Q. The weight of a body at the centre of the earth is

View solution

Q. For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle.

View solution

Q. The single most imortant requirement for a turbine blade material is

View solution

Q. Pick out the correct statement.

View solution

Q. Ageing of steel refers to the

View solution

Q. When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the

View solution

Q. When metals are heated to high temperature, their __________ increases in general.

View solution

Q. A friction lighter is normally used for lighting gas welding torch, because of the reason that

View solution

Q. Semi-conductors normally employ __________ bonding.

View solution

Q. High endurance limit of carburised machine parts is because of the fact that carburisation

View solution

Q. In __________ process, there is an increase in entropy with no degradation of energy.

View solution

Q. Which of the following is categorised as the plastic welding ?

View solution

Q. In spite of large heat transfer co-efficients in boiling liquids, fins are used advantageously, where the entire surface is exposed to __________ boiling.

View solution

Q. Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when

View solution

Q. __________ are normally subjected to sub-zero treatment.

View solution

Q. Induced draft fans provided in large thermal power plant boilers have __________ blades.

View solution

Q. Which of the following has the highest value of refractive index ?

View solution

Q. Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

View solution

Q. In TIG welding, thoriated tungsten electrodes are used, because it

View solution

Q. Vernier calipers can not be used to measure the

View solution