Utah Air Brakes Test
Hit those brakes right on I-15's steep downhills – we'll show you how.
Select Test Mode
25 questions from the Utah CDL manual. You've got 30 minutes to pass.
Key Topics
- •Brake lag basics
- •Dual air system check
- •Spring brake limits
About the Utah Air Brakes Test
Topics Covered
- ✓Air compressor cut-in and cut-out – critical for Utah's high-altitude passes where air pressure drops faster.
- ✓Brake lag distance – you'll need this on I-15's heavy traffic near Salt Lake.
- ✓Dual air brake systems – Utah requires them on most trucks; know how they split.
- + 3 more topics
📘 Study Tips & State Info
Study the Utah CDL Handbook's air brake section word for word. The test pulls every question from that book. We recommend reading it twice – once for understanding, once for memorizing key numbers like cut-in pressure (100 psi) and cut-out (125 psi).
Utah examiners watch your pre-trip inspection closely. Practice saying each step out loud. They want to see you check the air compressor, check the slack adjusters, and test the low-pressure alarm. Do it slow and deliberate.
You'll take the air brakes written test at any Utah DMV office that offers CDL services. Major locations include Salt Lake City (2100 S), St. George, Ogden, and Provo. You can schedule your appointment online – walk-ins often wait hours. The written test costs $15 for each endorsement. The skills test (if you need the L endorsement) costs $80 and requires a separate appointment.
Bring your current CDL instruction permit, proof of identity, and your payer number. You don't need a vehicle for the written test – just a pencil. Pass the air brakes written test, and you'll get the 'L' endorsement on your permit.
About the Utah Air Brakes Test
Utah's highways test your air brake skills daily. You'll face steep grades on I-80 through Parleys Canyon and long downhills on I-15 near the Point of the Mountain. Our test covers the exact scenarios you'll encounter.
Utah's weather adds another layer. Snow, ice, and heat all affect your braking distance. You need to know how to adjust for mountain passes and desert stretches.
We pulled these questions straight from the Utah CDL Handbook. Study them, and you'll be ready for the DMV written test.
Topics Covered
Study Tips
Study the Utah CDL Handbook's air brake section word for word. The test pulls every question from that book. We recommend reading it twice – once for understanding, once for memorizing key numbers like cut-in pressure (100 psi) and cut-out (125 psi).
Utah examiners watch your pre-trip inspection closely. Practice saying each step out loud. They want to see you check the air compressor, check the slack adjusters, and test the low-pressure alarm. Do it slow and deliberate.
Utah Specific Information
You'll take the air brakes written test at any Utah DMV office that offers CDL services. Major locations include Salt Lake City (2100 S), St. George, Ogden, and Provo. You can schedule your appointment online – walk-ins often wait hours. The written test costs $15 for each endorsement. The skills test (if you need the L endorsement) costs $80 and requires a separate appointment.
Bring your current CDL instruction permit, proof of identity, and your payer number. You don't need a vehicle for the written test – just a pencil. Pass the air brakes written test, and you'll get the 'L' endorsement on your permit.