North Carolina CDL — General Knowledge Practice Test 3

1.In heavy traffic, what is generally the safest speed to travel?
As fast as legally allowedWell below all other trafficWhatever speed lets you pass the most vehiclesThe same speed as the surrounding traffic
2.Which of the following is one of the four causes of skids listed in the manual?
A clean windshieldUsing low beamsOver-accelerationUnder-inflated spare tire
3.About how far ahead can you see using your low-beam headlights at night?
About 250 feetAbout 500 feetAbout 100 feetAbout 1,000 feet
4.When you self-certify and operate in both interstate and intrastate commerce, which must you choose?
Intrastate commerceWhichever has fewer rulesNeither is requiredInterstate commerce
5.Signs identify certain public crossings where approaching trains do not sound a horn. What does that tell you?
The rails at that spot are out of serviceYou may roll across without slowingYou cannot count on hearing a train, so look carefully for one
6.Under what conditions should you turn a speed retarder off?
In heavy stop-and-go trafficWhen the pavement is wet, icy, or snowyOn steep downgradesWhen the load is heavy
7.Which activity is considered a distraction that takes your attention away from driving?
Scanning your mirrorsReading a text messageWatching traffic aheadChecking your gauges
8.Within how many feet of an oncoming vehicle should you dim your high beams to low beams?
250 feet1,000 feet100 feet500 feet
9.How does alcohol affect a driver's abilities?
It has no effect below .08It impairs coordination, reaction time, and judgmentIt improves reaction timeIt only affects vision
10.As you approach an intersection during the road test, what should you do?
Check traffic in all directions and be ready to stopChange lanes in the intersectionSpeed through to clear it quicklyCoast through in neutral