Which of the following are capital expenditure and which are revenue expenditure and why are they ?

1. The purchase of machinery for use in the business.
2. Carriage paid to bring the machinery in (i) above to the works.
3. Complete redecoration of the premises at a cost of $1,500.
4. A quarterly account for heating.
5. The purchase of a soft drinks vending machine for the canteen with a stock of soft drinks.
6. Wages paid by a building contractor to his own workmen for the erection of an office inthe builder's stockyard.