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

Question

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

A. Close the surface porosity

B. Break the continuity of columnar grains

C. Flatten the weldment

D. Introduce texture in the weld

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Hooke's law

A. Applies to elastic deformation

B. Applies beyond limit of proportionality in stress-strain curve

C. States that stress is inversely proportional to strain upto elastic limit

D. None of these

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Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be

A. 9.5 : 1

B. 12.5 : 1

C. 15.5 : 1

D. 18.5 : 1

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Speisses is a mixture of the following:

A. Arsenides of heavy metals

B. Antimonides of heavy metals

C. Arsenides & antimonides of heavy metals

D. Iron, cobalt and nickel

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Corrosion of metals cannot be prevented by its

A. Tempering

B. Chromising

C. Aluminising

D. Alloying

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Air standard Otto cycle is more efficient than the diesel cycle for the same

A. Heat addition & compression ratio

B. Heat addition & pressure

C. Compression ratio & pressure

D. Cylinder dimension & rpm

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Which of the following alloying elements is present in maximum percentage in high speed steel?

A. Molybdenum

B. Chromium

C. Tungsten

D. Vanadium

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Dislocation cross-slip is difficult in those materials, which have

A. Large number of slip systems

B. High work hardening rate

C. Coarse grain size

D. Low stacking fault energy

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The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.

A. 0.5

B. 3

C. 10

D. 25

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The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation is

A. More

B. Equal

C. Less

D. Double

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

A. Same

B. Slightly less

C. Slightly more

D. Much more

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Titanium is produced by __________ of Ti Cl₄.

A. Electrolytic reduction

B. Calcium reduction

C. Magnesium reduction

D. Thermal dissociation

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Iron content in Indian iron ore is about __________ percent.

A. 80-85

B. 60-65

C. 40-45

D. 20-25

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Unbreakable crockeries are made from __________ polymers.

A. Polystyrene

B. Melamine

C. Polystyrene

D. Polyurethane

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The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

A. 5

B. 15

C. 30

D. 45

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Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

A. 1.5

B. 3

C. 5

D. 7

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Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are

A. Cobalt, chromium & tungsten

B. Cobalt, chromium & nickel

C. Molybdenum, tungsten & chromium

D. Cobalt, zirconium & molybdenum

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

A. Pressure

B. Elastic

C. Gravity

D. Viscous

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During sensible cooling of air, its wet bulb temperature

A. Decreases but dew point remains constant

B. Increases but dew point remains constant

C. Increases & the dew point decreases

D. Decreases & the dew point increases

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Electrometallurgical methods of metal extraction is normally used for those metals

A. Whose oxide/ore is not reduced by carbon

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

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

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

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Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

A. Lower cost

B. Abundant availability

C. Resistance to vegetable acids as the tin plate are commercially used in 'canning' industry

D. None of these

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The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by

A. Decreasing the surface area of the electrodes

B. Increasing the concentration of zinc sulphate solution

C. Increasing the surface area of the electrodes

D. Increasing the concentration of copper sulphate solution

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The order of a chemical reaction

A. Can be determined only experimentally

B. Can be determined from the stoichiometry of the reaction

C. Cannot be zero

D. Can be fractional

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Ammonia gas can be dried by

A. PCl₅

B. Quick lime

C. CaCl₂

D. Concentrated H₂SO₄

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Which of the following approaches the ideal gas behaviour most closely?

A. Wet steam

B. Saturated steam

C. Superheated steam

D. Saturated water

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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

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Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

A. Steel

B. Lignite

C. Water

D. Lime stone

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Brazing filler metal used for joining steel plates

A. Melts below the melting points of base metals

B. Melts below 300°C

C. Is copper phosphorous alloy

D. Is copper

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Screws are specified by their __________ diameters.

A. Minor

B. Major

C. Pitch

D. None of these

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Shampoos are commercially not available in the form of

A. Powder

B. Gaseous mixture

C. Solution

D. Emulsion

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In chemical dehumidification process

A. Wet bulb temperature increases

B. Dry bulb temperature remains constant

C. Dew point temperature increases

D. Dry bulb temperature increases

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Accepted Answer

A. Close the surface porosity

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Hooke's law

Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be

Speisses is a mixture of the following:

Corrosion of metals cannot be prevented by its

Air standard Otto cycle is more efficient than the diesel cycle for the same

Which of the following alloying elements is present in maximum percentage in high speed steel?

Dislocation cross-slip is difficult in those materials, which have

The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.

The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation is

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

Titanium is produced by __________ of Ti Cl₄.

Iron content in Indian iron ore is about __________ percent.

Unbreakable crockeries are made from __________ polymers.

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are

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

During sensible cooling of air, its wet bulb temperature

Electrometallurgical methods of metal extraction is normally used for those metals

Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by

The order of a chemical reaction

Ammonia gas can be dried by

Which of the following approaches the ideal gas behaviour most closely?

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

Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

Brazing filler metal used for joining steel plates

Screws are specified by their __________ diameters.

Shampoos are commercially not available in the form of

In chemical dehumidification process

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Hooke's law

Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be

Speisses is a mixture of the following:

Corrosion of metals cannot be prevented by its

Air standard Otto cycle is more efficient than the diesel cycle for the same

Which of the following alloying elements is present in maximum percentage in high speed steel?

Dislocation cross-slip is difficult in those materials, which have

The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.

The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation is

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

Titanium is produced by __________ of Ti Cl4.

Iron content in Indian iron ore is about __________ percent.

Unbreakable crockeries are made from __________ polymers.

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are

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

During sensible cooling of air, its wet bulb temperature

Electrometallurgical methods of metal extraction is normally used for those metals

Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

The emf of a Deniell cell Zn | Zn2+ || Cu2+ | Cu can be increased by

The order of a chemical reaction

Ammonia gas can be dried by

Which of the following approaches the ideal gas behaviour most closely?

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

Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

Brazing filler metal used for joining steel plates

Screws are specified by their __________ diameters.

Shampoos are commercially not available in the form of

In chemical dehumidification process

Also checkout

Titanium is produced by __________ of Ti Cl₄.

The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by