Environmental Systems

Question 1

Where should the air control knobs be postioned prior to starting the heater or blower?

Answer 1

In/Closed

Question 2

What is the time limit for operating the pitot heat while on the ground?

Answer 2

5 minutes

Question 3

When should pitot heat be turned on in flight?

Answer 3

Hover/Landing in water, flights in rain

Question 4

How long should you wait after stopping the heater before you turn the generator(s) off?

Answer 4

2 minutes

Question 5

Will the heater blower continue to run after the heater had stopped?

Answer 5

Yes, until heater combustion chamber temperature is below 49 deg C

Question 6

What should you do with the heater function switch if the HEATER HOT caution light is on?

Answer 6

Wait 2 min for cool down
HTR START Sw- Press
Monitor Heater Hot Caution Light

Question 7

What is the airspeed limit for windshield wiper operation?

Answer 7

130 KCAS

Question 8

What two items is the crewmember required to check during the PITOT Heat check?

Answer 8

Pitot Tubes and Yaw Port

Question 9

Fuel for the heater comes from what fuel tank?

Answer 9

Right Main

Question 10

Windshield anti-ice provides what two features?

Answer 10

Anti-Ice, Anti-Fog

Question 11

The HEATER HOT caution light will stay active until temperature is below ____ and you press what ____?

Answer 11

177 deg C and you press the HTR START switch

Question 12

What is the purpose of the cabin heater thermostat?

Answer 12

Maintain Cabin Temperature

Question 13

At what temperature does the thermal switch that protects the avionics in the heater compartment become active?

Answer 13

29 deg C

Question 14

What component raises fuel pressure for the heater?

Answer 14

Pump in Fuel Control Unit

Question 15

Which fuel pump switches must be on to operate the heater?

Answer 15

Right Main Fuel Pump Switches

Question 16

What does the heating system provide to the operating crew?

Answer 16

Heat and Ventilation

Question 17

Where are the environmental control panels located?

Answer 17

Over Head Switch Panels

Question 18

Where is the heater unit located in the aircraft?

Answer 18

In the Heater Compartment

Question 19

Windshield Anti-Icing is provided to which windshields?

Answer 19

Pilot and Co-Pilot

Question 20

When the PITOT HEAT switch is turned on heat is supplied to what compnenets?

Answer 20

Pitot Tubes and the Yaw and Static Ports

Question 21

Pull out the cockpit air knobs ____ to preclude dirt and debris from being blasted into the air and crew’s eyes.

Answer 21

Slowly

Question 22

How long should the operator wait to attempt a restart of the heater if a HEATER HOT caution is active?

Answer 22

2 minutes

Question 23

If the heater shuts down during icing, do not attempt to restart until?

Answer 23

Ice is removed from the heater intake, heater exhaust, and fuel drain

Question 24

Before starting the heater ventilation system what position should the Pilot and Co-Pilot air control knobs be positioned?

Answer 24

IN and Closed

Question 25

What is the purpose of the cabin thermostat?

Answer 25

Maintain Cabin Temperature

Question 26

Which tank supplies fuel to the Heater Unit?

Answer 26

Right Main

Question 27

During a fire situation and smoke is in the cabin area what position should the heater function switch be placed in, if heater is not being operated?

Answer 27

ON Position

Question 28

What position should the wipers be adjusted to during an instrument approach in the rain?

Answer 28

Fast

Question 29

To prevent windshield damage, do not operate the windshield wipers when windshields are in what condition?

Answer 29

Dry

Question 30

Pitot heat should be used for flights in rain to prevent moisture from accumulating in _____

Answer 30

Pitot Tubes, Yaw Ports, Static Ports, and Tubing

Question 31

When the PITOT HEAT switch is placed to ON, power is applied to the heater elements in?

Answer 31

The Pitot Tubes, Yaw and Static Ports