The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then

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The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then

A. Wet bulb temperature=dry bulb temperature

B. Wet bulb temperature=dew point temperature

C. Saturation temperature=dew point temperature

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

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Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

A. Malleable iron

B. Grey cast iron

C. Chilled cast iron

D. White cast iron

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

Which of the following is not a principal alloying element for the structural steel?

A. Molybdenum

B. Nickel

C. Manganese

D. Chromium

Discuss this answer

The most suitable material of construction for a sewer to carry sewage under high pressure is

A. Asbestos cement

B. Steel

C. Cement concrete

D. Stoneware

Discuss this answer

Water-tube boiler is the one, in which

A. Water passes through tubes and flue gases around it

B. Tube carrying hot flue gases are immersed in a pool of water

C. Tubes are placed in vertical position

D. None of these

Discuss this answer

More than 95% of __________ is present in corundum.

A. SiO₂

B. Al₂O₃

C. CaSiO₂

D. MgO

Discuss this answer

Air-petrol ratio for maximum power generation in spark ignition engine is about

A. 6 : 1

B. 12 : 1

C. 18 : 1

D. 24 : 1

Discuss this answer

Which of the following metals is not subjected to electrolytic refining/purification?

A. Copper

B. Zinc

C. Tin

D. Aluminium

Discuss this answer

What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m². °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively.

A. 2

B. 8

C. 10

D. 40

Discuss this answer

The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

A. Equal to

B. Greater than

C. Less than

D. Either (A), (B) or (C); depends on the size of atom

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The surface tension of a liquid, at critical temperature is

A. Indeterminate

B. Zero

C. Infinity

D. Same as that at any other temperature

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Dew point temperature always gives an indication of the __________ of the moist air.

A. Dryness

B. Moisture content

C. Coolness

D. Latent heat

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Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

A. Below the yield point

B. Above the yield point

C. Below the elastic limit

D. At the elastic limit

Discuss this answer

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.

A. Copper

B. Steel

C. Aluminium

D. Brass

Discuss this answer

A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.

A. Independent of

B. Inversely proportional to

C. Directly proportional to

D. None of these

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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

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Lap joints are preferred over butt joints in soldering/brazing, because these joints are

A. Weaker in tension but stronger in shear

B. Weaker in shear but stronger in tension

C. Stronger in both shear and tension

D. The lap joints are easily made

Discuss this answer

Yield strength of a polycrystalline metal with an average grain size d, is proportional to

A. d^1/2

B. d^-1/2

C. d

D. d^-1

Discuss this answer

Steels with high carbon equivalent have poor Weldability, because in these steels during welding

A. Carbon and other alloying elements get oxidised from the weld pool

B. Excessive ferrite forms in the heat affected zone leading to poor toughness of the weld

C. Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld

D. Segregation of carbon and other element occurs in the weld pool leading to poor properties of the weld

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Which of the following materials has the poorest electrical conductivity?

A. Carbon

B. Aluminium

C. Silver

D. Stainless steel

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

For dynamic strain measurement, the Wheatstone bridge used is of __________ type.

A. Voltage sensitive null

B. Voltage sensitive deflected

C. Current sensitive deflected

D. None of these

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

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

Unit of viscosity in CGS system is

A.

B.

C.

D.

Discuss this answer

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

A. Lancing

B. Shot peening

C. Slugging

D. Spinning

Discuss this answer

Which of the following fastening devices has its both ends threaded?

A. Bolt

B. Stud

C. Set screw

D. Split nut

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

The most detrimental impurity in high pressure boiler feed water is

A. Suspended salt

B. Dissolved salt

C. Silica

D. Turbidity

Discuss this answer

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

A. X-rays

B. γ-rays

C. α-rays

D. β-rays

Discuss this answer

Accepted Answer

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

The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

Nusselt number/Biot number varies

Which of the following is not a principal alloying element for the structural steel?

The most suitable material of construction for a sewer to carry sewage under high pressure is

Water-tube boiler is the one, in which

More than 95% of __________ is present in corundum.

Air-petrol ratio for maximum power generation in spark ignition engine is about

Which of the following metals is not subjected to electrolytic refining/purification?

What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m². °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively.

The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

The surface tension of a liquid, at critical temperature is

Dew point temperature always gives an indication of the __________ of the moist air.

Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.

A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.

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

Lap joints are preferred over butt joints in soldering/brazing, because these joints are

Yield strength of a polycrystalline metal with an average grain size d, is proportional to

Steels with high carbon equivalent have poor Weldability, because in these steels during welding

Which of the following materials has the poorest electrical conductivity?

Silicon in steel

For dynamic strain measurement, the Wheatstone bridge used is of __________ type.

Speisses is a mixture of the following:

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

Unit of viscosity in CGS system is

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

Which of the following fastening devices has its both ends threaded?

Isotropic materials have the same __________ in all directions.

The most detrimental impurity in high pressure boiler feed water is

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

Also checkout

The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

Nusselt number/Biot number varies

Which of the following is not a principal alloying element for the structural steel?

The most suitable material of construction for a sewer to carry sewage under high pressure is

Water-tube boiler is the one, in which

More than 95% of __________ is present in corundum.

Air-petrol ratio for maximum power generation in spark ignition engine is about

Which of the following metals is not subjected to electrolytic refining/purification?

What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m2. °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively.

The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

The surface tension of a liquid, at critical temperature is

Dew point temperature always gives an indication of the __________ of the moist air.

Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.

A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.

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

Lap joints are preferred over butt joints in soldering/brazing, because these joints are

Yield strength of a polycrystalline metal with an average grain size d, is proportional to

Steels with high carbon equivalent have poor Weldability, because in these steels during welding

Which of the following materials has the poorest electrical conductivity?

Silicon in steel

For dynamic strain measurement, the Wheatstone bridge used is of __________ type.

Speisses is a mixture of the following:

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

Unit of viscosity in CGS system is

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

Which of the following fastening devices has its both ends threaded?

Isotropic materials have the same __________ in all directions.

The most detrimental impurity in high pressure boiler feed water is

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

Also checkout

What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m². °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively.

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