Which of the following is produced by condensation polymerisation?
Select an option to see the answer and solution.
Chemical Engineering · all questionsMaterials And Construction
Materials And Construction
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
503
Questions
2/26
Page
Pick an option on a question to see the right answer and solution.
Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously.
Select an option to see the answer and solution.
Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it.
Select an option to see the answer and solution.
Dies for wire drawing are generally made of
Select an option to see the answer and solution.
High resistance electrical heating elements/wire are not made of
Select an option to see the answer and solution.
The material used in the filament of electric bulbs is
Select an option to see the answer and solution.
The main purpose of galvanising iron sheets is to
Select an option to see the answer and solution.
Which of the following metals in not used for coating of the base metal to guard it against corrosion?
Select an option to see the answer and solution.
__________ is a donor impurity for semi-conductors.
Select an option to see the answer and solution.
Hydrochloric acid is stored in a __________ steel vessel.
Select an option to see the answer and solution.
Copper is dissolved from its ore by H2SO4 in a percolation tank made of
Select an option to see the answer and solution.
Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.
Select an option to see the answer and solution.
Alpha iron is stable __________ °C.
Select an option to see the answer and solution.
__________ iron is produced, when molten pig iron is allowed to cool gradually.
Select an option to see the answer and solution.
Which of the following is not a nickel based alloy?
Select an option to see the answer and solution.
Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing.
Select an option to see the answer and solution.
Maximum consumption of lead is in the manufacture of
Select an option to see the answer and solution.
Coke oven walls are lined with __________ bricks.
Select an option to see the answer and solution.
Babbit metal (used for making bearings) comprises of
Select an option to see the answer and solution.
The chlorinator used in the manufacture of DDT is made of
Select an option to see the answer and solution.