Maraging steels derive their strength from the following mechanism:

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Maraging steels derive their strength from the following mechanism:

A. A fine, highly dislocated and strong martensite

B. Fine dispersions of inter-metallic of Fe, Ni, Ti etc

C. Fine dispersions of alloy carbides in a ferrite matrix

D. Fine dispersions of C nucleated on dislocations in austenite

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Temper brittleness of a material can be fairly detected by the __________ test.

A. Fatigue

B. Notched bar impact

C. Tensile

D. Hardness

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Steel balls are manufactured by

A. Sintering

B. Casting

C. Cold heading

D. Spinning

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Lead is poured into the joint between two- __________ pipes.

A. Mild steel

B. Concrete

C. Cast iron

D. Asbestos cement

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Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

A. Enthalpy

B. Relative humidity

C. Wet bulb temperature

D. Dew point temperature

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Electrostatic separation of minerals from each other is based on their differences in the following property.

A. Densities

B. Magnetic permeabilities

C. Electrical conductivities

D. Hardness

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The swift cup test evaluates the following property of a sheet metal.

A. Stretchability

B. Drawability

C. Bendability

D. None of these

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Thermistors are used in __________ devices.

A. Voltage measuring

B. Temperature measuring

C. Temperature compensating

D. Both (B) & (C)

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Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)

A. 1/k

B. k

C. k²

D. 1/k²

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A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place

A. The better insulation material should be put just next to pipe (i.e., inside)

B. The better insulating material should be put outside

C. Either of the insulating material could be put on either side

D. Steam temperature is considered before deciding as to which insulating material is to be put inside (i.e., just next to the pipe)

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__________ are normally subjected to sub-zero treatment.

A. Highly stressed parts

B. Gauges or precision parts

C. Cold rolled sheets

D. Non machinable materials

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Coating provided on the electrodes used in the arc welding is not expected to

A. Add alloying elements

B. Prevent electrode from contamination

C. Stabilise the arc

D. Provide protective atmosphere to weld

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Pick out the wrong statement.

A. Molecules with symmetrical arrangements (e.g. CH₄ or CCl₄) are non-polar

B. Generally, non-polar compounds are chemically inactive, conduct electricity poorly and do not ionise

C. Most of the hydrocarbons are non-polar

D. None of these

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

A. Mild steel

B. Copper

C. Cast iron

D. Wrought iron

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While the bin cards are used in the effective stores management, the queuing theory is associated with the __________ time.

A. Waiting

B. Idle

C. Inspection

D. Tool replacement

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Triple point of water is

A. 0°F

B. 492°R

C. 0°K

D. -273°C

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

A. 180°

B. 212°

C. 32°

D. 273°

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A pycnometer is used for the measurement of

A. Flow rate of molten metal

B. Specific gravity of a liquid

C. Composition of alloys

D. Concentration of a solution

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Which of the following has the highest modulus of elasticity (about 7 × 10⁶ kg/cm²)?

A. High speed steel

B. Stainless steel

C. Tungsten carbide

D. Superalloys

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Percentage of argon (by volume) in dry atmospheric air is about

A. 0.09

B. 0.3

C. 0.57

D. 0.94

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Transformer cores are normally made from

A. Soft ferrites

B. High purity iron

C. Grain oriented Fe-Si alloy

D. Al-Ni-Co alloy

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Cementite is in the lamellar form in the __________ phase of steel.

A. Martenistic

B. Bainitic

C. Pearlitic

D. Ferritic

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

A. Carbon dioxide

B. Water

C. Mercury

D. None of these

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In extrusion of metals, which of the following statement is true?

A. Speed of the extruded material is same as that of ram speed

B. Redundant work is a function of the die angle

C. Relative motion between the billet surface and the container wall is always present

D. Hollow ram is used for indirect extrusion

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During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

A. Time

B. Square root of time

C. Square of time

D. Cube of time

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Air-petrol ratio in an automotive petrol engine is around

A. 14 : 1

B. 22 : 1

C. 25 : 1

D. 4 : 1

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The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

A. 3

B. 7

C. 11

D. 15

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Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

A. Air filter

B. Fuel injector

C. Exhaust silencer

D. Battery

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__________ fluid force is not considered in the Navier-Stokes equation.

A. Turbulent

B. Viscous

C. Gravity

D. Pressure

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Insulation of liquid surface can be achieved by __________ on top of its surface.

A. Floating hollow polypropylene spheres

B. Spraying alumina powder

C. Putting cement

D. None of these

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The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

A. 4.4

B. 5.6

C. 8.4

D. 2.4

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Accepted Answer

A. A fine, highly dislocated and strong martensite

Maraging steels derive their strength from the following mechanism:

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Temper brittleness of a material can be fairly detected by the __________ test.

Steel balls are manufactured by

Lead is poured into the joint between two- __________ pipes.

Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

Electrostatic separation of minerals from each other is based on their differences in the following property.

The swift cup test evaluates the following property of a sheet metal.

Thermistors are used in __________ devices.

Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)

A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place

__________ are normally subjected to sub-zero treatment.

Coating provided on the electrodes used in the arc welding is not expected to

Pick out the wrong statement.

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

While the bin cards are used in the effective stores management, the queuing theory is associated with the __________ time.

Triple point of water is

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

A pycnometer is used for the measurement of

Which of the following has the highest modulus of elasticity (about 7 × 10⁶ kg/cm²)?

Percentage of argon (by volume) in dry atmospheric air is about

Transformer cores are normally made from

Cementite is in the lamellar form in the __________ phase of steel.

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

In extrusion of metals, which of the following statement is true?

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

Air-petrol ratio in an automotive petrol engine is around

The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

__________ fluid force is not considered in the Navier-Stokes equation.

Insulation of liquid surface can be achieved by __________ on top of its surface.

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

Also checkout

Maraging steels derive their strength from the following mechanism:

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Temper brittleness of a material can be fairly detected by the __________ test.

Steel balls are manufactured by

Lead is poured into the joint between two- __________ pipes.

Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

Electrostatic separation of minerals from each other is based on their differences in the following property.

The swift cup test evaluates the following property of a sheet metal.

Thermistors are used in __________ devices.

Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)

A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place

__________ are normally subjected to sub-zero treatment.

Coating provided on the electrodes used in the arc welding is not expected to

Pick out the wrong statement.

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

While the bin cards are used in the effective stores management, the queuing theory is associated with the __________ time.

Triple point of water is

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

A pycnometer is used for the measurement of

Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?

Percentage of argon (by volume) in dry atmospheric air is about

Transformer cores are normally made from

Cementite is in the lamellar form in the __________ phase of steel.

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

In extrusion of metals, which of the following statement is true?

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

Air-petrol ratio in an automotive petrol engine is around

The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

__________ fluid force is not considered in the Navier-Stokes equation.

Insulation of liquid surface can be achieved by __________ on top of its surface.

The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

Also checkout

Which of the following has the highest modulus of elasticity (about 7 × 10⁶ kg/cm²)?

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)