SYS - Environmental 1 Flashcards

1
Q

Which cockpit has the environmental control panel?

A

The front cockpit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What environmental switch is in the rear cockpit too?

A

Evap blower

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which duct provides fresh air?

A

Inlet duct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How is airlfow provided for in flit and on the ground?

A

In flight from ram air and a blower on the ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does the engine bleed air provide for? (5)

A
  • pressurisation
  • heating
  • OBOGS
  • G suit
  • defogging
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Cockpit air conditioning cooling and avionics cooling is provided by the?

A

Engine driven vapour cycle system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Three positions of the bleed air inflow control switch?

A

Hi
Norm
Off

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Three positions of the ram air flow control switch?

A

Hi
Norm
Off

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does the evaporator blower provide?

A

Airflow through respective air conditioning vents

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does the temperature control switch knob operate?

A

Motor driven heat exchanger bypass valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What temp C is cockpit temperature regulated to in AUTO?

A

60-90deg f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Is the temp controller switch spring loaded to manual?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does the AIR COND switch control?

A

The air conditioning compressor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When is the air conditioning compressor automatically on?

A

When the DEFOG switch is on

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When is fresh air ventilation available? (2)

A

On ground and during unpressurised flight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where is the ram air inlet?

A

On top of the cowl

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What activates the blower?

A

Weight on wheels switch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where does the fresh air come from once weight is off the wheels?

A

Through the ram air inlet

19
Q

What happens to the fresh air valve when above 8000ft msl?

A

It closes allowing the pressurisation system to operate

20
Q

What switch manually controls the fresh air valve?

A

The RAM AIR FLOW switch

21
Q

What two areas are controlled with the vent controllers?

A

Canopy defog and foot warmers

22
Q

How is cockpit air heated?

A

Engine bleed air from P3 port

23
Q

What valve does the Bleed Air Inflow switch control?

A

Bi-level flow control and shut off valve

24
Q

Which air is warmed in the heat exchanger?

A

Fresh ram air

25
Q

Where does the hot bleed air vent after it has been through the heat exchanger?

A

Lower potion of the right AFT cowling

26
Q

What does the heat exchanger bypass valve do?

A

Allows for a portion of hot Bleed air to bypass the heat exchanger and mix with downstream air to control the desired temperature.

27
Q

What temp does heat exchanger bypass valve closes and directs all air through the heat exchanger?

A

73.8deg c

28
Q

Why does the firewall shit off valve get closed after an engine shutdown?

A

Prevents fumes entering the cockpit.

29
Q

Where are the two duct temperature sensors?

A

One near the firewall shut off valve

One at the AFT defog control valve

30
Q

When does the DUCT TEMP caution light illuminate?

A

300degf , 148.8degc

31
Q

What is the name of the CB for inflow valves and motors?

A

INFLOW SYS

32
Q

What valve is opened by the defog switch?

A

The bi-level flow control bypass valve

33
Q

How does the cockpit defog venting system draw in cockpit air as well?

A

Am ejector Venturi

34
Q

Other than the defog switch what switch must be positioned to get effective canopy defogging?

A

The vent lever must be in the canopy position

35
Q

Warning - the canopy/windshield defogging system may not clear the windshield during an ___________ encounter.

A

Icing

36
Q

Where can the first signs of icing present itself? (2)

A

Forward canopy bow and at base of windshield

37
Q

What valve does is controlled by the TEMP CONTROL switch when in AUTO?

A

Heat exchanger bypass valve

38
Q

When will Amber duct TEMP caution illuminate? (2)

A
  • above 300deg f at AFT defog control valve with system in defog mode
  • above 300deg f anytime in the environmental system
39
Q

What type of system is the air conditioning system?

A

Vapor cycle system

40
Q

When does air conditioning system only operate? (3)

A
  • engine is running
  • generator on line
  • Air Cond or Defog switch is on
41
Q

The engine driven compressor pumps ________ in _________ form to the ____________ producing a high pressure _______ .

A

Refrigerant
Vapor
Condenser
Liquid

42
Q

Where does the liquid refrigerant go to from the condenser?

A

To the evaporator modules

43
Q

Flow rate of evaporator blowers on hi?

A

350 cubic feet per minute

44
Q

Where does the vaporised refrigerant go to after it has been through the evaporator coil?

A

Back to the engine driven compressor