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Why are A/C units rated in tons?
#11
Are those units three phase, 480v?
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#12
CALVIN: How do they know the load limit on bridges, Dad?

DAD: They drive bigger and bigger trucks over the bridge until it breaks. Then they weigh the last truck and rebuild the bridge.
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#13
[quote Zoidberg]CALVIN: How do they know the load limit on bridges, Dad?

DAD: They drive bigger and bigger trucks over the bridge until it breaks. Then they weigh the last truck and rebuild the bridge.
It's funny 'cause it's true.
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