Pick out the wrong statement.

Question

Pick out the wrong statement.

A. Weldability of high carbon steel is poorer compared to low carbon steel

B. Invar is a magnetic alloy

C. Magnetic permeability of the diamagnetic material is less than one

D. Martenistic transformation never goes to completion (i.e., 100%) at room temperature

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Wave length of X-rays is about 1 angstrom; however it cannot pass through a sheet of

A. Paper

B. Cloth

C. Lead

D. Aluminium

Discuss this answer

In TIG welding, thoriated tungsten electrodes are used, because it

A. Has higher current carrying capacity

B. Has better electron emissivity

C. Is stronger than ordinary tungsten

D. Is easy to prepare

Discuss this answer

Air standard Otto cycle is more efficient than the diesel cycle for the same

A. Heat addition & compression ratio

B. Heat addition & pressure

C. Compression ratio & pressure

D. Cylinder dimension & rpm

Discuss this answer

Oxygen cylinders used for autogenous (cutting/welding) purposes are

A. Seamless & made of steel

B. Heat treated before use

C. Made by sand casting

D. Welded steel cylinders

Discuss this answer

Upto the critical radius of insulation, added insulation, will

A. Increase the heat loss

B. Decrease heat loss and will have no effect beyond that

C. Decrease heat flux

D. Reduce convection heat loss compared to conduction heat less

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Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.

A. Hexagonal close, packed (hcp)

B. Face centred cubic (fcc)

C. Body centred cubic (bcc)

D. Simple cubic

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

A. 746

B. 3000

C. 1000

D. 550

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The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x^0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)

A. x^1.5

B. x^0.8

C. x^-1.5

D. x^-0.8

Discuss this answer

Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.

A. Parting

B. Synthetic

C. Loam

D. Dry

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The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10^-16 m²S^-1 and it is 1.94 × 10^-14 m²S^{- 1} at 1200 K. The activation energy (in k. J.mole-1) for the diffusion of Ni in Cu is

A. 130

B. 180

C. 230

D. 250

Discuss this answer

Primary designation of steel is based on its

A. Hardness & tensile strength

B. Carbon content

C. Iron content

D. Alloying elements content

Discuss this answer

Steel is welded using the __________ flame.

A. Carburising

B. Neutral

C. Oxidising

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

Discuss this answer

For an ideal gas, C_p - C_v is

A. R

B. -R

C. 0

D. (3/2) R

Discuss this answer

The difference between gross & net calorific values of fuel is due to the

A. Sensible heat carried away by the flue gases

B. Heat carried away by the steam from the moisture content of the fuel

C. Heat lost by radiation

D. Heat carried away by steam from the combustion of hydrogen in the fuel

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

Air intake for an air compressor should be preferably taken from

A. A site, where cooling towers are located nearby

B. A site, where open coal yard in located nearby

C. An air conditioned room maintained at a temperature of 18°C

D. An outside atmosphere at 10°C

Discuss this answer

Colour comparator is used to measure the

A. pH value

B. Electrode potential

C. Colour intensity

D. None of these

Discuss this answer

Theoretical volume of oxygen required for complete combustion of 1Nm³ of acetylene, in oxyacetylene welding is __________ Nm³.

A. 0.5

B. 1

C. 1/3

D. 2.5

Discuss this answer

Silicon percentage in the silicon steel used for electrical appliances/equipments is

A. 0.3-0.4

B. 12-14

C. 3-4

D. 20-25

Discuss this answer

If a solid is compressed adiabatically in its elastic range, its __________ remains constant

A. Internal energy

B. Enthalpy

C. Entropy

D. Temperature

Discuss this answer

Normalising of a casting does not

A. Induce stresses in it

B. Refine its grain structure

C. Reduce segregation

D. Improve its mechanical properties

Discuss this answer

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

A. 7

B. 10

C. 12

D. 17

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

Spherical shape of mercury droplets is due to its

A. High viscosity

B. Low surface tension

C. High density

D. High surface tension

Discuss this answer

Which of the following is not used as a bearing material?

A. Copper-lead alloys

B. Babbitts

C. Bronzes

D. Cermets

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Which of the, following is not associated with the functioning of a petrol engine?

