Tip of the match stick contains a mixture of

Question

Tip of the match stick contains a mixture of

A. K + S

B. K + S + K₂Cr₂O₇

C. S + K₂Cr₂O₇ + White P

D. None of these

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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 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

A. Carbon

B. Manganese

C. Both 'a' nor 'b'

D. Neither 'a' nor 'b'

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The cathode in an electrochemical cell always carries

A. Negative charge

B. Positive charge

C. Zero charge

D. Positive or negative charge depending upon the nature of the cell

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Brinell Hardness Number (BHN) for talc is approximately in the range of

A. 1-5

B. 20-30

C. 100-150

D. 200-250

Discuss this answer

The rolling process cannot be used to produce

A. Plates

B. Rods

C. Tubes

D. Wires

Discuss this answer

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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Stellite is a __________ material.

A. Ferrous

B. Ceramic

C. Cemented carbide

D. Non-ferrous cast alloy cutting tool

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An oxidation process is accompanied with decrease in the

A. Number of electrons

B. Oxidation number

C. Number of ions

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

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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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Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

A. E = 2G (1 + v)

B. E = G (1 + v)

C. E = G (1 + v)/2

D. E = 2G (1 + 2v)

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__________ is the most suitable lubricant for drawing mild steel wires?

A. Kerosene

B. Water

C. Sodium stearate

D. Lime water

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Nickel is a __________ material.

A. Ferromagnetic

B. Semi-conductor

C. Paramagnetic

D. Ferroelectric

Discuss this answer

A material being tested for endurance strength is subjected to the __________ load.

A. Impact

B. Completely reversed

C. Dynamic

D. Static & dynamic

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The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic law of oxidation is given by

A.

B.

C.

D.

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Lead pencil contains

A. Graphite

B. Lead sulphide

C. Lead

D. Both (B) & (C)

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Calorific value of __________ are almost same.

A. Lignite & anthracite coal

B. Lignite & coal gas

C. Petrol & diesel

D. Coal gas & natural gas

Discuss this answer

Maximum permissible air velocity in pipelines is about __________ metre/second.

A. 5

B. 10

C. 20

D. 40

Discuss this answer

The 'laughing gas' is

A. Nitrous oxide

B. Nitric oxide

C. Nitrogen trioxide

D. Nitrogen pentoxide

Discuss this answer

A common disinfectant used in village wells for disinfection of water is

A. Free chlorine

B. Bromine

C. Iodine

D. Potassium permanganate

Discuss this answer

Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.

A. Horizontal

B. Vertical

C. Inclined

D. Any

Discuss this answer

Electrometallurgical methods of metal extraction is normally used for those metals

A. Whose oxide/ore is not reduced by carbon

B. Which fall in the category of alkali & alkaline earth metals

C. Which stands higher in the electrochemical series of the metal

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

Discuss this answer

A material subjected __________ must have high resilience.

A. Shock loading

B. Vibration

C. Fatigue

D. Tension

Discuss this answer

Which of the following equipments is used for liquid dispersion?

A. Packed column

B. Venturi scrubber

C. Bubble cap plate column

D. Wetted wall column

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In inventory control theory, the economic order quantity (EOQ) is the

A. Lot size corresponding to break even analysis

B. Average level of inventory

C. Optimum lot size

D. None of these

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Stainless steel is welded with difficulty because of

A. Its high melting temperature

B. Chances of cracking

C. Oxide film formation

D. Chromium carbide formation

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The activity of pure hydrogen gas at 1000°C and 5 atm pressure

A. Is always less than 1

B. Is always greater than 1

C. Can be 5

D. Depends on the choice of the standard state

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What is the value of entropy at 273°K?

A. 0

B. 1

C. ∞

D. None of these

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For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg)?

A. Propane and acetylene

B. Propane and LPG

C. Sewage gas and gobar gas

D. B.F gas and coke oven gas

Discuss this answer

In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

A. Less

B. More

C. Equal

D. Unpredictable

Discuss this answer

Spark plug is provided in a/an

A. Engine having carburettor

B. Diesel engine

C. Compression ignition engine

D. Both (B) & (C)

Discuss this answer

Accepted Answer

C. S + K₂Cr₂O₇ + White P

Tip of the match stick contains a mixture of

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Dielectric

The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

The cathode in an electrochemical cell always carries

Brinell Hardness Number (BHN) for talc is approximately in the range of

The rolling process cannot be used to produce

The same volume of all gases is representative of their

Stellite is a __________ material.

An oxidation process is accompanied with decrease in the

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

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

__________ is the most suitable lubricant for drawing mild steel wires?

Nickel is a __________ material.

A material being tested for endurance strength is subjected to the __________ load.

The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic law of oxidation is given by

Lead pencil contains

Calorific value of __________ are almost same.

Maximum permissible air velocity in pipelines is about __________ metre/second.

The 'laughing gas' is

A common disinfectant used in village wells for disinfection of water is

Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.

Electrometallurgical methods of metal extraction is normally used for those metals

A material subjected __________ must have high resilience.

Which of the following equipments is used for liquid dispersion?

In inventory control theory, the economic order quantity (EOQ) is the

Stainless steel is welded with difficulty because of

The activity of pure hydrogen gas at 1000°C and 5 atm pressure

What is the value of entropy at 273°K?

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg)?

In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

Spark plug is provided in a/an

Also checkout

Tip of the match stick contains a mixture of

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Dielectric

The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

The cathode in an electrochemical cell always carries

Brinell Hardness Number (BHN) for talc is approximately in the range of

The rolling process cannot be used to produce

The same volume of all gases is representative of their

Stellite is a __________ material.

An oxidation process is accompanied with decrease in the

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

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

__________ is the most suitable lubricant for drawing mild steel wires?

Nickel is a __________ material.

A material being tested for endurance strength is subjected to the __________ load.

The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic law of oxidation is given by

Lead pencil contains

Calorific value of __________ are almost same.

Maximum permissible air velocity in pipelines is about __________ metre/second.

The 'laughing gas' is

A common disinfectant used in village wells for disinfection of water is

Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.

Electrometallurgical methods of metal extraction is normally used for those metals

A material subjected __________ must have high resilience.

Which of the following equipments is used for liquid dispersion?

In inventory control theory, the economic order quantity (EOQ) is the

Stainless steel is welded with difficulty because of

The activity of pure hydrogen gas at 1000°C and 5 atm pressure

What is the value of entropy at 273°K?

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg)?

In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

Spark plug is provided in a/an

Also checkout

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg)?