Enter the phone number your instructor registered to begin. You may take this fill-in as many times as you like.
Type a word from the list into each blank. Correct answers turn green right away. Some words in the list are extras meant to trick you.
Enter your name to begin answering.
⚠ Enter your name.
If you enter 3 wrong answers, the entire test will reset to blank and you will have to start all over. Please study your textbook before taking the test. This is a closed-book test.
You cannot steer or brake a vehicle unless you have . is friction between the tires and the road. There are some road conditions that reduce and call for lower speeds.
Slippery Surfaces. It will take to stop and be harder to without skidding when the road is slippery. Wet roads can stopping distance. You must drive slower to be able to stop in the same distance as on a dry road. Reduce speed by about (e.g., slow from to about mph) on a wet road. On packed snow, reduce speed by or more. If the surface is icy, reduce speed to a and driving as soon as you can safely do so.
Identifying Slippery Surfaces. Sometimes, it is hard to know if the road is slippery. Following are signs of slippery roads:
Shaded Areas. Shady parts of the road will remain and long after open areas have melted.
Bridges. When the temperature drops, bridges will before the roads will. Be especially careful when the temperature is close to F.
Melting Ice. Slight melting will make ice wet. Wet ice is much more than ice that is not wet.
Black Ice. Black ice is a thin layer that is clear enough that you can see the road underneath it. It makes the road look . Any time the temperature is below freezing, and the road looks , watch out for black ice.
Vehicle Icing. An easy way to check for ice is to open the and feel the front of the , mirror support or antenna. If there is on these, the road surface is probably starting to ice up.
Just After Rain Begins. Right after it starts to rain, the water mixes with left on the road by vehicles. This makes the road very slippery. If the rain continues, it will wash the oil away.
Hydroplaning. In some weather, water or slush collects on the road. When this happens, your vehicle can hydroplane. It is like water skiing, the tires lose with the road and have little or no traction. You may not be able to or . You can regain control by releasing the and pushing in the . This will slow your vehicle and let the wheels turn freely. If the vehicle is hydroplaning, do not use the to slow down. If the drive wheels start to skid, in the clutch to let them turn freely.
It does not take a lot of water to cause hydroplaning. Hydroplaning can occur at speeds as low as mph if there is a lot of water. Hydroplaning is more likely if pressure is low or the is worn. (The grooves in a tire carry away the water; if they are not deep, they do not work well.)
Drivers must adjust their for curves in the road. If you take a curve too fast, two things can happen. The can lose traction and continue straight ahead, so you skid off the road. Or, the tires may keep their traction and the vehicle over. Tests have shown that trucks with a high center of can roll over at the posted speed limit for a curve.
Slow to a safe speed before you enter a curve. in a curve is dangerous because it is easier to the wheels and cause a skid. Slow down as needed. Do not ever exceed the posted speed limit for the curve. Be in a that will let you accelerate slightly in the curve. This will help you keep control.
You should always be able to stop within the distance you can see ahead. Fog, rain or other conditions may require that you slow down to be able to stop in the distance you can see. At night, you cannot see as far with beams as you can with beams. When you must use low beams, .
Your score is sent to your instructor. Tip: both forms of a fraction are accepted (for example, “1/4” or “one-quarter”).