Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process?

Question

Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process?

A. Galvanising

B. Tinning

C. Sherardizing

D. None of these

Share this question with your friends

Show all Chemical Engineering Basics MCQ

Comment

Atomic __________ is a whole number for an element.

A. Number

B. Weight

C. Radius

D. None of these

Discuss this answer

Closeness of packing is maximum in case of __________ crystal lattice.

A. Face centred

B. Simple cubic

C. Body centred

D. None of these

Discuss this answer

__________ is a special constituent of chlorophyll without which photosynthesis is not possible.

A. Calcium

B. Nitrogen

C. Phosphorous

D. Hydrogen

Discuss this answer

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v²)] (V - b) = RT, depends upon its

A. Pressure & temperature

B. Pressure & specific volume

C. Temperature & specific volume

D. Temperature only

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

Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.

A. 0.8

B. 7.8

C. 200

D. 10000

Discuss this answer

Percentage of argon (by volume) in dry atmospheric air is about

A. 0.09

B. 0.3

C. 0.57

D. 0.94

Discuss this answer

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

A. Gr^0.25, Gr

B. Gr^0.25, Gr^0.33

C. Gr, Gr^0.25

D. Gr^0.33, Gr^0.25

Discuss this answer

The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.

A. Tension

B. Shear

C. Compression

D. Bending & tension

Discuss this answer

The life of a ball bearing is inversely proportional to

A. (Load)¹

B. (Load)²

C. (Load)³

D. (Load)^0.33

Discuss this answer

__________ pipe is the most suitable for carrying sanitary drainage.

A. Stainless steel

B. Reinforced cement concrete

C. Cast iron

D. Asbestos cement

Discuss this answer

__________ metal is used as a bearing liner material.

A. Pewter

B. White

C. Babbitt

D. Gun

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

The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

A. Wetness

B. Mass flow rate

C. Both 'a' & 'b'

D. Neither 'a' nor 'b'

Discuss this answer

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

Ceramic compounds as compared to metallic compounds

A. Crystallise faster

B. Resist greater tensile stress at room temperature

C. Have higher melting temperature

D. Are better conductor of electricity at higher temperature

Discuss this answer

Isotropic materials have the same __________ in all directions.

A. Induced stresses

B. Density

C. Elastic properties

D. Thermal properties

Discuss this answer

Shampoos are commercially not available in the form of

A. Powder

B. Gaseous mixture

C. Solution

D. Emulsion

Discuss this answer

The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________ allowance.

A. Casting

B. Pattern

C. Draft

D. Distortion

Discuss this answer

Pick out the wrong statement about coating/electroplating of metals.

A. Phosphate coating is used as an excellent base for paints & enamels

B. Phosphate coating is less corrosion resistant than chromate coating

C. The base metal to be electroplated is normally made the cathode of the electrolytic cell and coating metal is made the anode

D. Calorising is the process of coating steel with chromium

Discuss this answer

In a good rimming steel

A. Carbon and silicon should be low

B. Silicon should be low but carbon should be high

C. Both silicon & carbon should be high

D. Silicon should be high but carbon should be low

Discuss this answer

A high pressure boiler generates steam at a pressure greater than __________ kg/cm².

A. 10

B. 30

C. 50

D. 80

Discuss this answer

Gratings is associated with the measurement of

A. Linear displacement

B. Concavity/convexity

C. Surface texture

D. Flatness

Discuss this answer

What is the value of entropy at 273°K?

A. 0

B. 1

C. ∞

D. None of these

Discuss this answer

Metal shots used in shot blasting are made of

A. Stellite

B. Steel

C. Bronze

D. Lead

Discuss this answer

When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively

A. Decreases & increases

B. Increases & increases

C. Increases & decreases

D. Decreases & decreases

Discuss this answer

The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

A. 3

B. 7

C. 11

D. 15

Discuss this answer

'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel)

A. V

B. V/2

C. 2V

D. 3V

Discuss this answer

A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?

A. Steel

B. Glass

C. Rubber

D. Brass

Discuss this answer

Shrinkage allowance on pattern is provided to compensate for shrinkage when the

A. Metal changes from liquid state to solid state at freezing temperature

B. Solid phase temperature drops from freezing temperature to the room temperature

C. Liquid metal temperature drops from pouring temperature to room temperature

D. Liquid metal temperature drops from pouring temperature to freezing temperature

Discuss this answer

Accepted Answer

C. Sherardizing

Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process?

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Atomic __________ is a whole number for an element.

Closeness of packing is maximum in case of __________ crystal lattice.

__________ is a special constituent of chlorophyll without which photosynthesis is not possible.

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v²)] (V - b) = RT, depends upon its

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

Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.

Percentage of argon (by volume) in dry atmospheric air is about

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.

The life of a ball bearing is inversely proportional to

__________ pipe is the most suitable for carrying sanitary drainage.

__________ metal is used as a bearing liner material.

Increasing sulphur content in pig iron tends to make it

The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

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)?

Ceramic compounds as compared to metallic compounds

Isotropic materials have the same __________ in all directions.

Shampoos are commercially not available in the form of

The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________ allowance.

Pick out the wrong statement about coating/electroplating of metals.

In a good rimming steel

A high pressure boiler generates steam at a pressure greater than __________ kg/cm².

Gratings is associated with the measurement of

What is the value of entropy at 273°K?

Metal shots used in shot blasting are made of

When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively

The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel)

A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?

Shrinkage allowance on pattern is provided to compensate for shrinkage when the

Also checkout

Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process?

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Atomic __________ is a whole number for an element.

Closeness of packing is maximum in case of __________ crystal lattice.

__________ is a special constituent of chlorophyll without which photosynthesis is not possible.

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v2)] (V - b) = RT, depends upon its

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

Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.

Percentage of argon (by volume) in dry atmospheric air is about

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.

The life of a ball bearing is inversely proportional to

__________ pipe is the most suitable for carrying sanitary drainage.

__________ metal is used as a bearing liner material.

Increasing sulphur content in pig iron tends to make it

The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

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)?

Ceramic compounds as compared to metallic compounds

Isotropic materials have the same __________ in all directions.

Shampoos are commercially not available in the form of

The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________ allowance.

Pick out the wrong statement about coating/electroplating of metals.

In a good rimming steel

A high pressure boiler generates steam at a pressure greater than __________ kg/cm2.

Gratings is associated with the measurement of

What is the value of entropy at 273°K?

Metal shots used in shot blasting are made of

When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively

The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel)

A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?

Shrinkage allowance on pattern is provided to compensate for shrinkage when the

Also checkout

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v²)] (V - b) = RT, depends upon its

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

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 high pressure boiler generates steam at a pressure greater than __________ kg/cm².