The surface tension of a liquid, at critical temperature is

Question

The surface tension of a liquid, at critical temperature is

B. Zero

Correct Answer :

B. Zero

Share this question with your friends

Show all Chemical Engineering Basics MCQ

Comment

Hot extrusion of aluminium is done in the temperature range of __________ °C.

Discuss this answer

Which of the following terminology is used for the temperature at which new grains are formed in a metal?

Discuss this answer

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

A. <100

B. >100

Discuss this answer

Silicon percentage in acid resistant cast iron is about

A. 4

B. 8

C. 14

D. 20

Discuss this answer

For a first order chemical reaction, the concentration of the reactant decreases __________ with time.

Discuss this answer

Batch process is preferred over continuous process, when the

Discuss this answer

The surface tension of a liquid, at critical temperature is

B. Zero

Discuss this answer

Out of the following, the __________ pipe has the least corrosion resistance.

B. Copper

Discuss this answer

Pick out the wrong statement.

Discuss this answer

Which of the following does not discharge the dust collected as a dry solid?

Discuss this answer

Use of water as a manometric liquid suffers from the disadvantage of its

Discuss this answer

Powder metallurgy technique is used in the production of __________ tools.

Discuss this answer

__________ of grey cast iron produces white cast iron.

Discuss this answer

Multistage compression of air as compared to single stage compression offers the advantage of

Discuss this answer

An atom bomb works on the principle of

Discuss this answer

Chromium molybdenum steel cannot be welded using __________ welding.

Discuss this answer

Hydrogen in liquid steels is dissolved

Discuss this answer

Which of the following materials does not form adherent oxide film on surface?

A. Copper

B. Nickel

Discuss this answer

Brittleness induced due to the presence of sulphur in steel can be reduced by adding

D. Copper

Discuss this answer

Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.

A. 10^-3

B. 10³

C. 10^-15

Discuss this answer

Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C is

A. 3

B. 5

C. 0.5

D. 1.5

Discuss this answer

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

A. 100

B. 900

C. 9000

D. 10000

Discuss this answer

Energy of the sun arises mainly from __________ reactions.

A. Fusion

Discuss this answer

__________ test can be termed as the semidestructive test.

A. Impact

D. Charpy

Discuss this answer

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

Discuss this answer

In multipass welds, shot peening is done after each pass to

Discuss this answer

In electrical resistance welding, distortion results from the use of improper

Discuss this answer

Property responsible for the talcum powder to cling to the skin is the

Discuss this answer

Powder metallurgy is used to produce

Discuss this answer

Starting friction is low in case of the __________ lubrication.

Discuss this answer

Answer 1

A. Indeterminate

Answer 2

C. Infinity

Answer 3

D. Same as that at any other temperature

Answer 4

A. 550-600

Answer 5

B. 450-500

Answer 6

C. 350-400

Answer 7

D. 250-300

Answer 8

A. Eutectic temperature

Answer 9

B. Lower critical temperature

Answer 10

C. Recrystallisation temperature

Answer 11

D. Upper critical temperature

Answer 12

C. About 273

Answer 13

D. About 373

Answer 14

A. Linearly

Answer 15

B. Exponentially

Answer 16

C. Logarithmically

Answer 17

D. Inversely

Answer 18

A. Product yields and quality cannot be achieved in continuous process, because of long residence time

Answer 19

B. Sales demand of product is not steady

Answer 20

C. Same equipment cannot be used for several processes of the same nature

Answer 21

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

Answer 22

A. Indeterminate

Answer 23

C. Infinity

Answer 24

D. Same as that at any other temperature

Answer 25

A. Mild steel

Answer 26

C. Cast iron

Answer 27

D. Wrought iron

Answer 28

A. Ductile fracture of a stressed material, which exhibits a large plastic deformation is commonly caused by the formation and coalescence of voids in the necked region

Answer 29

B. Brittle fracture is caused by the propagation of pre-existing cracks in the material and involves minimum plastic deformation

