clp study Flashcards
what is the most important reason for doing a vehicle inspection?
Safety
What things get checked during a trip?
instruments, air/temp/pressure gauges, ammeter/voltmeter, mirrors, tires, cargo, lights
Name some key steering parts
wheel, tie rod, shaft, gear box, pitman arm, drag link, knuckle, spindle.
cracked or broken spring hangers are a defect of the _______ system?
suspension
what three kinds of emergency equipment MUST you have?
spare fuses, three red reflective triangles, fire extinguisher
what is the minimum tread depth on front tires?
4/32
what is the minimum tread depth on rear tires?
2/32
air pressure should build from 50 to 90 with in how many minutes?
3
what should wheel bearing seals be checked for?
leaks
steering wheel play must not exceed ______ degrees?
10
what two types of tires CANNOT be used in conjunction?
Radial and bias-ply
the trailer brake valve or (Johnson bar) activates the brakes on the trailer and NOT the tractor. True or false?
true. it only applies the service brakes to the trailer gradually
cargo must be inspected within the first 50 miles and every ______miles or ____hrs, whichever comes first.
150 miles, 3hrs
how do you test hydraulic brakes for leaks?
pump brake pedal 3 times
apply pressure and hold for 5 seconds
pedal should not move
you should avoid _______whenever you can.
backing
if you must back what two things can make it as safe as possible?
back to the drivers side, use a helper
how do you start moving when parked on a hill, without moving backward?
partially engage the clutch before taking right foot off brake
what is the most important hand signal you and a helper can agree on?
stop
two special conditions where you should downshift are?
before going down a hill
before entering a curve.
when should you downshift automatic transmissions?
when going down grades
retarders keep you from skidding when the road is slippery. true or false?
false
when should you turn off retarders?
when drive wheels have poor traction.
what are the two ways to know when to shift?
engine speed, road speed
how long do you have to put out warning devices if stopped on a shoulder?
ten minutes.