Which sign helps you recognize a railroad crossing ahead?
Right! Yellow circular advance warning signs, pavement markings and crossbucks help you recognize a crossing. 📖 p. 10-7
From Section 10 of the Iowa Commercial Driver's License Manual
Iowa CDL School Bus Practice Test
Who takes it: Class B and C, for the S endorsement.
Driving a school bus. 20 questions, 16 right to pass (80%).
Practice School Bus
- 10questions a round
- 1manual section
Take the School Bus test
- 20questions
- 16correct to pass
- –no test taken yet
A School Bus question to try
Tap an answer to see if you’re right, and the page
Where it is in the Iowa Commercial Driver's License Manual
Your score on each part fills in as you study.
- Manual section 10
- School busNot practiced yetp. 10-1 to 10-12
Iowa answers about this test
Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DOT
All Iowa CDL tests
- General Knowledge
- Combination Vehicles
- Air Brakes
- Doubles and Triples
- Passenger
- School BusYou're here
- Tank Vehicles
- Hazardous Materials
- Which tests do you need?Pick what you'll drive and get your Iowa CDL plan, in order.