

B. Less

C. Same

Discuss this answer

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

Discuss this answer

Diamagnetic materials

Discuss this answer

Density in the solid state is slightly less than that in its liquid state, in case of

B. Water

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

According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point is

A. 180°

B. 212°

C. 32°

D. 273°

Discuss this answer

Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.

B. Tool

C. Alloy

Discuss this answer

Pressure exerted by a liquid depends upon its

Discuss this answer

__________ is not a heat treatment process.

Discuss this answer

Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be

A. 5

B. 1.25

C. 2.5

D. 3.75

Discuss this answer

Most important property of steels for use in automobile bodies is the

Discuss this answer

The starting of a car takes time in winter, because the

Discuss this answer

Which of the following is an ore dressing operation?

Discuss this answer

An oxidation process is accompanied with decrease in the

Discuss this answer

As the fluid flow rate increases, the float of the Rotameter

Discuss this answer

Which of the following is not used as a bearing material?

Discuss this answer

A material is capable of resisting softening at high temperature, because of its property termed as

D. Creep

Discuss this answer

About __________ ton of coke is required in a cupola to produce one ton of casting.

A. 0.03

B. 0.3

C. 0.8

D. 1.5

Discuss this answer

Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called

Discuss this answer

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

Discuss this answer

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg)?

Discuss this answer

Answer 1

A. Cryolite

Answer 2

B. Azurite

Answer 3

C. Chalcopyrite

Answer 4

D. Malachite

Answer 5

A. Graphite

Answer 6

B. Lead sulphide

Answer 7

D. Both (B) & (C)

Answer 8

A. Vapour locking

Answer 9

B. Hot starting

Answer 10

C. Spark plug fouling

Answer 11

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

Answer 12

B. Aluminium

Answer 13

D. Stainless steel

Answer 14

A. Re^0.5, Re^0.8

Answer 15

B. Re^0.8, Re^-0.5

Answer 16

C. Re^0.8, Re^0.5

Answer 17

D. Re^-0.8, Re^0.5

Answer 18

A. Aluminium

Answer 19

D. Both (B) & (C)

Answer 20

A. Can be determined only experimentally

Answer 21

B. Can be determined from the stoichiometry of the reaction

Answer 22

C. Cannot be zero

Answer 23

D. Can be fractional

Answer 24

A. Preloaded spring

Answer 25

B. Piezoelectric

Answer 26

C. Bonded strain gauge

Answer 27

D. None of these

Answer 28

D. More but less than the diameter of bolt

Answer 29

A. Pure oxygen has been used for combustion

Answer 30

B. Nitrogen percentage in the fuel is very high

Answer 31

C. Excess air has been used for combustion

Answer 32

D. Hydrogen is not present in the fuel

Answer 33

A. Are magnetised by eddy currents only

Answer 34

B. Are non-magnetic and cannot be magnetised

Answer 35

C. Are magnetised in direction opposite to the magnetic field

Answer 36

D. Can be magnetised in one direction only

Answer 37

A. Carbon dioxide

Answer 38

C. Mercury

Answer 39

D. None of these

Answer 40

A. Cresylic acid

Answer 41

B. Xanthaies

Answer 42

C. Pine oil

Answer 43

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

Answer 44

A. Wrought

Answer 45

D. Plain carbon

Answer 46

A. Surface tension

Answer 47

B. Density

Answer 48

C. Viscosity

Answer 49

D. Buoyancy

Answer 50

A. Cyaniding

Answer 51

B. Parkerizing

Answer 52

C. Austempering

Answer 53

D. Martempering

Answer 54

A. Formability

Answer 55

B. Yield strength

Answer 56

C. Toughness

Answer 57

D. Resilience

Answer 58

A. Octane number of fuel is decreased

Answer 59

B. Fuel supply for ignition is not sufficient

Answer 60

C. Vaporisation of the fuel is decreased

Answer 61

D. Pour point of fuel decreases

Answer 62

A. Classification

Answer 63

B. Smelting

Answer 64

C. Roasting

Answer 65

D. None of these

Answer 66

A. Number of electrons

Answer 67

B. Oxidation number

Answer 68

C. Number of ions

Answer 69

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

Answer 70

A. Rises in the tube

Answer 71

B. Rotates at higher speed

Answer 72

C. Rotates at lower speed

Answer 73

D. Drops down in the tube

Answer 74

A. Copper-lead alloys

Answer 75

B. Babbitts

Answer 76

C. Bronzes

Answer 77

D. Cermets

Answer 78

A. Hot temper

Answer 79

B. Hot hardness

Answer 80

C. Fatigue

Answer 81

A. Tempering

Answer 82

B. Hardening

Answer 83

C. Annealing

Answer 84

D. Normalising

Answer 85

A. Decreases

Answer 86

B. Increases

Answer 87

C. Remain same

Answer 88

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

Answer 89

A. Propane and acetylene

Answer 90

B. Propane and LPG

Answer 91

C. Sewage gas and gobar gas

Answer 92

D. B.F gas and coke oven gas

Maximum permissible air velocity in pipelines is about __________ metre/second.

Correct Answer :

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Related Questions

Which of the following is not an ore of copper?

Lead pencil contains

Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used?

Which of the following materials has the poorest electrical conductivity?

Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.

Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

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

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Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

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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?

According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point is

Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.

Pressure exerted by a liquid depends upon its

__________ is not a heat treatment process.

Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be

Most important property of steels for use in automobile bodies is the

The starting of a car takes time in winter, because the

Which of the following is an ore dressing operation?

An oxidation process is accompanied with decrease in the

As the fluid flow rate increases, the float of the Rotameter

Which of the following is not used as a bearing material?

A material is capable of resisting softening at high temperature, because of its property termed as

About __________ ton of coke is required in a cupola to produce one ton of casting.

Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called

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

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg)?

Also checkout

Maximum permissible air velocity in pipelines is about __________ metre/second.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following is not an ore of copper?

Lead pencil contains

Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used?

Which of the following materials has the poorest electrical conductivity?

Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.

Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

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

The order of a chemical reaction

Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

The most important function of a washer is to provide bearing area and washers are normally specified by their hole diameters. The diameter of washer as compared to the nut is

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO2 = 12%, O2 = 8%, CO = nil, N2 = 80%. This flue gas composition indicates that

Diamagnetic materials

Density in the solid state is slightly less than that in its liquid state, in case of

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?

According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point is

Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.

Pressure exerted by a liquid depends upon its

__________ is not a heat treatment process.

Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be

Most important property of steels for use in automobile bodies is the

The starting of a car takes time in winter, because the

Which of the following is an ore dressing operation?

An oxidation process is accompanied with decrease in the

As the fluid flow rate increases, the float of the Rotameter

Which of the following is not used as a bearing material?

A material is capable of resisting softening at high temperature, because of its property termed as

About __________ ton of coke is required in a cupola to produce one ton of casting.

Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called

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

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg)?

Also checkout

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg)?