Rain Protection

Question 1

The 3 types of rain protection?

Answer 1

Wiper system
Liquid Repellent
Air Pressure

Question 2

3 types of Wiper systems?

Answer 2

Electrically
Hydraulically
Pneumatically

Question 3

Should you operate them on a dry windshield?

Answer 3

No it will ruin the windshield

Question 4

This type of wiper system’s switch is located on the pilots overhead panel?

Answer 4

Electrical

Question 5

What do all windshield wiper system consists of?

Answer 5

Control switch
drive motor
flexible drive shaft
resistor
torque converter
wiper assembly

Question 6

How is motor speed controlled for electrical type wiper systems?

Answer 6

Change the voltage applied

Question 7

What happens when you turn the windshield wiper to a selected speed for an electrical system?

Answer 7

Required resistance + voltage is connected to motor circuit

Question 8

How does rotary motion for electrical wipers work?

Answer 8

Transmitted by flexible SHAFT to the CONVERTER

Question 9

How are pneumatic and hydraulic wiper systems similar?

Answer 9

both require PRESSURE supply to an ACTUATOR

Question 10

For Hydraulic and Pneumatic, how is back and forth movement of the piston(PINION GEAR) accomplished?

Answer 10

cause by the CONTROL UNIT, alternately connecting pressure to opposite side of ACTUATOR

Question 11

This type of rain protection causes water to form small globules that can be quickly blown away?

Answer 11

LIQUID REPPELENT

Question 12

What are the safety problems with Liquid repellent?

Answer 12

corrosive
bad for environment
can damage window if left on

Question 13

Factors when youre allowed to apply liquid repellent?

Answer 13

Wet windshield + operating wipers

Question 14

How does the air pressure system work?

Answer 14

Uses turbine engine bleed air thus prevents rain from striking the windshield

Question 15

What happens when the pilot turns on the rain removal system?

Answer 15

bleed air at high temp. and pressure directed through an outlet at base of windshield