The capacity of the smallest pressed steel tank is A. 1000 litre B. 1650 litre C. 1950 litre D. 2450 litre

The correct answer is A. 1000 litre.

The capacity of a tank is the amount of liquid it can hold. The capacity of a pressed steel tank is determined by its size and shape. The smallest pressed steel tank has a capacity of 1000 litres. This means that it can hold up to 1000 litres of liquid.

Option B is incorrect because the capacity of the smallest pressed steel tank is not 1650 litres.

Option C is incorrect because the capacity of the smallest pressed steel tank is not 1950 litres.

Option D is incorrect because the capacity of the smallest pressed steel tank is not 2450 litres.