Iowa CDL Permit Test - Tank

A skid caused by over-acceleration can be resolved simply by removing your foot from the accelerator. Skids of this nature happen most frequently on surfaces covered in snow or ice.

All commercial motor vehicles are required to be equipped with the proper emergency equipment. This may include spare electrical fuses; three red reflective triangles, six fuses, or three liquid burning flares; and at least one properly charged and rated fire extinguisher.

After an engine is started, the coolant temperature should rise gradually to a normal operating range.

If you must drive in fog, be sure to slow down. Turn on your flashers and low beam headlights.

To reduce the risk of surge in a liquid tank, you should make sure to brake well in advance of stops. Increase your following distance to reduce the need for sudden stops.

While baffles in a tank inhibit forward and backward surge, they do not prevent side-to-side surge. Surge to the sides can cause rollovers.

A steering wheel should have no more than 10 degrees of play. This is equal to about two inches of movement at the rim of a 20-inch wheel. If there is more play than this, it may be difficult to steer.