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Cupola produces __________ iron.

A. Pig

B. Cast

C. Wrought

D. Carbon free

Correct Answer :

B. Cast


Related Questions

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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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4

Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

A. 723

B. 959

C. 1147

D. 1493

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4

Which of the following gases cause global warming?

A. Carbon monoxide

B. Carbon dioxide

C. Nitrogen

D. Ozone

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4

Galvanic corrosion cannot be prevented by

A. Cathodic protection

B. Anodic protection

C. Usage of largest possible anodic area

D. Any one of these

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Drossing is a __________ operation.

A. Smelting

B. Dressing

C. Roasting

D. Dressing

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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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__________ is not a heat treatment process.

A. Cyaniding

B. Parkerizing

C. Austempering

D. Martempering

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Hardening of steel is not possible, unless it is heated __________ critical point.

A. Above the highest

B. Above the lowest

C. Between the first & second

D. Between the second & third

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Routing in production, planning & control is concerned with the

A. Sequence of operation to be performed

B. Progress of work performed

C. Authorisation of work to be performed

D. Balancing of load on machines

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4

The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

A. 3171Pa

B. 3567Pa

C. 1.01 × 105Pa

D. 5000Pa

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4

Angular displacement can be measured suitably by a

A. Shaft encoder

B. Linear variable differential transducer (LVDT)

C. Stroboscope

D. Tachometer

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With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.

A. Impact strength

B. Percent elongation

C. Hardness

D. Both 'b' & 'c'

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Solute atoms which cause yield point phenomenon in mild steel are/is

A. Aluminium

B. Boron

C. Carbon

D. Nitrogen

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4

Pick out the wrong statement.

A. The equivalent stiffness of two springs (of equal stiffness 'S') in series is S/2 while in parallel is 2S

B. For a helical spring, deflection is proportional to D3 (D = mean coil diameter) or d4 (d = wire diameter)

C. Crushing load or columns is less than the buckling load

D. Modulus of resilience is proportional to (stress at elastic limit)2

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4

The lightest non-inflammable gas is

A. H2

B. He

C. Ar

D. O2

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Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

A. 300

B. 800

C. 1400

D. 2000

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In condensers used in thermal power plants, steam is normally used in shell side and cooling water on the tube side, because of the reason that

A. Compared to the mass flow rate of cooling water, the rate of condensation of steam is invariably smaller

B. Maintaining vacuum on tube side is more difficult than that on the shell side

C. Water velocity can be increased conveniently to increase the overall heat transfer co-efficient because of its lower specific volume compared to steam

D. Condenser can act as a storage unit for condensed steam

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Titanium is produced by __________ of Ti Cl4.

A. Electrolytic reduction

B. Calcium reduction

C. Magnesium reduction

D. Thermal dissociation

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4

Stainless steel is welded using

A. Oxy-acetylene flame

B. Oxy-hydrogen flame

C. Arc welding

D. Inert gas arc welding

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Hot & cold working of material causes its __________ deformation.

A. Visco-elastic

B. Isotropic

C. Elastic

D. Plastic

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4

As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise.

A. 110

B. 85

C. 60

D. 45

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4

In case of simple harmonic motion, displacement is proportional to the

A. Velocity

B. Acceleration

C. Both (A) & (B)

D. Neither (A) nor (B)

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4

The 'laughing gas' is

A. Nitrous oxide

B. Nitric oxide

C. Nitrogen trioxide

D. Nitrogen pentoxide

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Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

A. Vickers hardness test

B. Shore scleroscope test

C. Brinell hardness test

D. Rockwell hardness test

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4

Faraday's law of electrolysis is related to the

A. Cation speed

B. Atomic number of the cation

C. Equivalent mass of the electrolyte

D. None of these

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4

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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4

The minimum and the maximum number of members required to form a Private Limited Joint Stock Company are respectively

A. 7 and 30

B. 10 and 50

C. 2 and 50

D. 13 and 55

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4

Neutrons are present in all atoms except that of

A. He

B. C

C. H

D. Ar

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Eutectoid composition of carbon steel at room temperature is

A. Cementite

B. Pearlite

C. Martensite

D. Ferrite

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Removal of non-condensable from steam or other vapour is termed as the __________ process.

A. Condensation

B. Deaeration

C. Scavenging

D. Exhaust