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

Q. Which of the following is not the commercial name of polymethyl-methacrylate (PMMA) ?

View solution

Q. On being hit with a hammer, __________ will readily fracture.

View solution

Q. Which of the following does not discharge the dust collected as a dry solid ?

View solution

Q. Milk is fat dispersed in water. It is an example of

View solution