Class D Practice Test 5 Flashcards
At vehicle inspection stations, axles are inspected for?
Spacing
What does this orange sign mean?
Road work begins ahead
What is the “cut in” level?
The pressure level that triggers the governor to turn on the air compressor
What don’t a vehicle’s back wheels usually do?
Pivot
How many off-duty hours must a commercial driver have in a day?
10 hours
Spring brakes will begin to apply when the pressure starts to drop below?
413 kPa (60 psi)
What do these signs mean if you see a construction worker holding them up?
Stop or slow down depending on which part of the sign is facing your vehicle
The low air pressure warning device needs to be replaced or adjusted if it does not trigger at a minimum level of?
380 kPa (55 psi)
If the outer layer of an airline is damaged, but the inner layer is ok, what should you do?
Replace the line
The tallest your vehicle can be is?
4.15 m
Which of these vehicles would usually have an air brake system?
A school bus
To measure the time it takes to build up pressure in the air system, the engine should be idling between _______________.
600 to 900 RPM
What colour will the road generally look in the winter time?
Light grey with some white
What is the gross weight of your vehicle?
Weight of the load and the vehicle
What does this warning sign mean?
Hazard close to the edge of the road
