Which of the following terminology is used for the temperature at which new grains are formed in a metal?

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Which of the following terminology is used for the temperature at which new grains are formed in a metal?

A. Eutectic temperature

B. Lower critical temperature

C. Recrystallisation temperature

D. Upper critical temperature

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Chromium molybdenum steel cannot be welded using __________ welding.

A. Thermit

B. Electrical resistance

C. Oxy-acetylene

D. Any of these

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Resilience of a bolt can be increased by increasing its

A. Length

B. Shank diameter

C. Head diameter

D. None of these

Discuss this answer

Which of the following is not a ferromagnetic material?

A. Nickel

B. Cobalt

C. Aluminium

D. Iron

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__________ of test specimens is not involved in any hardness testing method.

A. Fracture

B. Indentation

C. Wear

D. Scratch

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In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?

A. Zirconia

B. Alumina

C. Bakelite

D. Tungsten carbide

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Current employed in resistance welding ranges from __________ kVA/.

A. 1.2 to 2.5

B. 4.5 to 6.2

C. 7.5 to 8.5

D. 10.5 to 15.5

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Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

A. Lower cost

B. Abundant availability

C. Resistance to vegetable acids as the tin plate are commercially used in 'canning' industry

D. None of these

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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 most serious manufacturing defect from fracture toughness point of view is

A. Surface roughness

B. Pores

C. Spherical inclusion

D. Crack

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Compressed dry air is used as the cutting fluid, while machining

A. Steel

B. Cast iron

C. Aluminium

D. None of these

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Dies for wire drawing are generally made of

A. Mild steel

B. Stainless steel

C. Carbides

D. High carbon steel

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Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.
A. Induced draft fan
B. Economiser
C. Air preheater
D. Steam superheater Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories?

A. A, C, B, D

B. D, B, C, A

C. D, C, B, A

D. D, A, B, C

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The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

A. 0.2

B. 0.4

C. 0.6

D. 0.8

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The most detrimental impurity in high pressure boiler feed water is

A. Suspended salt

B. Dissolved salt

C. Silica

D. Turbidity

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Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils?

A. Elaiden test

B. Reichert-Meissl value test

C. Hunter value test

D. Iodine value test

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Runge-Kutta method is used to solve a/an

A. Ordinary differential equation of nth order

B. Simultaneous non-linear equation

C. Linear differential equation

D. None of these

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With increase in compression ratio, the volumetric efficiency of air compressor

A. Increases

B. Decreases

C. Remain same

D. May increase or decrease (depends on the suction pressure)

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A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

A. 0

B. 0.33

C. 0.44

D. 0.25

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Alloy powder manufactured by the following process have spherical shapes.

A. Electrochemical deposition

B. Gaseous reduction

C. Atomisation

D. Mechanical attrition

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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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In extrusion of metals, which of the following statement is true?

A. Speed of the extruded material is same as that of ram speed

B. Redundant work is a function of the die angle

C. Relative motion between the billet surface and the container wall is always present

D. Hollow ram is used for indirect extrusion

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Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

A. Grashoff number

B. Grashoff number & Reynolds number

C. Reynolds number

D. Grashoff number & Prandtl number

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For a spontaneous natural process at constant temperature and pressure, the free energy of the system always

A. Increases

B. Decreases

C. Remain constant

D. Increases to a maximum before decreasing

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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

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Glass reacts with

A. H₂SO₃

B. HF

C. HNO₃

D. K₂Cr₂O₇

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Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

A. 15

B. 25

C. 10

D. 30

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Tin based white metals are used, where bearings are subjected to

A. High pressure & load

B. Low pressure & load

C. High temperature

D. Large surface wear

Discuss this answer

In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of

A. Stainless steel

B. Mild steel

C. High speed steel

D. High carbon steel

Discuss this answer

X-rays are

A. Positively charged

B. Negatively charged

C. Neutral

D. Of higher wavelength than visible light

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A jig is used while __________ a hole.

A. Boring

B. Counter boring

C. Drilling

D. Enlarging

Discuss this answer

Accepted Answer

C. Recrystallisation temperature

Which of the following terminology is used for the temperature at which new grains are formed in a metal?

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Chromium molybdenum steel cannot be welded using __________ welding.

Resilience of a bolt can be increased by increasing its

Which of the following is not a ferromagnetic material?

__________ of test specimens is not involved in any hardness testing method.

In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?

Current employed in resistance welding ranges from __________ kVA/.

Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

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

The most serious manufacturing defect from fracture toughness point of view is

Compressed dry air is used as the cutting fluid, while machining

Dies for wire drawing are generally made of

Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.
A. Induced draft fan
B. Economiser
C. Air preheater
D. Steam superheater Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories?

The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

The most detrimental impurity in high pressure boiler feed water is

Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils?

Runge-Kutta method is used to solve a/an

With increase in compression ratio, the volumetric efficiency of air compressor

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

Alloy powder manufactured by the following process have spherical shapes.

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

In extrusion of metals, which of the following statement is true?

Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

For a spontaneous natural process at constant temperature and pressure, the free energy of the system always

Water-tube boiler is the one, in which

Glass reacts with

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

Tin based white metals are used, where bearings are subjected to

In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of

X-rays are

A jig is used while __________ a hole.

Also checkout

Which of the following terminology is used for the temperature at which new grains are formed in a metal?

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Chromium molybdenum steel cannot be welded using __________ welding.

Resilience of a bolt can be increased by increasing its

Which of the following is not a ferromagnetic material?

__________ of test specimens is not involved in any hardness testing method.

In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?

Current employed in resistance welding ranges from __________ kVA/.

Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

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

The most serious manufacturing defect from fracture toughness point of view is

Compressed dry air is used as the cutting fluid, while machining

Dies for wire drawing are generally made of

Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.A. Induced draft fanB. EconomiserC. Air preheaterD. Steam superheater Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories?

The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

The most detrimental impurity in high pressure boiler feed water is

Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils?

Runge-Kutta method is used to solve a/an

With increase in compression ratio, the volumetric efficiency of air compressor

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

Alloy powder manufactured by the following process have spherical shapes.

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

In extrusion of metals, which of the following statement is true?

Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

For a spontaneous natural process at constant temperature and pressure, the free energy of the system always

Water-tube boiler is the one, in which

Glass reacts with

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is __________ mm.

Tin based white metals are used, where bearings are subjected to

In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of

X-rays are

A jig is used while __________ a hole.

Also checkout

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.