Evaporative cooling process employs a combination of cooling and humidification in which the

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Evaporative cooling process employs a combination of cooling and humidification in which the

A. Sensible heat is added

B. Sensible heat is removed and the latent heat is added

C. Latent heat is removed

D. Sensible heat is added and latent heat is removed

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Dielectric

A. Is an electrical insulating material

B. Of low resistivity is preferred

C. Should have high thermal conductivity

D. Need not defy the corrosive action of chemicals

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The process of removal of scale formed during hot rolling of steel is termed as

A. Descaling

B. Shot blasting

C. Pickling

D. Skimming

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The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

A. 60 - 100

B. 400 - 700

C. 1200 -1500

D. 2000 - 2300

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Compressed dry air is used as the cutting fluid, while machining

A. Steel

B. Cast iron

C. Aluminium

D. None of these

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Satellites burn off during re-entry to earth's atmosphere, because of the

A. Combustion with air

B. Gravitational pull by earth

C. Friction with earth's atmosphere

D. Loss in weight of the satellite

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Sudden fall of atmospheric pressure by a large amount is an indication of the

A. Rain

B. Cold wave

C. Storm

D. Fair weather

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Ammonia leakage in the refrigeration system is detected by

A. Sulphur stick, which on detection gives white smoke

B. Using chemical reagents

C. Its smell

D. Soap solution

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Lead is poured into the joints between two __________ pipes.

A. Cast iron

B. Steel

C. Concrete

D. Plastic

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Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

A. Cementite

B. Austenite

C. Martensite

D. Pearlite

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Which of the following is an acidic constituent of B.F. slag?

A.

B. FeO

C. MgO

D. CaO

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The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed as the

A. Fatigue strength

B. Creep strength

C. Resilience

D. Endurance limit

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All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.

A. Deuterium

B. Hydrogen

C. Neon

D. Helium

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Uniform ramming of sand in green sand moulding process leads to

A. Reduced chance of gas porosity

B. Greater dimensional stability of the casting

C. Uniform flow of molten metal into the mould cavity

D. Less sand expansion type of casting defect

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Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

A. +4000

B. -4000

C. 10000

D. -10000

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Larger length & diameter water pipes are made by

A. Electrical resistance welding

B. Die casting

C. Semi-centrifugal casting

D. Continuous casting

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An abrupt and sudden fall in the reading of barometer is an indication of the

A. Storm

B. Rain

C. Clear weather

D. Cold wave

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With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.

A. Supercharging

B. Wall temperature

C. Compression ratio

D. Engine speed

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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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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

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__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

A. Tensile

B. Fatigue

C. Impact

D. None of these

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A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.

A. 0.01

B. 0.1

C. 0.25

D. 0.5

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Methyl orange indicator turns

A. Orange yellow in alkaline medium

B. Orange yellow in acidic medium

C. Colourless in acidic medium

D. Colourless in basic medium

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Tempering of a material does not improve its

A. Machinability

B. Toughness

C. Internal stress level

D. Softness

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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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Which of the following is not an explosive?

A. TNT

B. CMC

C. RDX

D. Lead azide

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The same volume of all gases is representative of their

A. Specific gravities

B. Densities

C. Gas characteristic constants

D. Molecular weights

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Pick out the correct combination about the role of various additives used in polymers.

A. Plasticiser: increases the polymer strength

B. Heat stabiliser: increases the maximum service temperature

C. Fillers: Does not affect the property of polymer but increases its weight

D. Lubricants: increases the flexibility of polymers

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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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Capacity & power requirement for an air compressor working at high altitude compared to sealevel will be

A. More

B. Less

C. Same

D. Either more or less; depends on the climatic conditions

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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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Accepted Answer

B. Sensible heat is removed and the latent heat is added

Evaporative cooling process employs a combination of cooling and humidification in which the

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Dielectric

The process of removal of scale formed during hot rolling of steel is termed as

The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

Compressed dry air is used as the cutting fluid, while machining

Satellites burn off during re-entry to earth's atmosphere, because of the

Sudden fall of atmospheric pressure by a large amount is an indication of the

Ammonia leakage in the refrigeration system is detected by

Lead is poured into the joints between two __________ pipes.

Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Which of the following is an acidic constituent of B.F. slag?

The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed as the

All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.

Uniform ramming of sand in green sand moulding process leads to

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

Larger length & diameter water pipes are made by

An abrupt and sudden fall in the reading of barometer is an indication of the

With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.

Absolute zero pressure can be attained at a temperature of

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).

__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.

Methyl orange indicator turns

Tempering of a material does not improve its

Joining of thin foils is preferred to be done by

Which of the following is not an explosive?

The same volume of all gases is representative of their

Pick out the correct combination about the role of various additives used in polymers.

Which of the following gases cause global warming?

Capacity & power requirement for an air compressor working at high altitude compared to sealevel will be

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

Also checkout

Evaporative cooling process employs a combination of cooling and humidification in which the

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Dielectric

The process of removal of scale formed during hot rolling of steel is termed as

The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

Compressed dry air is used as the cutting fluid, while machining

Satellites burn off during re-entry to earth's atmosphere, because of the

Sudden fall of atmospheric pressure by a large amount is an indication of the

Ammonia leakage in the refrigeration system is detected by

Lead is poured into the joints between two __________ pipes.

Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Which of the following is an acidic constituent of B.F. slag?

The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed as the

All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.

Uniform ramming of sand in green sand moulding process leads to

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

Larger length & diameter water pipes are made by

An abrupt and sudden fall in the reading of barometer is an indication of the

With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.

Absolute zero pressure can be attained at a temperature of

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

__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.

Methyl orange indicator turns

Tempering of a material does not improve its

Joining of thin foils is preferred to be done by

Which of the following is not an explosive?

The same volume of all gases is representative of their

Pick out the correct combination about the role of various additives used in polymers.

Which of the following gases cause global warming?

Capacity & power requirement for an air compressor working at high altitude compared to sealevel will be

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

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).