Knowledge Test Class A #1
																					
					
				Class A Driving Test | Minnesota 2025 #1 Page 6 of 7
Train for FREE online with our Minnesota class A 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 MN CDL class A permit in 2025, 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 A requirements may vary from state to state.
							
							
																											
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					36 . It is normal for fresh oil to be found on the pavement under a vehicle.
When approaching your vehicle before a trip, you should look underneath it to make sure there are no fresh oil, coolant, grease, or fuel leaks on the ground. Leaks can indicate unsafe defects on a vehicle.
37 . To use the stab braking method, you should:
		  					Apply the emergency brake until the vehicle starts to slow.
					  
		
	The stab braking method for emergency stops involves fully applying the brakes until they lock up. The brakes are then released until the wheels start rolling, and then the process is repeated.
38 . Header boards are used to protect the driver from cargo in the event of a crash.
The function of a front-end header board (also called a "headache rack") is to protect the driver from being injured by moving cargo in the event of a crash or sudden stop.
39 . Friction inside a brake drum is caused when the brake shoes and linings:
		  					Create excess heat.
					  
		
	Friction inside a brake drum is caused when the brake shoes and linings push against the inside of the drum. The friction in the drums will slow and stop the vehicle.
40 . When driving on a long downhill slope, you should brake by:
When approaching a long downgrade, you should shift into a lower gear then use proper braking techniques. Using the brakes alone could cause them to overheat and fail. The braking power of the engine, which is maximized by being in a lower gear, will be the principal way of controlling your speed on a downgrade.
41 . As part of the vehicle inspection test, a CDL applicant may be asked to:
		  					Replace spark plugs.