ISRO 2023 Quiz 43 Revision

In the following question, select the odd number pair from the given alternatives.

___________ structure is obtained by austempering process of heat treatment.

For most brittle materials, the ultimate strength in compression is much larger than the ultimate strength in tension. This is mainly due to

Out of the following refrigerant shown below, which of the following has the maximum ozone depletion potential in the stratosphere?

The alloying element mainly used to improve the endurance strength of steel materials is