Q. Which of the following metals is not subjected to electrolytic refinning/purification?

View solution

Q. The most important function of a washer is to provide bearing area and washers are normally specified by their hole diameters. The diameter of washer as compared to the nut is

View solution

Q. The hardenability of steel decreases with

View solution

Q. Pick out the correct statement about the condensation.

View solution

Q. Change in volume of metals from absolute zero temperature to their melting points is

View solution

Q. Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.

View solution

Q. Alloy powder manufactured by the following process have spherical shapes.

View solution

Q. Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

View solution

Q. The product of a commercial direct reduction process is

View solution

Q. In the diving apparatus, helium is used along with oxygen, because it is

View solution

Q. Materials having resistivity ranging from 1 to 100 ohm. cm is termed as

View solution

Q. During sensible cooling of air, its wet bulb temperature

View solution

Q. The underground well of a biogas plant is called the

View solution

Q. Use of water as a manometric liquid suffers from the disadvantage of its

View solution

Q. The following thermocouple may be used for measuring temperature upto 1873°K.

View solution

Q. Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

View solution

Q. Closeness of packing is maximum in case of __________ crystal lattice.

View solution

Q. Tempering of a material does not improve its

View solution

Q. High relative humidity decreases the evaporative process and as the temperature is increased, the relative humidity decreases. The comfort range for human body is the ambient temperature of 22 to 27°C with relative humidity ranging from __________ percent.

View solution

Q. Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used ?

View solution