engineering recuitment BEL Probationary Engineers Mock Test 2025 Engineering Materials Science Structure and Properties of Engineering Materials Classification of Materials
Select the option that is true regarding the following two statements labeled Assertion (A) and Reason (R).
Assertion (A): Platinum and constantan are preferred materials used for fabricating rheostats.
Reason(R): High resistivity, high working temperature, high corrosion resistance.
1
A is false but R is true
2
Both A and R are true and R is the correct explanation of A
3
Both A and R are true, but R is not a correct explanation of A
4
A is true but R is false