Iowa CDL — General Knowledge Practice Test 2

1.As you pull back into traffic at the end of the stop/start maneuver on the road test, from which direction should you check traffic especially carefully?
From the leftFrom the rightFrom directly behind onlyFrom above, for low wires
2.You're about to start a run on an unfamiliar route. When does the manual say to program the GPS and review the map?
At the first red lightBefore you begin drivingOn a straight, empty stretch of roadOnly if you get lost
3.Why must your vehicle be clear of more than just the rails themselves at a crossing?
Trains hang out past the rails, so they are wider than the trackThe rails carry electric currentCrossing gates swing out over the roadRailroad inspectors need room to walk
4.On the basic control skills test, a part of your vehicle mounted below door-mirror height touches a boundary cone. How is that scored?
Not scored, since it's a unique partAs an encroachmentAs a pull-upAs a look
5.In Step 4 of the seven-step inspection, which lights do you switch on before getting out of the vehicle?
The interior dome lightsOnly the right turn signalThe low-beam headlights and the four-way flashersThe fog lights and high beams
6.A driver earned a school bus (S) endorsement in 2019, let it lapse, and now wants it back. Under the ELDT rules, must the driver take entry-level training for it?
No, an endorsement first issued before February 7, 2022 doesn't require the training even after a lapseYes, any lapsed endorsement requires new trainingYes, but only the classroom portionNo, unless the driver also adds a hazmat endorsement
7.Where does the manual say riders must not leave carry-on baggage on a bus?
Under their own seatIn the overhead rackIn a doorway or the aisleIn the baggage compartment
8.Your truck stalls on the tracks and no train is in sight. What does Iowa's manual say to do?
Keep trying to restart the engineWait in the cab for helpHave everyone leave the vehicle and move well away at once, train or no trainWalk down the tracks to look for a train
9.Why is a clean windshield more important at night than during the day?
Wipers don't work in the darkNight air carries more dustBright lights can turn dirt on the glass into glare that blocks your viewDirty glass reflects heat into the cab
10.Which list correctly shows the minimum disqualifications for a first, second, and third railroad-highway grade crossing violation, with the later ones falling within three years?
30 days, 60 days, 90 days60 days, 120 days, one year90 days, one year, three yearsOne year, three years, lifetime