Alberta Air Brake (Q) Knowledge Test case studies
Alberta Air Brake (Q) Knowledge Test · Put your knowledge to work in context.
The Air Brake (Q) endorsement is an add-on to an Alberta driver's licence that lets you legally operate a vehicle equipped with an air brake system - the standard braking setup on heavy trucks, tractor-trailers, buses and many commercial vehicles. Without the Q on your licence you cannot drive these vehicles on Alberta roads, even if you hold a Class 1, 2 or 3. The Alberta Air Brake (Q) Knowledge Test case studies are 5 cases and about 4,062 words.
1Dump Truck That Builds Air Too Slowly and Cycles Too Often
A 2017 tandem-axle dump truck arrives at the yard at 06:30 with a full 16-tonne load already on the box. The driver reports the low-pressure buzzer 'chirping' on the highway.
794 words, about 4 min2Leakage Test Where Only the Applied Side Fails
A 2020 tractor pulling a loaded 53-foot van. Governor cut-out is 122 psi.
791 words, about 4 min3Pushrod Stroke, Automatic Slack Adjusters and a 10-Application Retest
A 2015 tri-axle tractor with type 30 clamp-type rear brake chambers and automatic slack adjusters comes through a roadside inspection. With the system at 100 psi and the brakes held fully applied, you measure pushrod stroke: left drive axle forward chamber 2 3/8 in, right drive axle forward chamber 1 7/8 in, both tag axle chambers 2 1/16 in.
787 words, about 4 min4Seven Percent Grade, Hot Linings and a Falling Gauge
You are driving a 2016 tractor pulling a loaded 53-foot van, grossing about 36,000 kg. Westbound on a two-lane mountain highway, the sign at the summit reads '7% grade, 9 km, winding.' You crest the top at 90 km/h in 10th gear, high range, engine brake on high.
831 words, about 4 min5Minus 31, Frozen Trailer Brakes and a Caging Bolt
It is minus 31 degrees Celsius in Grande Prairie. A 2018 tractor and loaded van have been parked outside since yesterday afternoon.
859 words, about 4 min