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Terms in this set (81)
Control handle on the dashboard that may be used to
Modulating valve
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
parked vehicles liquid 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
Safety equipment breakers, three red reflective triangles or three red
burning flares
Proper idle and operating 5-20 psi
Oil pressure Operating 35-75psi
Pump the break pedal three times then apply firm
Testing for hydraulic leaks pressure and hold for 5 seconds the pedal should not
move if it does something is wrong
When should drivers They must inspect the securement of cargo within the
inspect trucks and cargo? first 50 miles of a trip and every 150 miles or three
B hours whichever comes first
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
retarder off? should turn off it in icy snowy or wet conditions.
How far should you look About 12-15 seconds at lower speeds about a block at
ahead higher 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
Signal early signal continuously and make sure you
Turns
turn off your turn signal after the turn