Question

If a cylinder of diameter 1.0cm at 30°C is to
be slid into a hole of diameter 0.9997 cm in a
steel plate at the same temperature, the
minimum required rise in the temperature of
the plate is: (Coefficient of linear expansion
of steel=12x 10-6/C)
1) 25°C 2) 35°C 3) 45°C 4) 55°C​

Answer 1

Answer:

rise in the temperature is 25 centigrade

Explanation:

dL = L Â (dT)

dL - change in diameter

L - original diameter

 - coeff of linear expansion

dT - change in temperature