Q. Which of the following is not a ferromagnetic material ?

View solution

Q. Rain drops falling through atmospheric air attain limited terminal velocity, because of

View solution

Q. Pick out the wrong statement.

View solution

Q. Shampoos are commercially not available in the form of

View solution

Q. A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

View solution

Q. Carbon is present in the form of __________ in grey cast iron.

View solution

Q. In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following :

View solution

Q. __________ remains constant during the adiabatic cooling of moist air.

View solution

Q. __________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

View solution

Q. Out of the following, the alloy which has equal percentage of constituents, is

View solution

Q. Steel is welded using the __________ flame.

View solution

Q. Oxide layer formed on the non-ferrous metal surface after its annealing is

View solution

Q. Silicon percentage in silicon steel used for electrical equipments is about

View solution

Q. Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is

View solution

Q. Liquid nitrogen containers can be made from

View solution

Q. Materials having __________ lattice structure are usually the most ductile.

View solution

Q. In cold working of metal as compared to its hot working

View solution

Q. __________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

View solution

Q. Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

View solution

Q. Which of the following is a weak acid ?

View solution