In the diving apparatus, helium is used along with oxygen, because it is

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In the diving apparatus, helium is used along with oxygen, because it is

A. Easily available

B. Not soluble in blood at high pressure

C. Lighter than nitrogen

D. Completely miscible with oxygen

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Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

A. Annealing

B. Toughening

C. Work hardening

D. Tempering

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Plants produce carbohydrates from the CO2 present in the atmosphere by

A. Polymerisation

B. Photochemical reaction

C. Oxidation

D. None of these

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The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is

A. Full annealing

B. Bright annealing

C. Patenting

D. None of these

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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

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At the point of boundary layer separation in fluid flow, the

A. Shear stress is maximum

B. Velocity gradient is flat

C. Density variation is maximum

D. Shear stress is zero

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Brazing filler metal used for joining steel plates

A. Melts below the melting points of base metals

B. Melts below 300°C

C. Is copper phosphorous alloy

D. Is copper

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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

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Which of the following fastening devices has a head at one end and a nut fitted to the other?

A. Bolt

B. Stud

C. Top bolt

D. None of these

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Enzymes belong to the category of

A. Proteins

B. Carbohydrates

C. Vitamins

D. Fats

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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

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More than 95% of __________ is present in corundum.

A. SiO₂

B. Al₂O₃

C. CaSiO₂

D. MgO

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Load cells used for the measurement of weight has

A. Compact & rugged construction with an accuracy of 0.1 to 1%

B. No moving parts and incurs negligible deflection under load

C. Provision of thermal compensation and is hermetically sealed

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

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Iron content in Indian iron ore is about __________ percent.

A. 80-85

B. 60-65

C. 40-45

D. 20-25

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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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Shaft/rotor speed is most accurately measured by a

A. Frequency counter

B. Tachometer

C. Strobometer

D. Speedometer

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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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__________ has the highest melting point out of the following.

A. Tungsten

B. Zirconium

C. Molybdenum

D. Tantalum

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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

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Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?

A. Styrofoam

B. Lucite

C. Perspex

D. Plexiglass

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The majority charge carriers in p-type silicon are

A. Free electrons

B. Ions

C. Conduction electrons

D. Holes

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Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

A. E = 2G (1 + v)

B. E = G (1 + v)

C. E = G (1 + v)/2

D. E = 2G (1 + 2v)

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Fatigue resistance of a material is measured by the

A. Elastic limit

B. Ultimate tensile strength

C. Young's modulus

D. Endurance limit

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Which of the following is not a characteristic observed in material failure by fatigue fracture?

A. Plastic deformation of material does not occur

B. Initiation of crack from below the surface does not occur

C. Initiation of crack occurs on the surface of the machine part

D. Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface

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Property responsible for the talcum powder to cling to the skin is the

A. Capillary action

B. Adhesion

C. Cohesion

D. Surface tension

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Wood is a/an __________ material.

A. Amorphous

B. Cellular

C. Homogeneous

D. Granular

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Common salt is produced from sea water in India generally by the __________ method.

A. Freeze drying

B. Solar evaporation

C. Electrolytic

D. None of these

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Annealing of white cast iron produces __________ iron.

A. Grey

B. Nodular

C. Malleable

D. Spheroidal

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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

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Pick out the wrong statement.

A. For a pressure vessel to be classified as 'thin vessel', the ratio of wall thickness to mean radius is less than 0.1

B. For calculating forces and efficiency of riveted joint, either rivet diameter or rivet hole diameter is used in case of pressure vessel and in structural work

C. Longitudinal joint is normally made butt joint to maintain the circularity of the vessel

D. Maximum diameter of the opening provided in a pressure vessel, which does not require any compensation is 200 mm

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The 'laughing gas' is

A. Nitrous oxide

B. Nitric oxide

C. Nitrogen trioxide

D. Nitrogen pentoxide

Discuss this answer

Accepted Answer

B. Not soluble in blood at high pressure

In the diving apparatus, helium is used along with oxygen, because it is

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

Plants produce carbohydrates from the CO2 present in the atmosphere by

The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is

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

At the point of boundary layer separation in fluid flow, the

Brazing filler metal used for joining steel plates

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)?

Which of the following fastening devices has a head at one end and a nut fitted to the other?

Enzymes belong to the category of

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

More than 95% of __________ is present in corundum.

Load cells used for the measurement of weight has

Iron content in Indian iron ore is about __________ percent.

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

Shaft/rotor speed is most accurately measured by a

Laser is a device to produce

__________ has the highest melting point out of the following.

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

Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?

The majority charge carriers in p-type silicon are

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

Fatigue resistance of a material is measured by the

Which of the following is not a characteristic observed in material failure by fatigue fracture?

Property responsible for the talcum powder to cling to the skin is the

Wood is a/an __________ material.

Common salt is produced from sea water in India generally by the __________ method.

Annealing of white cast iron produces __________ iron.

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

Pick out the wrong statement.

The 'laughing gas' is

Also checkout

In the diving apparatus, helium is used along with oxygen, because it is

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

Plants produce carbohydrates from the CO2 present in the atmosphere by

The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is

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

At the point of boundary layer separation in fluid flow, the

Brazing filler metal used for joining steel plates

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)?

Which of the following fastening devices has a head at one end and a nut fitted to the other?

Enzymes belong to the category of

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

More than 95% of __________ is present in corundum.

Load cells used for the measurement of weight has

Iron content in Indian iron ore is about __________ percent.

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

Shaft/rotor speed is most accurately measured by a

Laser is a device to produce

__________ has the highest melting point out of the following.

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

Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?

The majority charge carriers in p-type silicon are

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

Fatigue resistance of a material is measured by the

Which of the following is not a characteristic observed in material failure by fatigue fracture?

Property responsible for the talcum powder to cling to the skin is the

Wood is a/an __________ material.

Common salt is produced from sea water in India generally by the __________ method.

Annealing of white cast iron produces __________ iron.

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

Pick out the wrong statement.

The 'laughing gas' is

Also checkout

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)?

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