Alloys having more than 80% copper are generally more

Question

Alloys having more than 80% copper are generally more

A. Abrasion resistant

B. Corrosion resistant

C. Prone to season cracking

D. Machinable

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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

Discuss this answer

Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

A. Atoms

B. Neutrons

C. Nucleons

D. Electrons

Discuss this answer

With increase in steam pressure, its specific volume decreases

A. Rapidly first and then slowly

B. Linearly

C. Slowly first and then rapidly

D. Exponentially

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The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres

A. 25

B. 35

C. 55

D. 75

Discuss this answer

Normalising of an object does not

A. Refine coarse grain structure obtained during hot working

B. Improve ductility

C. Improve yield strength

D. Improve mechanical properties

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The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

A. Ambient

B. Dry bulb

C. Dew point

D. Wet bulb

Discuss this answer

Eutectoid composition of carbon steel at room temperature is

A. Cementite

B. Pearlite

C. Martensite

D. Ferrite

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Work done by a/an __________ process is determined by ∫p. dv

A. Adiabatic

B. Quasi-static

C. Isothermal

D. Isentropic

Discuss this answer

Methyl orange indicator turns

A. Orange yellow in alkaline medium

B. Orange yellow in acidic medium

C. Colourless in acidic medium

D. Colourless in basic medium

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Most important property of steels for use in automobile bodies is the

A. Formability

B. Yield strength

C. Toughness

D. Resilience

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The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the

A. Work hardening

B. Bauschinger effect

C. Creeping effect

D. Stress recovery effect

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Pick out the wrong conversion of absolute & kinematic viscosities.

A. 1 stoke = 1 cm²/sec

B. 1 N.sec/m² = 10 paise

C. 1 stoke = 1 m²/sec

D. 1 m²/sec = 10⁴ stokes

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A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

A. Aqueous tension

B. Saturated humidity

C. Vapor pressure

D. Absolute humidity

Discuss this answer

Pick out the wrong statement.

A. Seam welding, projection welding & spot welding are the classification of electrical resistance welding

B. Electrode tip in spot welding is of copper and the tip diameter should be equal to t (where, t = plate thickness to be welded)

C. In spot welding, two pieces to be joined are overlapped and placed between two electrodes

D. Mild steel sheet cannot be spot welded

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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)

Discuss this answer

When the wavelength of incident X-rays increases, the angle of diffraction

A. Decreases

B. Increases

C. Remain constant

D. Shows no systematic variation

Discuss this answer

In __________ process, there is an increase in entropy with no degradation of energy.

A. Isothermal expansion

B. Isochoric heat addition

C. Polytropic expansion

D. Isobaric heat addition

Discuss this answer

Dephosphorization of molten pig iron is favoured by

A. Oxidising and basic slag

B. Reducing and basic slag

C. High activity co-efficient of phosphorous in metal

D. Oxidising and neutral slag

Discuss this answer

Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is

A. Black

B. Silver grey

C. Green

D. Yellow

Discuss this answer

Which of the following is used to produce draught in the locomotive boilers?

A. Chimney

B. Induced draught fan

C. Forced draught fan

D. Steam jet arrangement

Discuss this answer

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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In Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, = velocity gradient).

A.

B.

C.

D.

Discuss this answer

Normalising does not __________ of a metal.

A. Improve machinability & tensile strength

B. Remove internal stresses

C. Refine the structure

D. Remove strains caused by cold working

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As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the __________ joint.

A. Butt

B. Lap

C. Welded

D. None of these

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Euler number is defined as the ratio of inertia force to __________ force.

A. Pressure

B. Elastic

C. Gravity

D. Viscous

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According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

A. 0.5

B. 2

C. √2

D. √3/2

Discuss this answer

The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

A. Parabolic

B. Hyperbolic

C. Straight line

D. None of these

Discuss this answer

Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?

A. Aluminium

B. Copper

C. Titanium

D. Stainless steel

Discuss this answer

The specific gravity of coal depends mainly on its __________ content.

A. Carbon

B. Volatile matter

C. Ash

D. Moisture

Discuss this answer

Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C.

A. 80-120

B. 200-300

C. 600-800

D. 1000-1100

Discuss this answer

Accepted Answer

B. Corrosion resistant

Alloys having more than 80% copper are generally more

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

With increase in steam pressure, its specific volume decreases

The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres

Normalising of an object does not

The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

Eutectoid composition of carbon steel at room temperature is

Work done by a/an __________ process is determined by ∫p. dv

Methyl orange indicator turns

Most important property of steels for use in automobile bodies is the

The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the

Pick out the wrong conversion of absolute & kinematic viscosities.

A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

Pick out the wrong statement.

An oxidation process is accompanied with decrease in the

When the wavelength of incident X-rays increases, the angle of diffraction

In __________ process, there is an increase in entropy with no degradation of energy.

Dephosphorization of molten pig iron is favoured by

Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is

Which of the following is used to produce draught in the locomotive boilers?

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

In Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, = velocity gradient).

Normalising does not __________ of a metal.

As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the __________ joint.

Euler number is defined as the ratio of inertia force to __________ force.

According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?

The specific gravity of coal depends mainly on its __________ content.

Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C.

Also checkout

Alloys having more than 80% copper are generally more

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

With increase in steam pressure, its specific volume decreases

The approximate height of a blast furnace having a useful volume of 2000 m3 is about __________ metres

Normalising of an object does not

The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

Eutectoid composition of carbon steel at room temperature is

Work done by a/an __________ process is determined by ∫p. dv

Methyl orange indicator turns

Most important property of steels for use in automobile bodies is the

The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the

Pick out the wrong conversion of absolute & kinematic viscosities.

A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

Pick out the wrong statement.

An oxidation process is accompanied with decrease in the

When the wavelength of incident X-rays increases, the angle of diffraction

In __________ process, there is an increase in entropy with no degradation of energy.

Dephosphorization of molten pig iron is favoured by

Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is

Which of the following is used to produce draught in the locomotive boilers?

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

In Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, = velocity gradient).

Normalising does not __________ of a metal.

As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the __________ joint.

Euler number is defined as the ratio of inertia force to __________ force.

According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?

The specific gravity of coal depends mainly on its __________ content.

Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C.

Also checkout

The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres