Knowledge Test Class B #1
Class B Driving Test | Alabama 2024 #1 Page 4 of 7
Train for FREE online with our Alabama class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a AL CDL class B permit in 2024, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.
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22 . During a trip, gauges are:
During a trip, you should regularly check the gauge and instrument panels, mirrors, tires, cargo, and lights for signs of trouble.
23 . What should you do if the braking system cannot build up hydraulic pressure?
If your hydraulic braking system will not build up the pressure needed to slow or stop your vehicle, there are a few possible solutions. Try shifting into a lower gear, pumping the brakes, and/or using the emergency brake.
24 . Convex mirrors:
Are illegal to be used in most states.
Many large vehicles have curved, convex mirrors. Convex mirrors allow drivers to see a wider area than flat mirrors. However, they also make objects seem smaller and farther away than they really are.
25 . If the safety relief valve in the air brake system releases air:
An air brake system has a safety relief valve, which releases air from the tanks if the pressure gets too high. If the valve must operate, something in the system is wrong and should be addressed by a mechanic.
26 . When driving through fog, a driver should:
Drive on the shoulder.
If you must drive in fog, you should use your low beam headlights.
27 . During a vehicle inspection, ensure that lug nuts are all of the following, except:
Free of rust.
During a vehicle inspection test, you must ensure that all lug nuts are present, free of cracks and distortions, and showing no signs of looseness, such as rust trails or shiny threads. Verify that all bolt holes are free of cracks and distortions.
28 . How can you avoid becoming drowsy on a trip?
Schedule the trip at night.
