Explore topic-wise MCQs in Engineering.

Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is

Electronic structure of a material is generally studied by

Karbate is

To improve the machinability of steel by its softening, it is subjected to

Iron rust is

Which one has the maximum tensile strength out of the following ?

Which of the following is not a nickel based alloy ?

Coke oven walls are lined with __________ bricks.

Urea autoclave is made of

Constantan used in thermocouples is an alloy of

A material is able to retain the deformation permanently by virtue of its

__________ steel is widely used for the manufacture of motor car crankshafts.

Mixing vessel used for the chlorination of methane to produce methyl chloride is made of

The loss of strength in compression which occurs, when there is a gain of strength in tension due to over loading is called

High speed cutting tool steels contain about __________ percent of tungsten.

Hastelloy C is a good material of construction in chemical process industry, since it is

The 'bomb' in the bomb calorimeter is made of

Which of the following is produced by condensation polymerisation ?

The crystal structure of most of the common metals is

Telfon (PTFE) is corroded by

Ball bearings are normally made of __________ steel.

The electrical conductivity of a __________ decreases with rise in temperature.

Which one occupies the lowermost position in the electromotive series of metals ?

Addition of nickel to copper improves its

Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing.

For storing water and acid free benzol, use a __________ vessel.

The chlorinator used in the manufacture of DDT is made of

Reduction in the grain size reduces the __________ of the material.

Age hardening is concerned with

Which of the following undergoes granular fracture ?

A material is called 'ductile', if it can be

A chemical change takes place when iron

Evaporator used for concentrating tomato juice is made of

High carbon steel contains more than __________ percent carbon.

The main constituent of carborundum is __________ carbide.

Carbon is present in steel wholly in the

Carbon supply in pack carburising process is in the form of

In SO₃ absorber (Contact Process), packing material used is of

Presence of manganese in alloy steel improves its

The increase in hardness of metal due to its cold working is termed as the __________ hardening.

Copper is dissolved from its ore by H₂SO₄ in a percolation tank made of

Bearings subjected to light load are made of

Maximum permissible sulphur content in steel is __________ percent.

Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysterisis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%) ?

Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of

A material capable of undergoing large permanent deformation, when subjected to tension is termed as

Mercury is transported in metal containers made of

Most of the common metals have __________ crystal structure.

Cast iron is a __________ material.

Hydrocyanic acid is not shipped in