In chemical dehumidification process

Question

In chemical dehumidification process

A. Wet bulb temperature increases

B. Dry bulb temperature remains constant

C. Dew point temperature increases

D. Dry bulb temperature increases

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Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

A. Annealing

B. Toughening

C. Work hardening

D. Tempering

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Triple point of water is

A. 0°F

B. 492°R

C. 0°K

D. -273°C

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Pearlite comprises of

A. 87% cementite & 13% Fe

B. 87% ferrite & 13% cementite

C. 93.33% ferrite & 6.67% C

D. 87% ferrite & 13% C

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High relative humidity decreases the evaporative process and as the temperature is increased, the relative humidity decreases. The comfort range for human body is the ambient temperature of 22 to 27°C with relative humidity ranging from __________ percent.

A. 5 to 10

B. 15 to 25

C. 45 to 50

D. 75 to 80

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In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?

A. Tin

B. Lead

C. Zinc

D. Glass

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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 ratio of the shear stress to the principal stress on a principal plane is

A. 0

B. 1

C. 1/2

D. 1/3

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Boiling point of water gets lowered at high altitudes (e.g., hills), because

A. Temperature is low

B. Atmospheric pressure is low

C. Atmospheric pressure is high

D. None of these

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Cemented carbide tools are not suitable for cutting

A. Aluminium

B. Brass

C. Cast iron

D. Steel

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The following type of bonding is strongly directional in solids.

A. Vander Waal's

B. Ionic

C. Metallic

D. Covalent

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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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Which of the following materials does not form adherent oxide film on surface?

A. Copper

B. Nickel

C. Aluminium

D. Gold & silver

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In a neutral solution

A. H⁺ ions are absent

B. OH^- ions are absent

C. Both H⁺ and OH^- ions are present in very small but equal concentration

D. None of these

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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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The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres

A. 25

B. 35

C. 55

D. 75

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Nickel is a __________ material.

A. Ferromagnetic

B. Semi-conductor

C. Paramagnetic

D. Ferroelectric

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The following thermocouple may be used for measuring temperature upto 1873°K.

A. Chromel-alumel

B. Copper-constantan

C. Platinum-platinum rhodium

D. Iron-constantan

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To counteract the bad effects of strain hardening on a cold formed part, it must be

A. Tempered

B. Normalised

C. Annealed

D. Hardened

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With decrease in the grain size of a material, its creep resistance

A. Increases

B. Decreases

C. Remain constant

D. Either (A) or (B); depends on the material

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__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

A. Beryllium

B. Zirconia

C. Alumina

D. Magnesia

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The substance used as a smoke screen in warfare is

A. C2H2

B. SiCl4

C. P2O5

D. PCl5

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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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Silicon percentage in acid resistant cast iron is about

A. 4

B. 8

C. 14

D. 20

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The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.

A. 768

B. 908

C. 1400

D. 1539

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Nusselt number/Biot number varies

A. Inversely with thermal conductivity

B. Directly with heat transfer co-efficient

C. Directly with thermal conductivity

D. Inversely with the dimension of the solid

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The most serious manufacturing defect from fracture toughness point of view is

A. Surface roughness

B. Pores

C. Spherical inclusion

D. Crack

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Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when

A. Strain rate is increased

B. Grain size is increased

C. Prior cold deformation is increased

D. Not affected by any of the above parameters

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One ton of refrigeration is not equivalent to the heat removal rate of

A. 200 BTU/minute

B. 50 kcal/minute

C. 50 kJ/sec

D. 3.5 KW

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__________ circuit is most commonly used to measure strain with the help of a strain gauge.

A. Ballast

B. Voltage balancing potentiometric

C. Simple current sensitive

D. None of these

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Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.

A. Invar

B. Hastelloy

C. Duralumin

D. Monel metal

Discuss this answer

Accepted Answer

B. Dry bulb temperature remains constant

In chemical dehumidification process

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

Triple point of water is

Pearlite comprises of

High relative humidity decreases the evaporative process and as the temperature is increased, the relative humidity decreases. The comfort range for human body is the ambient temperature of 22 to 27°C with relative humidity ranging from __________ percent.

In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?

Which of the following is an ore dressing operation?

The ratio of the shear stress to the principal stress on a principal plane is

Boiling point of water gets lowered at high altitudes (e.g., hills), because

Cemented carbide tools are not suitable for cutting

The following type of bonding is strongly directional in solids.

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

Which of the following materials does not form adherent oxide film on surface?

In a neutral solution

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

The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres

Nickel is a __________ material.

The following thermocouple may be used for measuring temperature upto 1873°K.

To counteract the bad effects of strain hardening on a cold formed part, it must be

With decrease in the grain size of a material, its creep resistance

__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

The substance used as a smoke screen in warfare is

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

Silicon percentage in acid resistant cast iron is about

The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.

Nusselt number/Biot number varies

The most serious manufacturing defect from fracture toughness point of view is

Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when

One ton of refrigeration is not equivalent to the heat removal rate of

__________ circuit is most commonly used to measure strain with the help of a strain gauge.

Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.

Also checkout

In chemical dehumidification process

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

Triple point of water is

Pearlite comprises of

High relative humidity decreases the evaporative process and as the temperature is increased, the relative humidity decreases. The comfort range for human body is the ambient temperature of 22 to 27°C with relative humidity ranging from __________ percent.

In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?

Which of the following is an ore dressing operation?

The ratio of the shear stress to the principal stress on a principal plane is

Boiling point of water gets lowered at high altitudes (e.g., hills), because

Cemented carbide tools are not suitable for cutting

The following type of bonding is strongly directional in solids.

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

Which of the following materials does not form adherent oxide film on surface?

In a neutral solution

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

The approximate height of a blast furnace having a useful volume of 2000 m3 is about __________ metres

Nickel is a __________ material.

The following thermocouple may be used for measuring temperature upto 1873°K.

To counteract the bad effects of strain hardening on a cold formed part, it must be

With decrease in the grain size of a material, its creep resistance

__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

The substance used as a smoke screen in warfare is

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

Silicon percentage in acid resistant cast iron is about

The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.

Nusselt number/Biot number varies

The most serious manufacturing defect from fracture toughness point of view is

Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when

One ton of refrigeration is not equivalent to the heat removal rate of

__________ circuit is most commonly used to measure strain with the help of a strain gauge.

Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.

Also checkout

The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres

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