Question

Which of the following statement is correct? *
a) Iron rims are cooled before they are placed on the cart wheels
b) A glass stopper gets tightened on warming the neck of the bottle
c) Telephone wires sag in winter, but become tight in summer
d) A little space is left between two rails on a Railway tracks

Answer 1

Answer:

d

Explanation:

for expansion in summer little space is left in between rails

Answer 2

Answer:

d. A little space is left between two rails on a railways track