Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be

Question

Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be

A. 9.5 : 1

B. 12.5 : 1

C. 15.5 : 1

D. 18.5 : 1

Share this question with your friends

Show all Chemical Engineering Basics MCQ

Comment

Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

A. Sorbite

B. Bainite

C. Martensite

D. Troostite

Discuss this answer

For separating small pieces of metal from engine oil of a car, the best separating technique is the

A. Chromatography

B. Evaporation

C. Filtration

D. Fractional distillation

Discuss this answer

An alloy of Fe - 0.4 % C is

A. Cast iron

B. Hypo-eutectoid steel

C. Hyper-eutectoid steel

D. Eutectoid steel

Discuss this answer

Ultimate strength in tension as compared to that in shear for steel is

A. Half

B. One third

C. One and half times

D. One fourth

Discuss this answer

Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution

A. A₁ is more alkaline than solution A₂

B. A₁ is highly acidic

C. A₂ is very slightly acidic

D. Both (B) & (C)

Discuss this answer

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

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

Discuss this answer

The hardenability of steel decreases with

A. Decrease in dislocation density

B. Increase in solutionising temperature

C. Increase in strength

D. Decrease in grain size

Discuss this answer

Silicon in steel

A. Makes it usable in almost all magnetic circuits where alternating current is used

B. Increases its electrical resistivity and decreases the hysteresis loss

C. Is present upto 5% & 4% respectively when used in transformers & motor armatures

D. All 'a', 'b' & 'c'

Discuss this answer

Superheating of steam is done at constant

A. Enthalpy

B. Entropy

C. Pressure

D. Volume

Discuss this answer

The substance used as a smoke screen in warfare is

A. C2H2

B. SiCl4

C. P2O5

D. PCl5

Discuss this answer

Friction factor for fluid flow in pipe does not depend upon the

A. Pipe length

B. Pipe roughness

C. Fluid density & viscosity

D. Mass flow rate of fluid

Discuss this answer

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

Fibre reinforced plastic (FRP) are

A. Made of glass fibre and thermoplastic resins

B. Anisotropic

C. Made of thermosetting resin and glass fibre

D. Both 'b' & 'c'

Discuss this answer

Reduction in the grain size reduces the __________ of the material.

A. Fatigue resistance

B. Tensile strength

C. Creep resistance

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

Discuss this answer

Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.

A. Volume

B. Pressure

C. Heat

D. None of these

Discuss this answer

Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

A. 746

B. 3000

C. 1000

D. 550

Discuss this answer

A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec² is

A. 8.82

B. 9.81

C. 10.88

D. 0.95

Discuss this answer

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

Discuss this answer

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

A. Suspension

B. Emulsion

C. Gel

D. Solution

Discuss this answer

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

A. 5

B. 15

C. 30

D. 45

Discuss this answer

The minimum and the maximum number of members required to form a Private Limited Joint Stock Company are respectively

A. 7 and 30

B. 10 and 50

C. 2 and 50

D. 13 and 55

Discuss this answer

Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?

A. Anodising

B. Tempering

C. Carburising

D. Annealing

Discuss this answer

All of the following alloying elements of steel increases hardness but sacrifice ductility, except

A. Nickel

B. Vanadium

C. Molybdenum

D. Chromium

Discuss this answer

Blast furnace slag is mainly molten

A. Sand

B. Magnesium silicate

C. Calcium silicate

D. Iron pyrite

Discuss this answer

Cold chisels hammers are made of

A. High speed steel

B. High carbon steel

C. Forged steel

D. Mild steel

Discuss this answer

Dephosphorization of molten pig iron is favoured by

A. Oxidising and basic slag

B. Reducing and basic slag

C. High activity co-efficient of phosphorous in metal

D. Oxidising and neutral slag

Discuss this answer

Increasing the carbon content of steel

A. Reduces the upper shelf energy

B. Increasing the ductility transition temperature

C. Decreases brittleness

D. Decreases hardness

Discuss this answer

Speisses is a mixture of the following:

A. Arsenides of heavy metals

B. Antimonides of heavy metals

C. Arsenides & antimonides of heavy metals

D. Iron, cobalt and nickel

Discuss this answer

The Al₂O₃ content of cryolite in Hall- Heroult cell is maintained between __________ percent.

A. 2-5

B. 18-20

C. 12-15

D. 6-12

Discuss this answer

Accepted Answer

A. 9.5 : 1

Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

For separating small pieces of metal from engine oil of a car, the best separating technique is the

An alloy of Fe - 0.4 % C is

Ultimate strength in tension as compared to that in shear for steel is

Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution

Nusselt number/Biot number varies

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

The hardenability of steel decreases with

Silicon in steel

Superheating of steam is done at constant

The substance used as a smoke screen in warfare is

Friction factor for fluid flow in pipe does not depend upon the

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

Fibre reinforced plastic (FRP) are

Reduction in the grain size reduces the __________ of the material.

Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.

Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec² is

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).

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

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

The minimum and the maximum number of members required to form a Private Limited Joint Stock Company are respectively

Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?

All of the following alloying elements of steel increases hardness but sacrifice ductility, except

Blast furnace slag is mainly molten

Cold chisels hammers are made of

Dephosphorization of molten pig iron is favoured by

Increasing the carbon content of steel

Speisses is a mixture of the following:

The Al₂O₃ content of cryolite in Hall- Heroult cell is maintained between __________ percent.

Also checkout

Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

For separating small pieces of metal from engine oil of a car, the best separating technique is the

An alloy of Fe - 0.4 % C is

Ultimate strength in tension as compared to that in shear for steel is

Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution

Nusselt number/Biot number varies

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

The hardenability of steel decreases with

Silicon in steel

Superheating of steam is done at constant

The substance used as a smoke screen in warfare is

Friction factor for fluid flow in pipe does not depend upon the

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

Fibre reinforced plastic (FRP) are

Reduction in the grain size reduces the __________ of the material.

Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.

Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is

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

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

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

The minimum and the maximum number of members required to form a Private Limited Joint Stock Company are respectively

Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?

All of the following alloying elements of steel increases hardness but sacrifice ductility, except

Blast furnace slag is mainly molten

Cold chisels hammers are made of

Dephosphorization of molten pig iron is favoured by

Increasing the carbon content of steel

Speisses is a mixture of the following:

The Al2O3 content of cryolite in Hall- Heroult cell is maintained between __________ percent.

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

A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec² is

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).

The Al₂O₃ content of cryolite in Hall- Heroult cell is maintained between __________ percent.