Q. Which of the following is a permanent fastening?

View solution

Q. Hot & cold working of material causes its __________ deformation.

View solution

Q. The ratio of thermal & electrical conductivity is same for all the metals at the same temperature ; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K)

View solution

Q. In a fuel cell, chemical energy is converted into

View solution

Q. Shock resisting steels should possess high

View solution

Q. Fatigue life is expected to increase by

View solution

Q. Specific __________ is a dimensionless quantity.

View solution

Q. __________ is not used as the control rod material in a nuclear reactor.

View solution

Q. Superheated vapour behaves like

View solution

Q. Which of the following is not an ore of iron ?

View solution

Q. Which is the most lethal weapon ?

View solution

Q. Reynolds number of a fluid flowing in a circular pipe is 10000. What will be the Reynolds number when the fluid velocity is decreased by 30% & the pipe diameter is increased by 30% ?

View solution

Q. An example of unsteady non uniform flow is the flow of liquid under pressure through a

View solution

Q. Which of the following contributes maximum as main source of sulphur in the blast furnace charge ?

View solution

Q. Holes for rivetting purposes should be preferably made by

View solution

Q. One of the methods of purification of leach liquor is ion exchange, which involves

View solution

Q. A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities.
For minimum heat transfer to take place

View solution

Q. Large diameter shafts are manufactured by

View solution

Q. Common salt is produced from sea water in India generally by the __________ method.

View solution

Q. Killed steels

View solution