The CCO Mobile Crane Operator Practical Examinations are available on three crane types: 1  Lattice Boom Crane (LBC and LBT): includes lattice boom crawler cranes and lattice boom truck cranes. 2  Telescopic Boom CraneâSwing Cab (TLL): cranes having an operator's station that rotates with the crane's upperworks.
If the power is out for less than 2 hours, then the food in your refrigerator and freezer will be safe to consume. While the power is out, keep the refrigerator and freezer doors closed as much as possible to keep food cold for longer. If the power is out for longer than 2 hours, follow the guidelines below: â¢ For the Freezer section: A freezer that is half full will hold food safely for up to 24 hours. A full freezer will hold food safely for 48 hours. Do not open the freezer door if you can avoid it.
To help keep your refrigerator at the ideal temperature for the longest period of time during a power outage, keep the doors closed. If left unopened, the refrigerator can hold its temperature for up to four hours and the freezer for up to 48 hours. Tips. Invest in a refrigerator thermometer to help you monitor temperature during an outage. If youâve lost power for less than four hours and havenât opened the refrigerator doors during that time, your food should be safe to eat if the temperature remained within the recommended range.