A. Compression ignition system

B. Spark plug

C. Carburettor

D. Otto cycle

Discuss this answer

Which of the following is not categorised as the ore agglomeration process?

A. Nodulising

B. Pelletising

C. Balling

D. Briquetting

Discuss this answer

Which of the following heat treatment processes is usually applied to castings?

A. Tempering

B. Annealing

C. Normalising

D. Carburising

Discuss this answer

Adhesives

A. Cant be used in the form of pressure sensitive tapes

B. Cant join two dissimilar metals

C. Cure instantaneously after application on a surface

D. None of these

Discuss this answer

Powder metallurgy process does not make metal powder by

A. Atomisation

B. Grinding/milling

C. Hammering

D. Electrolytic deposition

Discuss this answer

Accepted Answer

B. Invar is a magnetic alloy

Pick out the wrong statement.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Wave length of X-rays is about 1 angstrom; however it cannot pass through a sheet of

In TIG welding, thoriated tungsten electrodes are used, because it

Air standard Otto cycle is more efficient than the diesel cycle for the same

Oxygen cylinders used for autogenous (cutting/welding) purposes are

Upto the critical radius of insulation, added insulation, will

Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.

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

The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x^0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)

Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.

The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10^-16 m²S^-1 and it is 1.94 × 10^-14 m²S^{- 1} at 1200 K. The activation energy (in k. J.mole-1) for the diffusion of Ni in Cu is

Primary designation of steel is based on its

Steel is welded using the __________ flame.

For an ideal gas, C_p - C_v is

The difference between gross & net calorific values of fuel is due to the

Spark plug is provided in a/an

Air intake for an air compressor should be preferably taken from

Colour comparator is used to measure the

Theoretical volume of oxygen required for complete combustion of 1Nm³ of acetylene, in oxyacetylene welding is __________ Nm³.

Silicon percentage in the silicon steel used for electrical appliances/equipments is

If a solid is compressed adiabatically in its elastic range, its __________ remains constant

Normalising of a casting does not

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

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

Spherical shape of mercury droplets is due to its

Which of the following is not used as a bearing material?

Which of the, following is not associated with the functioning of a petrol engine?

Which of the following is not categorised as the ore agglomeration process?

Which of the following heat treatment processes is usually applied to castings?

Adhesives

Powder metallurgy process does not make metal powder by

Also checkout

Pick out the wrong statement.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Wave length of X-rays is about 1 angstrom; however it cannot pass through a sheet of

In TIG welding, thoriated tungsten electrodes are used, because it

Air standard Otto cycle is more efficient than the diesel cycle for the same

Oxygen cylinders used for autogenous (cutting/welding) purposes are

Upto the critical radius of insulation, added insulation, will

Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.

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

The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)

Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.

The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10-16 m2S-1 and it is 1.94 × 10-14 m2S- 1 at 1200 K. The activation energy (in k. J.mole-1) for the diffusion of Ni in Cu is

Primary designation of steel is based on its

Steel is welded using the __________ flame.

For an ideal gas, Cp - Cv is

The difference between gross & net calorific values of fuel is due to the

Spark plug is provided in a/an

Air intake for an air compressor should be preferably taken from

Colour comparator is used to measure the

Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene welding is __________ Nm3.

Silicon percentage in the silicon steel used for electrical appliances/equipments is

If a solid is compressed adiabatically in its elastic range, its __________ remains constant

Normalising of a casting does not

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

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

Spherical shape of mercury droplets is due to its

Which of the following is not used as a bearing material?

Which of the, following is not associated with the functioning of a petrol engine?

Which of the following is not categorised as the ore agglomeration process?

Which of the following heat treatment processes is usually applied to castings?

Adhesives

Powder metallurgy process does not make metal powder by

Also checkout

The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x^0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)

The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10^-16 m²S^-1 and it is 1.94 × 10^-14 m²S^{- 1} at 1200 K. The activation energy (in k. J.mole-1) for the diffusion of Ni in Cu is

For an ideal gas, C_p - C_v is

Theoretical volume of oxygen required for complete combustion of 1Nm³ of acetylene, in oxyacetylene welding is __________ Nm³.

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