The substance used as a smoke screen in warfare is

Question

The substance used as a smoke screen in warfare is

A. C2H2

B. SiCl4

C. P2O5

D. PCl5

Correct Answer :

B. SiCl4

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Austempering process results in the formation of __________ structure.

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Euler number is defined as the ratio of inertia force to __________ force.

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Boiler tube size is specified by its thickness and __________ diameter.

B. Inside

C. Mean

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Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

Discuss this answer

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

A. 5

B. 10

C. 20

D. 40

Discuss this answer

Atomic __________ is a whole number for an element.

A. Number

B. Weight

C. Radius

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

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Starting friction is low in case of the __________ lubrication.

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The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

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All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.

C. Neon

D. Helium

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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

With decrease in the grain size of a material, its creep resistance

Discuss this answer

The following thermocouple may be used for measuring temperature upto 1873°K.

Discuss this answer

The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

A. Same

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Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is

A. Nickel

B. Cobalt

Discuss this answer

Ammonia gas can be dried by

A. PCl₅

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Steel is welded using the __________ flame.

Discuss this answer

'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel)

A. V

B. V/2

C. 2V

D. 3V

Discuss this answer

In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is __________ °C.

A. 20

B. 60

C. 120

D. ∞

Discuss this answer

Stainless steel is welded using

Discuss this answer

The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

Discuss this answer

The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is

Discuss this answer

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

A. Collar

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Dew point temperature always gives an indication of the __________ of the moist air.

Discuss this answer

Powder metallurgy process does not make metal powder by

Discuss this answer

If Reynolds number is greater than 1, then the

Discuss this answer

A material in which the atoms are arranged regularly in some directions but not in others, is termed as 'mesomorphous material'; an example of which is

A. Lead

B. Glass

C. Mica

D. Silver

Discuss this answer

Pressure required to increase the density of water by about 1% is __________ atmosphere.

A. 10

B. 50

C. 200

D. 1000

Discuss this answer

A dense structure of grinding wheel is not used for the

Discuss this answer

A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

A. 6

B. 18

C. 38

D. 52

Discuss this answer

Answer 1

A. Martensitic

Answer 2

B. Bainitic

Answer 3

C. Carburised

Answer 4

D. Stressed

Answer 5

A. Pressure

Answer 6

B. Elastic

Answer 7

C. Gravity

Answer 8

D. Viscous

Answer 9

A. Outside

Answer 10

D. None of these

Answer 11

A. Tensile strength

Answer 12

B. Compressive strength

Answer 13

C. Young's modulus

Answer 14

D. Thermal co-efficient of expansion

Answer 15

D. None of these

Answer 16

A. Mechanical

Answer 17

B. Machining

Answer 18

C. Magnetic

Answer 19

D. Refractory

Answer 20

A. Boundary

Answer 21

B. Hydrodynamic

Answer 22

C. Hydrostatic

Answer 23

D. Mixed/semi-fluid

Answer 24

A. Ambient

Answer 25

B. Dry bulb

Answer 26

C. Dew point

Answer 27

D. Wet bulb

Answer 28

A. Deuterium

Answer 29

B. Hydrogen

Answer 30

D. More but less than the diameter of bolt

Answer 31

A. Increases

Answer 32

B. Decreases

Answer 33

C. Remain constant

Answer 34

D. Either (A) or (B); depends on the material

Answer 35

A. Chromel-alumel

Answer 36

B. Copper-constantan

Answer 37

C. Platinum-platinum rhodium

Answer 38

D. Iron-constantan

Answer 39

B. Slightly less

Answer 40

C. Slightly more

Answer 41

D. Much more

Answer 42

C. Vanadium

Answer 43

D. Platinum

Answer 44

B. Quick lime

Answer 45

C. CaCl₂

Answer 46

D. Concentrated H₂SO₄

Answer 47

A. Carburising

Answer 48

B. Neutral

Answer 49

C. Oxidising

Answer 50

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

Answer 51

A. Oxy-acetylene flame

Answer 52

B. Oxy-hydrogen flame

Answer 53

C. Arc welding

Answer 54

D. Inert gas arc welding

Answer 55

A. 3171P_a

Answer 56

B. 3567P_a

Answer 57

C. 1.01 × 10⁵P_a

Answer 58

D. 5000P_a

Answer 59

A. Full annealing

Answer 60

B. Bright annealing

Answer 61

C. Patenting

Answer 62

D. None of these

Answer 63

B. Flanged

Answer 64

C. Bell and Spigot

Answer 65

D. Expansion

Answer 66

A. Dryness

Answer 67

B. Moisture content

Answer 68

C. Coolness

Answer 69

D. Latent heat

Answer 70

A. Atomisation

Answer 71

B. Grinding/milling

Answer 72

C. Hammering

Answer 73

D. Electrolytic deposition

Answer 74

A. Viscous force is larger than the inertia force

Answer 75

B. Inertia force is larger than the viscous force

Answer 76

C. Inertia force is larger than the surface tension force

Answer 77

D. Inertia force is larger than the gravitational force

Answer 78

A. Ductile material

Answer 79

B. Hard materials

Answer 80

C. Brittle materials

Answer 81

D. Finishing cuts

The substance used as a smoke screen in warfare is

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Austempering process results in the formation of __________ structure.

Euler number is defined as the ratio of inertia force to __________ force.

Boiler tube size is specified by its thickness and __________ diameter.

Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

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

Atomic __________ is a whole number for an element.

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

Starting friction is low in case of the __________ lubrication.

The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.

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

With decrease in the grain size of a material, its creep resistance

The following thermocouple may be used for measuring temperature upto 1873°K.

The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is

Ammonia gas can be dried by

Steel is welded using the __________ flame.

'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel)

In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is __________ °C.

Stainless steel is welded using

The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

Dew point temperature always gives an indication of the __________ of the moist air.

Powder metallurgy process does not make metal powder by

If Reynolds number is greater than 1, then the

A material in which the atoms are arranged regularly in some directions but not in others, is termed as 'mesomorphous material'; an example of which is

Pressure required to increase the density of water by about 1% is __________ atmosphere.

A dense structure of grinding wheel is not used for the

A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

Also checkout

The substance used as a smoke screen in warfare is

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Austempering process results in the formation of __________ structure.

Euler number is defined as the ratio of inertia force to __________ force.

Boiler tube size is specified by its thickness and __________ diameter.

Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

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

Atomic __________ is a whole number for an element.

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

Starting friction is low in case of the __________ lubrication.

The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.

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

With decrease in the grain size of a material, its creep resistance

The following thermocouple may be used for measuring temperature upto 1873°K.

The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is

Ammonia gas can be dried by

Steel is welded using the __________ flame.

'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel)

In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is __________ °C.

Stainless steel is welded using

The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

Dew point temperature always gives an indication of the __________ of the moist air.

Powder metallurgy process does not make metal powder by

If Reynolds number is greater than 1, then the

A material in which the atoms are arranged regularly in some directions but not in others, is termed as 'mesomorphous material'; an example of which is

Pressure required to increase the density of water by about 1% is __________ atmosphere.

A dense structure of grinding wheel is not used for the

A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2.

Also checkout

The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².