Chemical Engineering — Test 13
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Question 1
Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when_________________?
Question 2
Corrosion of metals cannot be prevented by its__________________?
Question 3
Absolute zero pressure can be attained at a temperature of___________________?
Question 4
Recrystallisation temperature of steel is ______________________ °C?
Question 5
Which of the following does not have a sharp melting point ?
Question 6
The usual energy consumption in electric arc furnace steel making is _____________ KWh/ton of steel ?
Question 7
On being hit with a hammer, ___________________ will readily fracture?
Question 8
Nuclear fission of one atom of uranium-235 produces the energy equivalent to about ____________ MeV?
Question 9
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____________________?
Question 10
Fibre glass is a composite material of_________________?