SYS5 Test Review () Flashcards
For the ACU to function, BLEED AIR switch must be in which position?
NORM
L ENG/R ENG
HIGH
For most training flights, the MODE switch will be in the ____ position
AUTO FLDK
A passenger in the rear of the A/C complains it’s too hot, how can you increase the amount of cool air to the aft cabin?
Press the CABIN OUTLET button
Pressurization is provided by _______
bleed air through the air cycle unit
Cabin pressure is maintained by regulating the amount of _____
air leaving the cabin
The cabin rate-of-climb knob is usually set in which position?
10 o’clock
The CABIN PRESSURE LO annunciator illuminates when the cabin altitude reaches
9,500 ft (+/-500ft)
When operating properly, the outflow valves will keep cabin pressure differential from exceeding ___ psi
9.1
Prolonged operation with the bleed air in EMER can result in __
Melted trim panels in the rear portion of the cabin
The VCCS provides
the primary cooling prior to engine start and the auxiliary cooling in the air
ELECT HEAT 1&2 activates
3 heaters
When does Ground air provide fresh air to the cabin?
on the ground only
What action should the crew take in the event of AV BLO FAIL?
press the AV STBY BLO switch
The T-1A is pressurized by
engine bleed air
The temperature in the cabin during normal inflight operations is controlled by
mixing hot bleed air and cooled bleed air
When planning to cruise at FL330 the cabin controller should be set to ___
34,000 ft
The use of the EMER position on the bleed air knob is
an emergency and should not be prolonged any longer than necessary
The avionics standby blower
provides an additional source of cooling for the avionics rack in the back of the cabin
Which of the following systems is capable of cooling the aircraft cabin prior to engine start?
VCCS
Vapor Cycle Cooling Subsystem
Selection ELEC HEAT 1&2 on the aux control switch
activated 3 heaters
The ice detect probe triggers an annunciator
if it accumulates 0.02 inches of ice
For engine anti-ice, where is the bleed air inlet valve with or without power?
OPEN WITHOUT power
CLOSED WITH power
T/F: While airborne, do not operate engine anti-ice at a static air temp above 10*C
False
The red WING OV HT annunciator illuminates when
any one of the over-temp switches senses a temp in excess of either 212* or 350*F
Wing anti-ice uses a combination of ___ and ____
bleed air and ram air
Max speed for wipers
200 KIAS
Impact of using HIGH windshield heat?
Distorts vision
also causes erratic and unreliable mag compass headings
what do you do if the horizontal stab. anti ice system fails in flight?
use the backup system
When can you use anti/de-ice systems on the ground?
Testing and LDG roll only
The backup de-ice system is operated by placing the switch in the
MANUAL position momentarily
Placing the H STAB ANTI ICE switch in the test position
simulates an overheat condition
The PLT STATIC rocker switch on the overhead panel controls power to which heating elements?
one static port on each side of the A/C
The PITOT HT OFF annunciator will illuminate when
- either heater fails
- either is turned off
The wing anti-ice system contains
piccolo tubes and an ejector
Fresh ambient air is introduced into the wing leading edge by
ram air scoops located at the root of each wing and near the wing tip
the horizontal stabilizer heating mats maintain temp of ____ when using the anti-ice system
between 260* and 280*F
For horizontal stab, is the de-ice or the anti-ice primary? secondary?
neither is primary, both must be on
horizontal stab backup deice used when
either of the horizontal stab systems fails
the HIGH setting on the windshield heat causes heating where?
lower section of the windshield
T-1 defog systems routes air where
windshield and/or floor
oxygen is not available to anyone unless which knob is pulled?
SYS READY
Passenger oxygen sys is charged when
SYS READY and PASS OXYGEN knobs are pulled
The green overboard discharge indicator will be missing
if the pressure has exceeded 2700 psi
The flow of oxygen to passenger masks is activated how?
Must pull down on the mask/lanyard
Redline pressure on oxygen gauge?
2000 psi
