Questions & Answers for Guaranteed Pass |
Newest Update, 2025-2026.
Terms in this set (81)
Modulating valve Control handle on the dashboard that may be used to apply spring
brakes gradually
Some vehicles have a Spring brake
separate air tank that can
be used to release the
You need at least what 4/32inch in front
tread on the front tires 2/32inch in rear
and what thread on the
rear tires
Steering wheel play of 10 degrees or two inches
what degree can make it
hard to steer
If more than one-forth or It will put the vehicle out of service
more leaf springs are leaking
What warning devices for Three reflective warning triangles, or 6 fuses or 3 liquid
parked vehicles burning flares
What should the Pressure Pressure should build from 50psi to 90 psi in 3minutes.
build in three minutes and Governor cut out at 120-140psi
when does the governor
cutout
Spare electrical fuses unless vehicle has circuit breakers, three
Safety equipment
red reflective triangles or three red burning flares
, Proper idle and operating 5-20 psi
Oil pressure Operating 35-75psi
Testing for hydraulic leaks Pump the break pedal three times then apply firm pressure
and hold for 5 seconds the pedal should not move if it does
something is wrong
When should drivers inspect They must inspect the securement of cargo within the first
trucks and cargo? 50 miles of a trip and every 150 miles or three hours
whichever comes first
B
Road speed Mph
Engine speed Rpm
Retarders Help slow a vehicle
Four basic types of Exhaust,engine, hydraulic, and electric
Retarders
When should you turn the When your drive wheels have poor traction you should turn
retarder off? off it in icy snowy or wet conditions.
How far should you look About 12-15 seconds at lower speeds about a block at higher
ahead speeds about a quarter mile
When should mirror Before the start of a trip when the trailers are straight
adjustment take place
What are curved mirrors Fisheye, spot, bugeye
called
Turns Signal early signal continuously and make sure you turn off
your turn signal after the turn
If you stop on any road you Within ten minutes
must put out your warning
devices
Two way street warning 100ft ahead 10ft back 100 ft back
placement
One way stree placement 10, 100, 200 ft back