Answer 30

C. Fatigue fracture of a material is always brittle in nature and takes place due to the existence of line imperfections

Answer 31

D. Brittle materials are generally tested in tension

Answer 32

A. Electrostatic precipitator

Answer 33

B. Wet scrubber

Answer 34

C. Bag filter

Answer 35

D. Gravity settling chamber

Answer 36

A. Low vapour pressure

Answer 37

B. Corrosive nature

Answer 38

C. High vapour pressure

Answer 39

D. High boiling point

Answer 40

A. Tungsten carbide

Answer 41

B. High carbon steel

Answer 42

C. High speed steel

Answer 43

D. Drilling

Answer 44

A. Tempering

Answer 45

B. Rapid heating

Answer 46

C. Rapid cooling

Answer 47

D. Slow cooling

Answer 48

A. Power saving per unit weight of air delivered

Answer 49

B. Moisture elimination in the inter-stage cooler

Answer 50

C. Increased volumetric efficiency

Answer 51

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

Answer 52

A. Nuclear fission

Answer 53

B. Nuclear fusion

Answer 54

C. Both the nuclear fission & fusion

Answer 55

D. Ionisation

Answer 56

A. Thermit

Answer 57

B. Electrical resistance

Answer 58

C. Oxy-acetylene

Answer 59

D. Any of these

Answer 60

A. As tiny gas bubbles

Answer 61

B. In the atomic form

Answer 62

C. In the ionic form

Answer 63

D. In the molecular form

Answer 64

C. Aluminium

Answer 65

D. Gold & silver

Answer 66

A. Manganese

Answer 67

B. Magnesium

Answer 68

C. Vanadium

Answer 69

D. 10¹⁵

Answer 70

B. Fission

Answer 71

C. Combustion

Answer 72

D. None of these

Answer 73

B. Torsion

Answer 74

C. Hardness

Answer 75

A. Close the surface porosity

Answer 76

B. Break the continuity of columnar grains

Answer 77

C. Flatten the weldment

Answer 78

D. Introduce texture in the weld

Answer 79

A. Clamping methods

Answer 80

B. Electrodes

Answer 81

C. Current

Answer 82

D. Filler material

Answer 83

A. Capillary action

Answer 84

B. Adhesion

Answer 85

C. Cohesion

Answer 86

D. Surface tension

Answer 87

A. High precision components with complex cavities and sharp features

Answer 88

B. Components of large size

Answer 89

C. Porosity free components

Answer 90

D. Components of such alloys whose constituents do not form alloys readily

Answer 91

A. Boundary

Answer 92

B. Hydrodynamic

Answer 93

C. Hydrostatic

Answer 94

D. Mixed/semi-fluid

The surface tension of a liquid, at critical temperature is

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Hot extrusion of aluminium is done in the temperature range of __________ °C.

Which of the following terminology is used for the temperature at which new grains are formed in a metal?

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

Silicon percentage in acid resistant cast iron is about

For a first order chemical reaction, the concentration of the reactant decreases __________ with time.

Batch process is preferred over continuous process, when the

The surface tension of a liquid, at critical temperature is

Out of the following, the __________ pipe has the least corrosion resistance.

Pick out the wrong statement.

Which of the following does not discharge the dust collected as a dry solid?

Use of water as a manometric liquid suffers from the disadvantage of its

Powder metallurgy technique is used in the production of __________ tools.

__________ of grey cast iron produces white cast iron.

Multistage compression of air as compared to single stage compression offers the advantage of

An atom bomb works on the principle of

Chromium molybdenum steel cannot be welded using __________ welding.

Hydrogen in liquid steels is dissolved

Which of the following materials does not form adherent oxide film on surface?

Brittleness induced due to the presence of sulphur in steel can be reduced by adding

Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.

Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C is

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

Energy of the sun arises mainly from __________ reactions.

__________ test can be termed as the semidestructive test.

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

In multipass welds, shot peening is done after each pass to

In electrical resistance welding, distortion results from the use of improper

Property responsible for the talcum powder to cling to the skin is the

Powder metallurgy is used to produce

Starting friction is low in case of the __________ lubrication.

Also checkout

The surface tension of a liquid, at critical temperature is

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Hot extrusion of aluminium is done in the temperature range of __________ °C.

Which of the following terminology is used for the temperature at which new grains are formed in a metal?

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

Silicon percentage in acid resistant cast iron is about

For a first order chemical reaction, the concentration of the reactant decreases __________ with time.

Batch process is preferred over continuous process, when the

The surface tension of a liquid, at critical temperature is

Out of the following, the __________ pipe has the least corrosion resistance.

Pick out the wrong statement.

Which of the following does not discharge the dust collected as a dry solid?

Use of water as a manometric liquid suffers from the disadvantage of its

Powder metallurgy technique is used in the production of __________ tools.

__________ of grey cast iron produces white cast iron.

Multistage compression of air as compared to single stage compression offers the advantage of

An atom bomb works on the principle of

Chromium molybdenum steel cannot be welded using __________ welding.

Hydrogen in liquid steels is dissolved

Which of the following materials does not form adherent oxide film on surface?

Brittleness induced due to the presence of sulphur in steel can be reduced by adding

Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.

Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C is

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m- 1. k-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

Energy of the sun arises mainly from __________ reactions.

__________ test can be termed as the semidestructive test.

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

In multipass welds, shot peening is done after each pass to

In electrical resistance welding, distortion results from the use of improper

Property responsible for the talcum powder to cling to the skin is the

Powder metallurgy is used to produce

Starting friction is low in case of the __________ lubrication.

Also checkout

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is