Explanation:

- The insurance claim received for machinery completely damaged by fire is classified as a capital receipt.

- Capital receipt: These arise from non-operational activities, often involving significant asset transactions or compensations, like insurance claims on long-term assets.

- Revenue receipt: Regular business income from day-to-day operations like sales and services.

- Capital expenditure: Spending on acquiring or improving fixed assets, not gaining compensation.

- Revenue expenditure: Spending for ongoing operational activities.