Q. Zinc is not used

View solution

Q. Refined acetic acid storage vessel are made of

View solution

Q. Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets.

View solution

Q. Constantan is an alloy of

View solution

Q. Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese.

View solution

Q. White cast iron is not

View solution

Q. Galvanised iron is

View solution

Q. German silver used for decorative purposes contains maximum percentage of

View solution

Q. The metals occuring at the lower most position in the electromotive series

View solution

Q. The main purpose of galvanising iron sheets is to

View solution

Q. The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon.

View solution

Q. Invar used in thermocouples is an alloy of nickel and

View solution

Q. Nickel (56%) and molybdenum (17%) alloys are called

View solution

Q. Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)₂. Lead pipes are readily corroded by

View solution

Q. German silver in an alloy of

View solution

Q. A suitable material of construction to use with fuming sulphuric acid is

View solution

Q. Which of the following crystal structures characterises the austenitic stainless steel?

View solution

Q. Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and

View solution

Q. 18/8 steel is a/an __________ stainless steel.

View solution

Q. Cast iron has very high

View solution