Baskets, Aerial Lifts, and Platforms Flashcards
When Checking the tires of a truck, an off-center valve stem in a truck wheel opening is an indicator of a ?
loose wheel
When checking the air brakes on a bucket truck, the acceptable travel for the slack adjusters is less than ?
2.5”
During a pre-trip air brake inspection, it is not a good idea to drain the air tanks because it takes too long for the truck to fill them again
false
On a truck equipped with air brakes, the pressure buildup from zero to between 85 to 100 pounds per square inch must be less than ?
2 minutes
One way to check if a truck is holding the proper air pressure for its air brakes is to turn the engine off, apply the foot brake, and hold for ? . Pressure drop must be less than two pounds per square inch (psi).
1 minute
Do not check for hydraulic fluid when the system is under pressure, because the fluid coming from a pinhole can pierce the skin and cause serious injury.
True
A typical warm-up for a hydraulic system is to set the engine speed at 600 rpm (1,000 rpm for diesel engines), engage the hydraulic pump, and let it run for about ? .
10 minutes
High-pressure hydraulic hoses used for boom tip tools are generally orange in color and must be rated at ? .
10,000 psi
Boom-type equipment is designed to work at a slope of ? or less.
5 degrees
When grounding a bucket truck at a work site, using the down ground on a pole is convenient, and it will carry the available fault current on the circuit.
False
When testing a bare hand bucket against an energized conductor, the leakage current should not exceed one microampere per ? of the phase-to-phase voltage of the circuit.
1,000 V
According to this lesson, there are ? types of aerial lifts in general use in the industry.
5
Insulated aerial devices are manufactured and tested per ANSI standard ? .
A92.2
The gross vehicle weight (GVW) is equal to the truck weight plus digger derrick and body weight plus tools and cargo weight.
True
If parking on a roadway is required, park on the ? side of the road facing in the direction of traffic flow.
Right Hand