More than 95% of __________ is present in corundum.

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More than 95% of __________ is present in corundum.

A. SiO₂

B. Al₂O₃

C. CaSiO₂

D. MgO

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The joint for soldering is supported by binding wire made of

A. Mild steel

B. Copper

C. Soft iron

D. Stainless steel

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Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about

A. 1

B. 10

C. 25

D. 50

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__________ furnace is generally used in the non-ferrous foundries.

A. Direct arc

B. Indirect arc

C. Resistance

D. Induction

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Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

A. Retained austenite

B. Martensite formation

C. Relatively high sulphur content in the base metal

D. Sufficient hydrogen present in the welding arc

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Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per of steel strip.

A. 5-10

B. 1000-1500

C. 120-500

D. 1500-3000

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Liquor poisoning generally occurs due to the presence of __________ in it.

A. Ethyl alcohol

B. Impurities

C. Methyl alcohol

D. Carbonic acid

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

A. 550-600

B. 450-500

C. 350-400

D. 250-300

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The product of a commercial direct reduction process is

A. Liquid iron

B. Solid iron

C. Sponge iron

D. Iron saturated with carbon

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Damage to metal surface by mechanical action is called

A. Pitting

B. Corrosion

C. Erosion

D. None of these

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Pressure required to increase the density of water by about 1% is __________ atmosphere.

A. 10

B. 50

C. 200

D. 1000

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LVDT used for displacement measurement is a/an __________ transducer.

A. Passive

B. Active

C. Capacitive

D. None of these

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If Reynolds number is greater than 1, then the

A. Viscous force is larger than the inertia force

B. Inertia force is larger than the viscous force

C. Inertia force is larger than the surface tension force

D. Inertia force is larger than the gravitational force

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Silicon percentage in silicon steel used for electrical equipments is about

A. 1

B. 4.0

C. 8

D. 14

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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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In an eutectic system, two elements are completely

A. Soluble in solid state

B. Insoluble in liquid state

C. Insoluble in both solid & liquid state

D. Soluble in liquid state

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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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Powder metallurgy process does not make metal powder by

A. Atomisation

B. Grinding/milling

C. Hammering

D. Electrolytic deposition

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Pick out the wrong statement.

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

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

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

D. Brittle materials are generally tested in tension

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Use of flux during soldering is done to

A. Increase fluidity of solder by lowering its melting temperature

B. Prevent oxide formation

C. Wash away surplus solder

D. Full up the joint gap

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Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

A. Joule

B. Carnot

C. Rankine

D. Brayton

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__________ is a special constituent of chlorophyll without which photosynthesis is not possible.

A. Calcium

B. Nitrogen

C. Phosphorous

D. Hydrogen

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Which of the following does not have a sharp melting point?

A. Thoria

B. Glass

C. Ice

D. Pig iron

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An oxidation process is accompanied with decrease in the

A. Number of electrons

B. Oxidation number

C. Number of ions

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

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Which of the following gases cause global warming?

A. Carbon monoxide

B. Carbon dioxide

C. Nitrogen

D. Ozone

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A jet engine turbine blade is normally manufactured by

A. Forging

B. Shell moulding

C. Investment casting

D. Pressure die casting

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Consumable electrodes are used in the __________ welding.

A. Gas

B. Arc

C. Thermit

D. Resistance

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For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by

A.

B.

C.

D.

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Tesla metre per ampere (T. m/A) is the unit for the measurement of

A. Magnetic susceptibility

B. Magnetic moment

C. Permeability of free space

D. Flux density

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The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T₁ and T₂ is given by

A. T₁/(T₁-T₂)

B. T₂/(T₁-T₂)

C. T₁/T₂

D. T₂/T₁

Discuss this answer

Milk is fat dispersed in water. It is an example of

A. Suspension

B. Emulsion

C. Gel

D. Solution

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Accepted Answer

B. Al₂O₃

More than 95% of __________ is present in corundum.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The joint for soldering is supported by binding wire made of

Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about

__________ furnace is generally used in the non-ferrous foundries.

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per of steel strip.

Liquor poisoning generally occurs due to the presence of __________ in it.

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

The product of a commercial direct reduction process is

Damage to metal surface by mechanical action is called

Pressure required to increase the density of water by about 1% is __________ atmosphere.

LVDT used for displacement measurement is a/an __________ transducer.

If Reynolds number is greater than 1, then the

Silicon percentage in silicon steel used for electrical equipments is about

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

In an eutectic system, two elements are completely

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

Powder metallurgy process does not make metal powder by

Pick out the wrong statement.

Use of flux during soldering is done to

Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

__________ is a special constituent of chlorophyll without which photosynthesis is not possible.

Which of the following does not have a sharp melting point?

An oxidation process is accompanied with decrease in the

Which of the following gases cause global warming?

A jet engine turbine blade is normally manufactured by

Consumable electrodes are used in the __________ welding.

For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by

Tesla metre per ampere (T. m/A) is the unit for the measurement of

The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T₁ and T₂ is given by

Milk is fat dispersed in water. It is an example of

Also checkout

More than 95% of __________ is present in corundum.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The joint for soldering is supported by binding wire made of

Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about

__________ furnace is generally used in the non-ferrous foundries.

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per of steel strip.

Liquor poisoning generally occurs due to the presence of __________ in it.

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

The product of a commercial direct reduction process is

Damage to metal surface by mechanical action is called

Pressure required to increase the density of water by about 1% is __________ atmosphere.

LVDT used for displacement measurement is a/an __________ transducer.

If Reynolds number is greater than 1, then the

Silicon percentage in silicon steel used for electrical equipments is about

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

In an eutectic system, two elements are completely

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

Powder metallurgy process does not make metal powder by

Pick out the wrong statement.

Use of flux during soldering is done to

Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

__________ is a special constituent of chlorophyll without which photosynthesis is not possible.

Which of the following does not have a sharp melting point?

An oxidation process is accompanied with decrease in the

Which of the following gases cause global warming?

A jet engine turbine blade is normally manufactured by

Consumable electrodes are used in the __________ welding.

For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by

Tesla metre per ampere (T. m/A) is the unit for the measurement of

The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 - T2)/T1. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T1 and T2 is given by

Milk is fat dispersed in water. It is an example of

Also checkout

The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T₁ and T₂ is given by