Crane capacity is typically specified in terms of_______________?
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Answer: C. tonnes
Explanation
Crane capacity is standardly rated and specified in tonnes representing maximum safe working load limits. Manufacturers assign tonnage ratings to ensure overhead cranes operate safely without structural failure risks. Lifting capacity dictates the mechanical design of hoists, cables, and structural bridge girders in cranes. Industrial cranes are engineered to lift heavy materials in factories, shipyards, and construction sites safely. Safe working load limits account for dynamic forces, wind loads, and structural safety margins in tonnes. Crane specifications also include lifting height, span, and operating speeds alongside maximum tonnage capacity.
Facility managers review crane tonnage ratings to ensure equipment can handle heavy manufacturing assembly components. Exceeding specified crane tonnage capacities can cause structural collapse, dropped loads, and severe workplace accidents. Standardized tonnage ratings facilitate clear communication between equipment purchasers and heavy crane manufacturers. Type of drive describes whether the crane uses electric motors or hydraulics, not its lifting capacity rating. Span refers to the physical distance between runway rails rather than the maximum weight the crane can lift. Stating any of the above is incorrect because capacity specifically denotes the safe lifting weight in tonnes.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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