Environmental System

Question 1

Which T-6A environmental system is an engine-driven vapor cycle system?

Answer 1

Air conditioning

Question 2

Fresh air is distributed to the main cockpit duct and then output through what?

Answer 2

Footwarmers or defog vents

Question 3

On the ground, the fresh air blower is activated by what?

Answer 3

Weight-on-wheels switch on the landing gear

Question 4

The RAM AIR FLOW swith is overridden and the fresh air valve closed when the aircraft reaches about what altitude MSL?

Answer 4

8000

Question 5

While in flight, cool air from what passes through the heat exchanger, draws heat from the bleed air, and is then exhausted through a vent in the lower right cowling?

Answer 5

Ram air inlet

Question 6

True or false: As the TEMP CONTROL switch is turned toward COLD, the heat exchanger bypass valve opens up and more cool air from the heat exchanger passes into the cockpit

Answer 6

False

Question 7

Which control, when activated, prevents engine compartment fumes from entering the cockpit through the environmental system after and engine shutdown situation?

Answer 7

Firewall shutoff valve

Question 8

Cockpit air temperature is automatically adjusted between what temperatures F with the TEMP CONTROL switch set to AUTO?

Answer 8

60° and 90°

Question 9

True or false: When the DEFOG switch is ON and the Vent Control Lever is set to CANOPY, a higher volume of bleed air in the system causes ambient cockpit air to be drawn into the heating system ejector, mixed with bleed air in the main cockpit duct and flow downstream to the windshield and canopy defog

Answer 9

True

Question 10

Placing the vent lever in what position causes the valve at the front cockpit assembly to direct the warm air into the windshield defog duct?

Answer 10

CANOPY

Question 11

A panel in the ____ side of the fuselage allows access for maintenance personnel to recharge the system refrigerant when necessary

Answer 11

Forward right

Question 12

What will produce airflow at up to 350 cubic feet per minute at the HI setting?

Answer 12

Evaporator blowers

Question 13

Cockpit pressure altitude is maintained by the pressurization control valve at ____ feet until a cockpit differential pressure of 306 +- 0.2 psi is reached at 18,069 feet

Answer 13

8000

Question 14

The safety valve receives a signal from the ΔP regulator if the cockpit differential pressure exceeds what psi?

Answer 14

4.0

Question 15

The anti-G valve on the left side console in each cockpit is opened by what during maneuvers?

Answer 15

Increasing positive G force

Question 16

The T-6A anti-G system helps maintain what during high G maneuvers?

Answer 16

Normal blood circulation

Question 17

What is installed near each regulator which allows the pilot to continue breathing ambient cockpit air if OBOGS should fail?

Answer 17

Anti-suffocation valve

Question 18

Approximately three minutes after OBOGS is activated, what annunciator will light if there is a system failure during the system self test?

Answer 18

OBOGS FAIL

Question 19

Engine bleed air for the cockpit heating system is supplies from what?

Answer 19

Right side engine compressor P3 port

Question 20

The engine-driven air conditioner compressor pumps refrigerant in vapor form to what?

Answer 20

Condenser

Question 21

Cockpit pressure altitude and differential pressure are shown on what gauge on the instrument panel?

Answer 21

AEDD

Question 22

Placing the Defog switch to ON opens the ____ which causes a higher volume of bleed air to pass through the heating system ejector

Answer 22

Defog valve

Question 23

In the cockpit evaporator modules, _____ is drawn through coils which contain liquid refrigerant

Answer 23

Warm cockpit air

Question 24

After takeoff, fresh air is supplied through what?

Answer 24

Ram air inlet on top of the cowling

Question 25

The air conditioning system only operates when the engine is on and functioning with the ____ and ____

Answer 25

Generator on-line, AIR COND or DEFOG switch ON

Question 26

The amber CKPT ALT light will illuminate when cockpit pressure altitude exceeds how many feet?

Answer 26

19,000

Question 27

The ECS has two temperature sensors to alert the pilot of what conditions in the ducting?

Answer 27

Overtemperature