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

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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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Which of the following phenomenon will exhibit the minimum heat transfer?

A. Boiling

B. Forced convection in air

C. Free convection in air

D. Conduction in air

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Metalloids

A. Are good conductor of heat & electricity

B. Act as electron donors with metals & as electron acceptor with non-metals

C. Are not necessarily solids at room temperature

D. Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

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In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be

A. Higher, as it gives higher wavelength

B. Lower, as it gives higher wavelength

C. Higher, as it gives shorter wavelength

D. Lower, as it gives shorter wavelength

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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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Unit of viscosity in CGS system is

A.

B.

C.

D.

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Which of the following is an ore dressing operation?

A. Classification

B. Smelting

C. Roasting

D. None of these

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The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

A. Resilience

B. Toughness

C. Ductility

D. Impact strength

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The activity co-efficient of the solute in a dilute solution

A. Decreases with the increase of concentration of the solute

B. Increases with the increase of concentration of the solute

C. Remains constant

D. Is unity at infinite dilution

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Softening of hardened steel is done by its

A. Normalising

B. Tempering

C. Annealing

D. Carburising

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If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.

A. Critical

B. Breeder

C. Fertile

D. Heterogeneous

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The trace metal present in insulin is

A. Cu

B. Zn

C. Fe

D. Ni

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The life of a ball bearing is inversely proportional to

A. (Load)¹

B. (Load)²

C. (Load)³

D. (Load)^0.33

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Gas turbine normally employs a constant __________ cycle.

A. Pressure

B. Temperature

C. Volume

D. None of these

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Joining of thin foils is preferred to be done by

A. Gamma rays

B. X-rays

C. Microwaves

D. Gas welding

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Spherical shape of mercury droplets is due to its

A. High viscosity

B. Low surface tension

C. High density

D. High surface tension

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Which of the following is not a characteristic observed in material failure by fatigue fracture?

A. Plastic deformation of material does not occur

B. Initiation of crack from below the surface does not occur

C. Initiation of crack occurs on the surface of the machine part

D. Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface

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The mechanism involved in the removal of metal in drilling operation is by

A. Compression

B. Extrusion

C. Shearing

D. Both 'b' & 'c'

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Hot extrusion process is not used for making

A. Cast iron pipe for domestic water supply

B. Aluminium curtain rods

C. Stainless steel tubes used in furnitures

D. Any 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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Tip of the match stick contains a mixture of

A. K + S

B. K + S + K₂Cr₂O₇

C. S + K₂Cr₂O₇ + White P

D. None of these

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Addition of silicon to cast iron

A. Promotes graphite module formation

B. Improves its ductility

C. Does not promote graphite flakes formation

D. Increases the fluidity of molten metal

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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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Materials having __________ lattice structure are usually the most ductile.

A. Body centred cubic (bcc)

B. Hexagonal close packed (hcp)

C. Face centred cubic (fcc)

D. None of these

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According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

A. 0.5

B. 2

C. √2

D. √3/2

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A spring material should have low

A. Elastic limit

B. Deflection value

C. Fatigue resistance

D. None of these

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Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

A. Sorbite

B. Bainite

C. Martensite

D. Troostite

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The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

A. Refrigerant cooling

B. Evaporator

C. Condenser

D. Throttling

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Which of the following if present in iron ore, enhances its value?

A. Alumina

B. Alkali oxide

C. Lime & Magnesia

D. None of these

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Powder metallurgy process does not make metal powder by

A. Atomisation

B. Grinding/milling

C. Hammering

D. Electrolytic deposition

Discuss this answer

Matte smelting is used in the extraction of

A. Lead

B. Zinc

C. Aluminium

D. Copper

Discuss this answer

Accepted Answer

C. Tungsten carbide

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following phenomenon will exhibit the minimum heat transfer?

Metalloids

In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be

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

Unit of viscosity in CGS system is

Which of the following is an ore dressing operation?

The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

The activity co-efficient of the solute in a dilute solution

Softening of hardened steel is done by its

If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.

The trace metal present in insulin is

The life of a ball bearing is inversely proportional to

Gas turbine normally employs a constant __________ cycle.

Joining of thin foils is preferred to be done by

Spherical shape of mercury droplets is due to its

Which of the following is not a characteristic observed in material failure by fatigue fracture?

The mechanism involved in the removal of metal in drilling operation is by

Hot extrusion process is not used for making

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

Tip of the match stick contains a mixture of

Addition of silicon to cast iron

Electrometallurgical methods of metal extraction is normally used for those metals

Materials having __________ lattice structure are usually the most ductile.

According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

A spring material should have low

Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

Which of the following if present in iron ore, enhances its value?

Powder metallurgy process does not make metal powder by

Matte smelting is used in the extraction of

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following phenomenon will exhibit the minimum heat transfer?

Metalloids

In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be

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

Unit of viscosity in CGS system is

Which of the following is an ore dressing operation?

The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

The activity co-efficient of the solute in a dilute solution

Softening of hardened steel is done by its

If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.

The trace metal present in insulin is

The life of a ball bearing is inversely proportional to

Gas turbine normally employs a constant __________ cycle.

Joining of thin foils is preferred to be done by

Spherical shape of mercury droplets is due to its

Which of the following is not a characteristic observed in material failure by fatigue fracture?

The mechanism involved in the removal of metal in drilling operation is by

Hot extrusion process is not used for making

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

Tip of the match stick contains a mixture of

Addition of silicon to cast iron

Electrometallurgical methods of metal extraction is normally used for those metals

Materials having __________ lattice structure are usually the most ductile.

According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

A spring material should have low

Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

Which of the following if present in iron ore, enhances its value?

Powder metallurgy process does not make metal powder by

Matte smelting is used in the extraction of

Also checkout

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

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