Wrought iron is never shaped by

Question

Wrought iron is never shaped by

A. Casting

B. Cold working

C. Forging

D. Welding

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Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

A. Preloaded spring

B. Piezoelectric

C. Bonded strain gauge

D. None of these

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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

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Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

A. A

B. l

C. A2

D. Both 'a' & 'b'

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Materials having __________ lattice structure are usually the most ductile.

A. Body centred cubic (bcc)

B. Hexagonal close packed (hcp)

C. Face centred cubic (fcc)

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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Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

A. Enthalpy

B. Relative humidity

C. Wet bulb temperature

D. Dew point temperature

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__________ joint is mostly used for joining pipes carrying water at low pressure.

A. Nipple

B. Socket

C. Union

D. Bell and spigot

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Addition of __________ to steel does not help in improving its machinability.

A. Sulphur

B. Silicon

C. Lead

D. Phosphorous

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Optical activity is a/an __________ property.

A. Additive

B. Constitutive

C. Both (A) & (B)

D. Neither (A) nor (B)

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Holes for riveting purposes should be preferably made by

A. Cutting torch

B. Drilling

C. Punching

D. None of these

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Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

A. V/A

B. V/A²

C. V²/A

D. V²/A²

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Window panes of aeroplanes are normally made of

A. Perspex (PMMA)

B. Teflon (PTFE)

C. Bakelite (phenol formaldehyde)

D. Polystyrene

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On being hit with a hammer, __________ will readily fracture.

A. Brass

B. Mild steel

C. Cast iron

D. Lead

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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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One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

A. 100

B. 900

C. 9000

D. 10000

Discuss this answer

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)

Discuss this answer

Pick out the correct statement about the condensation.

A. Filmwise condensation gives a lower heat transfer rate than the dropwise condensation

B. Suitable coating or vapour additive is used to promote film wise condensation

C. If a condensing liquid does not wet the surface dropwise, even then condensation will take place on it

D. Reynolds number of condensing liquid is based on its mass flow rate

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Boiler tube size is specified by its thickness and __________ diameter.

A. Outside

B. Inside

C. Mean

D. None of these

Discuss this answer

Pick out the wrong statement.

A. Geothermal energy is a non-conventional source of energy

B. Mass is converted into energy in both nuclear fission & fusion reaction

C. Inhalation of mercury vapour is not harmful for human beings

D. Inhalation of arsenic causes cancer

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__________ is not used as a material of construction in thermocouples.

A. Alumel

B. Rhodium

C. Constantan

D. Duralumin

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Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

A. Flanged iron

B. Collar

C. Flexible

D. Expansion

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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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The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________ times.

A. Two

B. Four

C. Six

D. Eight

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

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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

Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

A. Tensile strength

B. Compressive strength

C. Young's modulus

D. Thermal co-efficient of expansion

Discuss this answer

The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________ at room temperature.

A. Air

B. Water

C. Mercury

D. Alcohol

Discuss this answer

For the Stoke's law to be valid in the case of a falling sphere in a fluid, the

A. Reynolds number (based on sphere diameter) should be < 1

B. Flow around the sphere should be in turbulent region

C. Sphere must be metallic

D. Fluid density should be constant

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Silicon percentage in acid resistant cast iron is about

A. 4

B. 8

C. 14

D. 20

Discuss this answer

Which of the following material handling equipments is not suitable for moving materials in varying paths?

A. Hand trolley

B. Belt conveyor

C. Crane

D. Truck

Discuss this answer

Accepted Answer

A. Casting

Wrought iron is never shaped by

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

Nusselt number/Biot number varies

Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

Materials having __________ lattice structure are usually the most ductile.

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

Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

__________ joint is mostly used for joining pipes carrying water at low pressure.

Addition of __________ to steel does not help in improving its machinability.

Optical activity is a/an __________ property.

Holes for riveting purposes should be preferably made by

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

Window panes of aeroplanes are normally made of

On being hit with a hammer, __________ will readily fracture.

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

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

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

Pick out the correct statement about the condensation.

Boiler tube size is specified by its thickness and __________ diameter.

Pick out the wrong statement.

__________ is not used as a material of construction in thermocouples.

Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

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.

The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________ times.

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

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

Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________ at room temperature.

For the Stoke's law to be valid in the case of a falling sphere in a fluid, the

Silicon percentage in acid resistant cast iron is about

Which of the following material handling equipments is not suitable for moving materials in varying paths?

Also checkout

Wrought iron is never shaped by

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

Nusselt number/Biot number varies

Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

Materials having __________ lattice structure are usually the most ductile.

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

Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

__________ joint is mostly used for joining pipes carrying water at low pressure.

Addition of __________ to steel does not help in improving its machinability.

Optical activity is a/an __________ property.

Holes for riveting purposes should be preferably made by

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

Window panes of aeroplanes are normally made of

On being hit with a hammer, __________ will readily fracture.

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

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m- 1. k-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

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

Pick out the correct statement about the condensation.

Boiler tube size is specified by its thickness and __________ diameter.

Pick out the wrong statement.

__________ is not used as a material of construction in thermocouples.

Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

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.

The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________ times.

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

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

Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________ at room temperature.

For the Stoke's law to be valid in the case of a falling sphere in a fluid, the

Silicon percentage in acid resistant cast iron is about

Which of the following material handling equipments is not suitable for moving materials in varying paths?

Also checkout

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

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.