Chemical Engineering — Test 28

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Question 1

Maximum change in the hardness of martensite occurs in the carbon content range of _____________ percent in steel?

Question 2

Speed of a submarine in deep sea & that of an aeroplane is measured by a/an___________________?

Question 3

The main charge in blast furnace is usually___________________?

Question 4

Identify the correct statement with reference to the extractive metallurgy of aluminium ?

Question 5

Calorific value of ____________________ are almost same?

Question 6

_______________ is not a case hardening process ?

Question 7

The atmospheric temperature during melting of ice/snow (in the atmosphere)_________________?

Question 8

Silicon percentage in acid resistant cast iron is about ___________________?

Question 9

Thermal equivalent of electrical power in practical calculation is _______________ kcal/kWh ?

Question 10

One of the methods of purification of leach liquor is ion exchange, which involves_________________?