Aerial chapter 7

Question 1

($$$$$$). The theoretical safety zone that surrounds the center of gravity on an aerial apparatus..

Answer 1

Gravity circle

Question 2

($$$$$$). Setting the stabilizers on one side of an apparatus shorter than the stabilizers on the other side of the apparatus. Usually done when access for full stabilization is restricted.

Answer 2

Short jacking

Question 3

The base of stability is increased when the ($$$$$$) a deployed.

Answer 3

Increases

Question 4

The center of gravity shifts ($$$$$) if the aerial device is extended over front of the apparatus.

Answer 4

Forward

Question 5

If the apparatus is parked ona lateral grade,the center of gravity will be shifted to the ($$$$$$$).

Answer 5

Lower side

Question 6

Excessive loading on the aerial device will result in an ($$$$) of the gravity circle.

Answer 6

Expansion

Question 7

($$$$$$) also called OUTRIGGERS, GROUND JACKS, AND SCREW JACKS are required to prevent the apparatus from tipping as the aerial device is extended away from the center line of the chassis.

Answer 7

Stabilizers

Question 8

($$$$$$$) Two peice aerial apparatus stabilization device consisting of an arm that extends directly out from the vehicle and a lifting jack that that extends from the end of the extension arm to the ground.

Answer 8

Box stabilizer

Question 9

($$$$$) are extended down from the chassis.

Answer 9

Straight jacks

Question 10

($$$$$) scissor or X style stabilizers extend down and away from the chassis at an angle.

Answer 10

A frame

Question 11

($$$$$$) extended straight away from the truck and have jacks that extend straight down to the ground; sometimes referred to as H style stabilizers.

Answer 11

Box stabilizers

Question 12

The engagement switch for the PTO system is usually located on the ($$$$$$$) of the vehicle .

Answer 12

Dashboard

Question 13

Pneumatic systems require anywhere from ($$$) to ($$$) air pressure for the system to be operated.

Answer 13

50 psi

140 psi

Question 14

($$$$$). A rotating shaft that transfers power from the engine to auxiliary equipment.

Answer 14

PTO

Question 15

($$$$$$). Device that mounts on, or within, the engine overhead and is mused to alter a Diesel engines compression in order to slow the vehicle.

Answer 15

Jacobs engine brake

Question 16

Wheel should have chocks placed both in front and behind the tire, on both sides of the apparatus, with approximately an ($$$) of extra space .

Answer 16

Inch

Question 17

($$$$$$) stabilizing device that extends at an angle down and away from the chassis of an aerial fire apparatus. Also known as an A frame stabilizer.

Answer 17

Fulcrum type stabilizer

Question 18

When operating in restricted area, the extension arms should be FULLY extended on the side the the aerial device is going to be ($$$$).

Answer 18

Over.

Question 19

The stabilizer pads are usually provided by the manufacturer of the apparatus and are usually ($$$$) with a built in handle.

Answer 19

24x24 inch

Question 20

($$$$$$). Stabilizers can be deployed only in the FULLY extended position and can not be deployed at all in obstructions are present.

Answer 20

Fulcrum type

Question 21

Correction of LATERAL unevenness can be achieved on grades upto ($$$$) or ($$$$) .

Answer 21

5

6%

Question 22

A 5% grade means that there is a rise in terrain height of 5 feet forever run of ($$$$) of distance.

Answer 22

100 feet

Question 23

STABILIZING UNEVEN TERRAIN

most manufacturers of aerial devices recommend that the stabilizers on the ($$$$) side of the vehicle be lowered first.

Answer 23

Up hill

Question 24

STABILIZING ON UNEVEN TERRAIN

It is preferable that the aerial device be operated over the ($$$$$) side of the apparatus.

Answer 24

Uphill

Question 25

When parked on a LONGITUDINAL GRADE do not extend the aerial device over the ($$$$$) of the apparatus.

Answer 25

Side

Question 26

Maximum stability occurs when the angle of the tractor is ($$$$) from the center line of the trailer, and the aerial ladder is operated toward the out side of the angle.

Answer 26

60 degrees

Question 27

Angles less than ($$$) provide less stability, as do angles increasing from 61 to 90 degrees.

Answer 27

60 degrees

Question 28

The vehicle should never be positioned with the tractor and tiller at an angle greater than ($$$$)

Answer 28

90 degrees