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

Q. __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

View solution

Q. Heat release during phase change is observed in case of a/an

View solution

Q. __________ is a non volatile film forming constituent of a paint.

View solution

Q. According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

View solution

Q. Transformer cores are normally made from

View solution

Q. __________ test is the appropriate test to determine whether a material is ductile or brittle.

View solution

Q. Main constituent of bone ash is

View solution