Question

As per Indian Standard (IS: 4987 - 1968 Code) the number of rain gauges to be provided for 1000 km${}^2$ hilly area with heavy rainfall are ________

• A. 8

Answer 1

The correct option is A 8
As per IS: 4987-1968 Code in hilly area 1 station should be provided for 130km${}^2$
$\therefore Numberofstationsrequired=\frac{1000}{130}=7.69\simeq 8$
$\therefore$ 8 rain gauge station should be provided.