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

Question

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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Which one can be directly solidified from gaseous state without entering into liquid state?

A. Helium

B. Oxygen

C. Carbon dioxide

D. None of these

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

A. Slip

B. Fracture

C. Winning

D. Dislocation

Discuss this answer

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

Discuss this answer

Resilience of a bolt can be increased by increasing its

A. Length

B. Shank diameter

C. Head diameter

D. None of these

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For a first order chemical reaction, the concentration of the reactant decreases __________ with time.

A. Linearly

B. Exponentially

C. Logarithmically

D. Inversely

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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'

Discuss this answer

Electrostatic separation of minerals from each other is based on their differences in the following property.

A. Densities

B. Magnetic permeabilities

C. Electrical conductivities

D. Hardness

Discuss this answer

Use of water as a manometric liquid suffers from the disadvantage of its

A. Low vapour pressure

B. Corrosive nature

C. High vapour pressure

D. High boiling point

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The refrigerant freon-12 is chemically

A. CCl₂F₂

B. CCl₃F

C. CClF₃

D. CCl₄F

Discuss this answer

Ganister contains maximum percentage of

A. FeO

B. SiO2

C. MgO

D. MnO2

Discuss this answer

Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

A. Steel

B. Glass wood

C. Copper

D. Fireclay bricks

Discuss this answer

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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A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

A. Aqueous tension

B. Saturated humidity

C. Vapor pressure

D. Absolute humidity

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Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

A. 15

B. 25

C. 10

D. 30

Discuss this answer

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.

A. Lack of free

B. Excess of

C. Decrease in

D. None of these

Discuss this answer

One of the methods of purification of leach liquor is ion exchange, which involves

A. Exchange between two liquid phases

B. Exchange between a gaseous phase and a liquid phase

C. Exchange between a liquid phase and an organic resin phase

D. Exchange between a solid phase and a gas phase

Discuss this answer

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

Discuss this answer

Young's modulus of a material is the measure of its

A. Stiffness

B. Malleability

C. Creep resistance

D. Tensile strength

Discuss this answer

Out of the following, which will fracture most readity, when hit with a hard hammer?

A. Brass

B. Bronze

C. German silver

D. Cast iron

Discuss this answer

In practice, the compression ratio of compression-ignition (CI) engine ranges from

A. 15 to 25

B. 5 to 10

C. 40 to 55

D. 60 to 70

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Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is

A. 10 atm-1

B. 105 atm-1

C. 10 (dimensionless)

D. 105 (dimensionless)

Discuss this answer

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

A. Wet bulb

B. Dry bulb

C. Saturation

D. Dew point

Discuss this answer

Encyclopaedia of Chemical Technology has been

A. Authored by Kirk Othmer

B. Edited by Perry and Chilton

C. Edited by Kirk Othmer

D. Authored by Perry and Chilton

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The leaching solvent used in Baeyer's process for the purification of bauxite is

A. Ammonium hydroxide

B. Sodium carbonate

C. Sodium hydroxide

D. Ammonium carbonate

Discuss this answer

A form of stress corrosion failure termed as 'season cracking' is generally observed in

A. Thermosetting polymers

B. High carbon steels

C. Brasses

D. Borosilicate glasses

Discuss this answer

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

A. Surface roughness

B. Pores

C. Spherical inclusion

D. Crack

Discuss this answer

Stellite is a __________ material.

A. Ferrous

B. Ceramic

C. Cemented carbide

D. Non-ferrous cast alloy cutting tool

Discuss this answer

Which of the following is a boiler accessory
i.e., not a boiler mounting?

A. Blow off cock

B. Feed check valve

C. Feed water pump

D. Stop valve

Discuss this answer

Increasing sulphur content in pig iron tends to make it

A. Soft

B. Hard

C. Tough

D. Ductile & malleable

Discuss this answer

Case hardening is not done by

A. Nitriding

B. Hot dipping

C. Electroplating

D. Both b & c

Discuss this answer

Accepted Answer

D. Engine speed

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which one can be directly solidified from gaseous state without entering into liquid state?

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

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

Resilience of a bolt can be increased by increasing its

For a first order chemical reaction, the concentration of the reactant decreases __________ with time.

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

Electrostatic separation of minerals from each other is based on their differences in the following property.

Use of water as a manometric liquid suffers from the disadvantage of its

The refrigerant freon-12 is chemically

Ganister contains maximum percentage of

Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

In chemical dehumidification process

A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.

One of the methods of purification of leach liquor is ion exchange, which involves

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

Young's modulus of a material is the measure of its

Out of the following, which will fracture most readity, when hit with a hard hammer?

In practice, the compression ratio of compression-ignition (CI) engine ranges from

Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

Encyclopaedia of Chemical Technology has been

The leaching solvent used in Baeyer's process for the purification of bauxite is

A form of stress corrosion failure termed as 'season cracking' is generally observed in

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

Stellite is a __________ material.

Which of the following is a boiler accessory
i.e., not a boiler mounting?

Increasing sulphur content in pig iron tends to make it

Case hardening is not done by

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which one can be directly solidified from gaseous state without entering into liquid state?

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

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

Resilience of a bolt can be increased by increasing its

For a first order chemical reaction, the concentration of the reactant decreases __________ with time.

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

Electrostatic separation of minerals from each other is based on their differences in the following property.

Use of water as a manometric liquid suffers from the disadvantage of its

The refrigerant freon-12 is chemically

Ganister contains maximum percentage of

Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

In chemical dehumidification process

A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is __________ mm.

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.

One of the methods of purification of leach liquor is ion exchange, which involves

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

Young's modulus of a material is the measure of its

Out of the following, which will fracture most readity, when hit with a hard hammer?

In practice, the compression ratio of compression-ignition (CI) engine ranges from

Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

Encyclopaedia of Chemical Technology has been

The leaching solvent used in Baeyer's process for the purification of bauxite is

A form of stress corrosion failure termed as 'season cracking' is generally observed in

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

Stellite is a __________ material.

Which of the following is a boiler accessory i.e., not a boiler mounting?

Increasing sulphur content in pig iron tends to make it

Case hardening is not done by

Also checkout

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

Which of the following is a boiler accessory
i.e., not a boiler mounting?