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

Question

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

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Young's modulus of a material is the measure of its

A. Stiffness

B. Malleability

C. Creep resistance

D. Tensile strength

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The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the

A. Pipe roughness & pipe diameter

B. Fluid velocity

C. Type of flowing fluid

D. Both 'b' & 'c'

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Which of the following is not the function of a volute casing provided in a centrifugal pump?

A. To reduce the head loss in discharge

B. To increase the pump efficiency

C. To collect liquid from the periphery of the impeller and to transmit it to the delivery pipe at constant velocity

D. To increase the pump discharge rate

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Which of the following is resistant to the action of both heat & chemicals?

A. Borosilicate glass

B. Silica glass

C. Soda lime glass

D. None of these

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Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

A. Scratch

B. Indentation

C. Dynamic

D. Rebound

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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

Which of the following represents the correct time-temperature curve when a block of metal is heated above room temperature & then left to cool in the room following Newton's law of cooling in which the rate of temperature drop will go on decreasing with the passage of time.

A.

B.

C.

D.

Discuss this answer

Induced draft fans provided in large thermal power plant boilers have __________ blades.

A. Forward curved

B. Backward curved

C. Double curved

D. Radial or straight

Discuss this answer

The dimensional formula of bulk modulus of elasticity is same as that of the

A. Pressure

B. Density

C. Force

D. None of these

Discuss this answer

While the bin cards are used in the effective stores management, the queuing theory is associated with the __________ time.

A. Waiting

B. Idle

C. Inspection

D. Tool replacement

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Constituents of stellite are

A. Zinc, copper & nickel

B. Cobalt, chromium & tungsten

C. Zinc, aluminium & nickel

D. Nickel, cobalt & vanadium

Discuss this answer

Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

A. Re^0.5, Re^0.8

B. Re^0.8, Re^-0.5

C. Re^0.8, Re^0.5

D. Re^-0.8, Re^0.5

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

A. Molybdenum

B. Nickel

C. Manganese

D. Chromium

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In a boundary layer developed along the flow, the pressure decreases in the downstream direction. The boundary layer thickness in this case will

A. Decrease gradually

B. Increase gradually

C. Increase rapidly

D. Remain constant

Discuss this answer

Titanium is produced by __________ of Ti Cl₄.

A. Electrolytic reduction

B. Calcium reduction

C. Magnesium reduction

D. Thermal dissociation

Discuss this answer

Tesla metre per ampere (T. m/A) is the unit for the measurement of

A. Magnetic susceptibility

B. Magnetic moment

C. Permeability of free space

D. Flux density

Discuss this answer

Lead pencil contains

A. Graphite

B. Lead sulphide

C. Lead

D. Both (B) & (C)

Discuss this answer

Most of the phosphorous present in the blast furnace burden enters into

A. Hot metal

B. Flue gases

C. Slag

D. Refractory lining

Discuss this answer

The most abundant metal present in the earth's crust is;

A. Iron

B. Copper

C. Titanium

D. Aluminium

Discuss this answer

A pycnometer is used for the measurement of

A. Flow rate of molten metal

B. Specific gravity of a liquid

C. Composition of alloys

D. Concentration of a solution

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Suitability of steel for its use in cable is judged by its strength in

A. Tension

B. Compression

C. Torsion

D. Shear

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Laser is a device to produce

A. Gamma rays

B. Microwaves

C. A beam of white light

D. A beam of coherent light

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Cupola produces __________ iron.

A. Pig

B. Cast

C. Wrought

D. Carbon free

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Vernier calipers cannot be used to measure the

A. I.D. & O.D. of the shaft

B. Thickness of parts

C. Depth of holes

D. Clearance between two mating surfaces

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Magnesium is present in

A. Haemoglobin

B. Chlorophyll

C. Hypo solution

D. None of these

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For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by

A.

B.

C.

D.

Discuss this answer

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

A. Burning

B. Intensive oxidation

C. Evaporation

D. None of these

Discuss this answer

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

A. Time

B. Square root of time

C. Square of time

D. Cube of time

Discuss this answer

__________ wire is never used for making the heating element.

A. Nichrome

B. Kanthal

C. Invar

D. None of these

Discuss this answer

Fire in fuel gas pipelines is extinguished most effectively by

A. Spraying water

B. Blanketting the area with nitrogen atmosphere

C. Fire fighting foam

D. None of these

Discuss this answer

Accepted Answer

A. Decreases & increases

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Young's modulus of a material is the measure of its

The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the

Which of the following is not the function of a volute casing provided in a centrifugal pump?

Which of the following is resistant to the action of both heat & chemicals?

Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

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

Which of the following represents the correct time-temperature curve when a block of metal is heated above room temperature & then left to cool in the room following Newton's law of cooling in which the rate of temperature drop will go on decreasing with the passage of time.

Induced draft fans provided in large thermal power plant boilers have __________ blades.

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While the bin cards are used in the effective stores management, the queuing theory is associated with the __________ time.

Constituents of stellite are

Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

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

In a boundary layer developed along the flow, the pressure decreases in the downstream direction. The boundary layer thickness in this case will

Titanium is produced by __________ of Ti Cl₄.

Tesla metre per ampere (T. m/A) is the unit for the measurement of

Lead pencil contains

Most of the phosphorous present in the blast furnace burden enters into

The most abundant metal present in the earth's crust is;

A pycnometer is used for the measurement of

Suitability of steel for its use in cable is judged by its strength in

Laser is a device to produce

Cupola produces __________ iron.

Vernier calipers cannot be used to measure the

Magnesium is present in

For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

__________ wire is never used for making the heating element.

Fire in fuel gas pipelines is extinguished most effectively by

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Young's modulus of a material is the measure of its

The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the

Which of the following is not the function of a volute casing provided in a centrifugal pump?

Which of the following is resistant to the action of both heat & chemicals?

Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

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

Which of the following represents the correct time-temperature curve when a block of metal is heated above room temperature & then left to cool in the room following Newton's law of cooling in which the rate of temperature drop will go on decreasing with the passage of time.

Induced draft fans provided in large thermal power plant boilers have __________ blades.

The dimensional formula of bulk modulus of elasticity is same as that of the

While the bin cards are used in the effective stores management, the queuing theory is associated with the __________ time.

Constituents of stellite are

Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

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

In a boundary layer developed along the flow, the pressure decreases in the downstream direction. The boundary layer thickness in this case will

Titanium is produced by __________ of Ti Cl4.

Tesla metre per ampere (T. m/A) is the unit for the measurement of

Lead pencil contains

Most of the phosphorous present in the blast furnace burden enters into

The most abundant metal present in the earth's crust is;

A pycnometer is used for the measurement of

Suitability of steel for its use in cable is judged by its strength in

Laser is a device to produce

Cupola produces __________ iron.

Vernier calipers cannot be used to measure the

Magnesium is present in

For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

__________ wire is never used for making the heating element.

Fire in fuel gas pipelines is extinguished most effectively by

Also checkout

Titanium is produced by __________ of Ti Cl₄.