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

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

A. Mechanical

B. Machining

C. Magnetic

D. Refractory

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Principal alloying element in Elinvar (used for making hair springs for watches) is

A. Copper

B. Aluminium

C. Nickel

D. Zinc

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Which of the following properties of a solid is not dependent on crystal imperfection?

A. Ductility

B. Semi-conductivity

C. Melting point

D. Yield stress

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Which of the following is not a dielectric material?

A. Cotton, silk and paper

B. Asbestos, glass, porcelain and mica

C. Rubber and polymeric resins

D. All refractory materials

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'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and

A. Petrol

B. LPG

C. Light hydrocarbon gases (e.g. butane or propane)

D. None of these

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The dimensional formula of bulk modulus of elasticity is same as that of the

A. Pressure

B. Density

C. Force

D. None of these

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The noble metals

A. Are exemplified by Na, K and Li

B. Do not resist corrosion very strongly

C. Are the lowermost in the electro-chemical series of metals

D. None of these

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Ferromagnetic materials owe their properties to __________ inner sub-shells.

A. Completely filled

B. Partially filled

C. Equally filled

D. Vacant

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The main reducing agent in iron blast furnace is

A. Carbon dioxide

B. Carbon monoxide

C. Oxygen

D. Air

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Fibrous fracture is normally encountered in the __________ materials.

A. Hard

B. Elastic

C. Ductile

D. Brittle

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Common salt is produced from sea water in India generally by the __________ method.

A. Freeze drying

B. Solar evaporation

C. Electrolytic

D. None of these

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Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars.

A. Hot rolled mild

B. Cold rolled mild

C. Forged

D. Machinable stainless

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Which of the, following is not associated with the functioning of a petrol engine?

A. Compression ignition system

B. Spark plug

C. Carburettor

D. Otto cycle

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The boiling & freezing points on a newly defined temperature scale in degree 'D' are 400°D & 100°D respectively. The temperature reading corresponding to 60°C on this new temperature scale will be equal to __________ °D.

A. 140

B. 180

C. 240

D. 280

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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

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Diamagnetic materials

A. Are magnetised by eddy currents only

B. Are non-magnetic and cannot be magnetised

C. Are magnetised in direction opposite to the magnetic field

D. Can be magnetised in one direction only

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The hardenability of steel decreases with

A. Decrease in dislocation density

B. Increase in solutionising temperature

C. Increase in strength

D. Decrease in grain size

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Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

A. °C

B. °F

C. °K

D. °R

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Dry saturated steam can be converted into superheated steam by

A. Increasing its cross-sectional area of flow

B. Passing it through a pressure reducing valve

C. Forcing it downwards through a vertical tube

D. None of these

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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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A common disinfectant used in village wells for disinfection of water is

A. Free chlorine

B. Bromine

C. Iodine

D. Potassium permanganate

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__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

A. Stellite

B. High speed steel

C. Cermet

D. Alnico

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Which of the following is an example of cathodic protection of metals against corrosion?

A. Painted steel

B. Galvanised iron

C. Case hardened steel

D. Lead lined reactor

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Optical activity is a/an __________ property.

A. Additive

B. Constitutive

C. Both (A) & (B)

D. Neither (A) nor (B)

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Which of the following is resistant to the action of both heat & chemicals?

A. Borosilicate glass

B. Silica glass

C. Soda lime glass

D. None of these

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The lightest non-inflammable gas is

A. H2

B. He

C. Ar

D. O2

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Potable water means the water used for

A. Fire-fighting

B. Cooling

C. Drinking

D. Evaporation to produce steam

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Corona discharge is related to the operation of a/an

A. Induction motor

B. Electrostatic precipitator

C. Fast breeder reactor

D. Magneto hydrodynamic generator (MHD)

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While the recrystallisation temperature for pure metals is 0.3 T_m, the same for alloys is equal to __________ × T_m (where, T_m Melting temperature).

A. 0.25

B. 0.45

C. 0.70

D. 0.95

Discuss this answer

Thermit welding is categorised as the __________ welding.

A. Forge

B. Fusion

C. Resistance

D. Arc

Discuss this answer

Accepted Answer

D. Both 'b' & 'c'

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

Correct Answer :

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Related Questions

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

Principal alloying element in Elinvar (used for making hair springs for watches) is

Which of the following properties of a solid is not dependent on crystal imperfection?

Which of the following is not a dielectric material?

'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and

The dimensional formula of bulk modulus of elasticity is same as that of the

The noble metals

Ferromagnetic materials owe their properties to __________ inner sub-shells.

The main reducing agent in iron blast furnace is

Fibrous fracture is normally encountered in the __________ materials.

Common salt is produced from sea water in India generally by the __________ method.

Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars.

Which of the, following is not associated with the functioning of a petrol engine?

The boiling & freezing points on a newly defined temperature scale in degree 'D' are 400°D & 100°D respectively. The temperature reading corresponding to 60°C on this new temperature scale will be equal to __________ °D.

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

Diamagnetic materials

The hardenability of steel decreases with

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

Dry saturated steam can be converted into superheated steam by

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

A common disinfectant used in village wells for disinfection of water is

__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

Which of the following is an example of cathodic protection of metals against corrosion?

Optical activity is a/an __________ property.

Which of the following is resistant to the action of both heat & chemicals?

The lightest non-inflammable gas is

Potable water means the water used for

Corona discharge is related to the operation of a/an

While the recrystallisation temperature for pure metals is 0.3 T_m, the same for alloys is equal to __________ × T_m (where, T_m Melting temperature).

Thermit welding is categorised as the __________ welding.

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

Principal alloying element in Elinvar (used for making hair springs for watches) is

Which of the following properties of a solid is not dependent on crystal imperfection?

Which of the following is not a dielectric material?

'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and

The dimensional formula of bulk modulus of elasticity is same as that of the

The noble metals

Ferromagnetic materials owe their properties to __________ inner sub-shells.

The main reducing agent in iron blast furnace is

Fibrous fracture is normally encountered in the __________ materials.

Common salt is produced from sea water in India generally by the __________ method.

Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars.

Which of the, following is not associated with the functioning of a petrol engine?

The boiling & freezing points on a newly defined temperature scale in degree 'D' are 400°D & 100°D respectively. The temperature reading corresponding to 60°C on this new temperature scale will be equal to __________ °D.

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

Diamagnetic materials

The hardenability of steel decreases with

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

Dry saturated steam can be converted into superheated steam by

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

A common disinfectant used in village wells for disinfection of water is

__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

Which of the following is an example of cathodic protection of metals against corrosion?

Optical activity is a/an __________ property.

Which of the following is resistant to the action of both heat & chemicals?

The lightest non-inflammable gas is

Potable water means the water used for

Corona discharge is related to the operation of a/an

While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to __________ × Tm (where, Tm Melting temperature).

Thermit welding is categorised as the __________ welding.

Also checkout

While the recrystallisation temperature for pure metals is 0.3 T_m, the same for alloys is equal to __________ × T_m (where, T_m Melting temperature).