Particle nature of cathode rays is proved due to the fact that they

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Particle nature of cathode rays is proved due to the fact that they

A. Travel in a straight line

B. Get deflected by magnetic electric field

C. Produce fluorescence

D. Heat the exposed material

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For efficient performance of a blast furnace, the extent of reduction of Wustite (F_eO) should be

A. 100% indirect reduction

B. 100% direct reduction

C. 50-60% indirect reduction

D. 30-40% indirect reduction

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Normalising does not __________ of a metal.

A. Improve machinability & tensile strength

B. Remove internal stresses

C. Refine the structure

D. Remove strains caused by cold working

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Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

A. Pure oxygen has been used for combustion

B. Nitrogen percentage in the fuel is very high

C. Excess air has been used for combustion

D. Hydrogen is not present in the fuel

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M10 index of coke indicates its

A. Compressive strength

B. Hardness

C. Abrasion resistance

D. Impact strength

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Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

A. V/A

B. V/A²

C. V²/A

D. V²/A²

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Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent in steel.

A. 0.01 to 0.10

B. 0.2 to 0.4

C. 0.5 to 0.7

D. 0.8 to 1.0

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Which of the following forces does not act on a fluid at rest?

A. Viscous force

B. Gravity force

C. Hydrostatic force

D. Surface tension force

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What is the pH of distilled water?

A. 0

B. 1

C. 7

D. 14

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Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

A. 9 : 1

B. 17 : 1

C. 23 : 1

D. 29 : 1

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Direct conversion of thermal energy to electrical energy is facilitated by the

A. Fuel cells

B. Photo voltaic cell

C. Magneto hydrodynamic generator

D. None of these

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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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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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The passage between the nozzle and the __________ is called 'sprue' in case of injection moulding.

A. Runner

B. Cylinder

C. Mold

D. None of these

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Which of the following fastening devices has its both ends threaded?

A. Bolt

B. Stud

C. Set screw

D. Split nut

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Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

A. Scratch

B. Indentation

C. Dynamic

D. Rebound

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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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On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is

A. Creep

B. Toughness

C. Tensile strength

D. Fatigue

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Matte smelting is used in the extraction of

A. Lead

B. Zinc

C. Aluminium

D. Copper

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Which of the following terminology is used for the temperature at which new grains are formed in a metal?

A. Eutectic temperature

B. Lower critical temperature

C. Recrystallisation temperature

D. Upper critical temperature

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at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of at 1173 K?

A. 1.0

B. 1.3

C. 2.3

D. 3.3

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Softening of hardened steel is done by its

A. Normalising

B. Tempering

C. Annealing

D. Carburising

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Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.

A. Fracture

B. Dislocation

C. Slip

D. Twinning

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At 100% relative humidity, the dew point temperature of moist air is

A. Less than the wet bulb temperature

B. More than the wet bulb temperature

C. Equal to the wet bulb temperature

D. Equal to the ambient temperature

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In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

A. μ , α and θ all have units of m/s

B. μ , α and θ all have units of m2/s

C. α and θ have units of m2/s, while μ has unit of m/s

D. α and θ have units of m/s, while μ has unit of m2/s

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Absolute zero pressure can be attained at a temperature of

A. 0°C

B. 50°K

C. 0°R

D. None of these

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Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

A. Burning

B. Intensive oxidation

C. Evaporation

D. None of these

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Change in volume of metals from absolute zero temperature to their melting points is

A. Almost same for all metals

B. Different for different metals

C. Less for low melting point metals

D. Less for high melting point metals

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Filler material used in welding should have __________ as compared to the parent metal to be welded.

A. Lower melting temperature

B. Same melting temperature

C. Same composition

D. Both 'b' & 'c'

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Cast iron contains __________ percent carbon.

A. 2.5

B. 3.75

C. 4.75

D. 5.25

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Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

A. 723

B. 959

C. 1147

D. 1493

Discuss this answer

Accepted Answer

B. Get deflected by magnetic electric field

Particle nature of cathode rays is proved due to the fact that they

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

For efficient performance of a blast furnace, the extent of reduction of Wustite (F_eO) should be

Normalising does not __________ of a metal.

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

M10 index of coke indicates its

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent in steel.

Which of the following forces does not act on a fluid at rest?

What is the pH of distilled water?

Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

Direct conversion of thermal energy to electrical energy is facilitated by the

Materials having __________ lattice structure are usually the most ductile.

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

The passage between the nozzle and the __________ is called 'sprue' in case of injection moulding.

Which of the following fastening devices has its both ends threaded?

Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

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

On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is

Matte smelting is used in the extraction of

Which of the following terminology is used for the temperature at which new grains are formed in a metal?

at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of at 1173 K?

Softening of hardened steel is done by its

Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.

At 100% relative humidity, the dew point temperature of moist air is

In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

Absolute zero pressure can be attained at a temperature of

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

Change in volume of metals from absolute zero temperature to their melting points is

Filler material used in welding should have __________ as compared to the parent metal to be welded.

Cast iron contains __________ percent carbon.

Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

Also checkout

Particle nature of cathode rays is proved due to the fact that they

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be

Normalising does not __________ of a metal.

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO2 = 12%, O2 = 8%, CO = nil, N2 = 80%. This flue gas composition indicates that

M10 index of coke indicates its

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent in steel.

Which of the following forces does not act on a fluid at rest?

What is the pH of distilled water?

Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

Direct conversion of thermal energy to electrical energy is facilitated by the

Materials having __________ lattice structure are usually the most ductile.

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

The passage between the nozzle and the __________ is called 'sprue' in case of injection moulding.

Which of the following fastening devices has its both ends threaded?

Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

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

On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is

Matte smelting is used in the extraction of

Which of the following terminology is used for the temperature at which new grains are formed in a metal?

at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of at 1173 K?

Softening of hardened steel is done by its

Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.

At 100% relative humidity, the dew point temperature of moist air is

In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

Absolute zero pressure can be attained at a temperature of

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

Change in volume of metals from absolute zero temperature to their melting points is

Filler material used in welding should have __________ as compared to the parent metal to be welded.

Cast iron contains __________ percent carbon.

Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

Also checkout

For efficient performance of a blast furnace, the extent of reduction of Wustite (F_eO) should be

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that