Chapter 4 Flashcards Preview

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Flashcards in Chapter 4 Deck (26)
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0
Q

How is walk around inspection conducted?

A

start at driver door, inspecting components clockwise rotation

1
Q

When using a garden hose, what is desired distance from end of hose to apparatus?

A

1 foot

2
Q

Nitrogen is a useful agent because?

A

Holds less moisture
Diss apostates heat much faster
Better fuel mileage

3
Q

Curb weight?

A

Weight if an empty apparatus with no equipment, water, passengers or tools

4
Q

GVWR

A

Maximum weight a vehicle can be safely operated

5
Q

What is rapping?

A

Hit tires with a mallet

6
Q

Maximum steering wheel free play?

A

10 degrees

7
Q

Hearing protection should be used above ____ decibels?

A

90

8
Q

Load sequencer?

A

Turns various lights on at specified intervals

9
Q

Load monitor

A

Watches electrical system for added electrical loads

10
Q

Load shedding?

A

Load monitor will shut down less important electrical equipment when overloading occurs.

11
Q

Parking brake should hold an apparatus in place on what percent grade?

A

20% grade

12
Q

Testing air brake leakage rate, air pressures should not loose more than ____% per min

A

2

13
Q

How fast should pressure build up in a duel air system?

A

45 seconds

14
Q

What do you fill battery’s with if water level is low?

A

Distilled water

15
Q

What is order to connect battery charger to battery?

A

Red positive then black negative then plug in charger

16
Q

Apparatus tests can be grouped I to two categories?

A

Preservice tests and service tests

17
Q

Nondestructive testing is? Performed how often?

A

Test method that does not alter or damage materials.

Every 5 years

18
Q

Any person who is actually performing nondestructive testing must be certified as?

A

American Society for nondestructive testing level II NDT in the test method being performed

ASNT

19
Q

How to test for welds and cracks?

A

Magnetic particle Inspection

20
Q

How does conductivity readings work?

A

Aluminum ladders by registering the hardness, taking conductivity readings throughout length of ladder.

21
Q

Material is saturated with a dye or fluorescent penetrant, and a developer is applied.

A

Liquid penetrant testing

22
Q

How is ultrasonic testing done?

A

Sonic the hedge hog..wait wrong

Introductions of high frequency vibrations. Used on bolts, pins, extension cylinder mounting pins

23
Q

How does radiographic testing work and on what?

A

Uses xray

On welds in aerial

24
Q

Acoustic emission testing

A

Emitting sound waves into device and reading then at distant point.

25
Q

What is acceptance testing?

A

Conducted to assure purchaser that apparatus meets original bid