Anti-Ice & Rain

Question 1

T/F: The Engine cowl anti-ice valves are located downstream from the engine bleed air valves?

Answer 1

False. Since, they are upstream this allows for engine anti-ice availability regardless of the position of the bleed valves.

Question 2

Engine anti-ice must be on when icing conditions exist or are anticipated, except when _____________?

Answer 2

during climb or cruise flight below -40 SAT

Question 3

Turning the engine anti-ice ON reconfigures which systems?

Answer 3

The EEC’s reset engine idle speed to approach idle, and the stall warning logic adjusts stick shaker and minimum maneuver speed bars on the airspeed indicator

Question 4

What does the green TAI (Thermal Anti-Ice) annunciator on the N1 gauge indicate?

Answer 4

The cowl anti-ice valve is open

Question 5

What does a dim vs. a bright blue COWL VALVE OPEN light indicate?

Answer 5

dim = cowl anti-ice valve is open
bright = the valve is in transit, or cowl anti-ice valve position disagrees with the related switch position.

Question 6

What does an amber COWL ANTI-ICE light indicate ?

Answer 6

An overpressure condition exists in the duct downstream of the engine cowl anti-ice valve.

Question 7

What does the wing anti-ice system heat?

Answer 7

The three inboard leading edge slats of each wing.

Question 8

T/F: The wing anti-ice system provides heat to the leading edge flaps and the outboard leading edge slats

Answer 8

False

Question 9

To protect the leading edge slats from overheating, the wing anti-ice valves will close __________ regardless of switch position.

Answer 9

on the ground (will not occur in flight)

Question 10

Do not operate engine or wing anti-ice on the ground when the OAT is above _______

Answer 10

10 degrees celsius (50 degrees F)

Question 11

T/F: To preserve thrust on both engines the wing anti-ice will automatically shut off during takeoff.

Answer 11

True. (you should ensure the wing anti-ice switch is off prior to takeoff roll)

Question 12

Once the wing anti-ice switch is selected to ON in flight, the stall warning logic remains set for icing conditions ____________ regardless of subsequent WING ANTI-ICE or ENG ANTI-ICE switch position

Answer 12

for the remainder of the flight

Question 13

T/F : The L3 and R3 windows are electrically heated

Answer 13

False - only the L1 & L2 and R1 & R2 are heated

Question 14

T/F: When the OVERHEAT light illuminates power is automatically removed from the respective window(s).

Answer 14

True

Question 15

Besides the windows, what else is electrically heated?

Answer 15

The pitot probes (3), elevator pitot probes (2), alpha vanes (2), and TAT probe are electrically heated.

Question 16

The AUTO position automatically supplies power to both A and B probe heat systems when ___________

Answer 16

either engine is running

Question 17

How are the engine anti-ice valves controlled?

Answer 17

Electrically controlled, pneumatically operated

Question 18

How are the wing anti-ice valves controlled?

Answer 18

Electrically controlled, electrically operated (AC)

Question 19

T/F: While in flight, the wing anti-ice valves will automatically close if an overheat is sensed.

Answer 19

False

Question 20

Placing the Window Heat Test switch to PWR TEST does what?

Answer 20

provides a confidence test (applies power to all windows).

Question 21

T/F: The static ports are heated when the PROBE HEAT switches are selected ON.

Answer 21

False (static ports are not heated)

Question 22

T/F: You can operate the windshield wipers on a wet or dry surface?

Answer 22

False. Do not operate the wipers on a dry windshield (will scratch the surface)

Question 23

How do you reset the system after performing a test of the window overheat system?

Answer 23

The WINDOW HEAT switches must be turned OFF, then back On again

Question 24

The rain removal system consists of what?

Answer 24

1). A permanent rain repellent coating on the windows

2). Windshield wipers

Question 25

What does an amber TAI indication on the upper DU indicate?

Answer 25

The engine anti-ice valve and switch position disagree