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.
1 If you know ahead of time that your power may go out, freeze plastic bags full of water and use them to fill the empty spaces in the freezer. 2  Put the frozen milk toward the center of the freezer instead of against the walls. 3  A full freezer holds its temperature longer than one that is partially empty.