ATA70 - Power plant Flashcards
1
Q
119. The thrust limit is computed by : The FMGC according to the AP/FD MODE The FADEC (ECU) according to the THRUST LEVER position The ECU according to the AP/FD MODE The FMGC according to the ECU order
A
The FADEC (ECU) according to the THRUST LEVER position
2
Q
- Which valve ensure an adequate fuel flow :
The HP FUEL SHUT-OFF VALVE
The LP FUEL SHUT-OFF VALVE
The FUEL METERING UNIT
A
The FUEL METERING UNIT
3
Q
- What device provides direct closure of the HP and LP SHUT-OFF VALVES :
The MASTER SWITCH at OFF position
The ECU
HMU
A
The MASTER SWITCH at OFF position
4
Q
- What is the minimum starting oil temperature :
- 40°C
- 10°C
0°C
A
- 40°C
5
Q
- In manual mode, when the THRUST LEVERS are between the CLIMB DETENT and
IDLE :
Each position of the levers correspond to a N1
N1 climb is selected disregarding THRUST LEVER positions
IDLE THRUST is selected
THRUST is locked
A
Each position of the levers correspond to a N1
6
Q
- On the ground the start sequence is automatically aborted :
There is no automatic start sequence
In case of hot start, hung start, stall or no light up
Only in case of no light up
A
In case of hot start, hung start, stall or no light up
7
Q
- Ignition comes on automatically when N2 reaches :
0%
25%
16%
A
16%
8
Q
- What is the EGT limit at TOGA power setting (CFM 56-B4)?
725°C on 1 engine or 715°C on both engines running
855°C during 5 min ( 10 min on 1 engine )
950°C during 5 min ( 10 min on 1 engine )
A
950°C during 5 min ( 10 min on 1 engine )
9
Q
- LVR MCT amber message (in the left part of the FMA) means :
THRUST LEVERS are not in MCT position after engine failure
THRUST LEVERS are not in CLB position after TAKE OFF
A
THRUST LEVERS are not in MCT position after engine failure
10
Q
- What is the maximun starter operating time :
8 min followed by 15 min of no operation
5 min followed by 20 sec of no operation
2 min followed by 20 sec of no operation
A
2 min followed by 20 sec of no operation
11
Q
- The LOW PRESSURE ROTOR (N1) consist of (CFM 56-B4) :
A front FAN - 9 STAGE BOOSTER - 5 STAGE LP TURBINE
A front FAN (1 STAGE) - 4 STAGE LP COMPRESSOR - 4 STAGE LP TURBINE
A
A front FAN (1 STAGE) - 4 STAGE LP COMPRESSOR - 4 STAGE LP TURBINE
12
Q
- How is the oil cooled ?
By the engine FUEL/OIL heat exchanger
By oil recirculation and the FUEL/OIL heat exchanger
By the air/oil heat exchanger only
A
By the engine FUEL/OIL heat exchanger
13
Q
- In AUTOTHRUST MODE the THRUST computed by the FMGC is limited :
By the mode engaged on the FCU
To the value corresponding to the TLA by the FADEC
By the FMGC it self
A
To the value corresponding to the TLA by the FADEC
14
Q
- What is the minimum oil pressure before warning on ENGINE ECAM SD page :
13 PSI
40 PSI
Variable according to oil temperature
A
13 PSI
15
Q
- The FADEC automatically select continuous ignition in the following cases :
Flame out detected
Engine running and ignition delay during start
Both answers are correct
A
Both answers are correct
16
Q
- Is the engine still supplied in case of oil filter clog :
Yes, by using the oil coming from the IDG cooling tank line
Yes, by BY-PASSING the OIL FILTER (BY-PASS VALVE)
No, the engine stops
A
Yes, by BY-PASSING the OIL FILTER (BY-PASS VALVE)
17
Q
135. The max continuous OIL TEMP limit may be exceeded. What is the limit and in which conditions ? 155°C for less than 15 min 140°C without any delay Both answers are correct
A
Both answers are correct
18
Q
- In flight, if the INSTINCTIVE DISCONNECT P/B is pressed for more than 15 sec, the
A/THR including ALPHA FLOOR is definitively lost :
Right
Wrong
A
Right
19
Q
- What is the FADEC ?
An Engine Control Box (ECB)
A THRUST CONTROL ENG UNIT (EIU)
The Full Autority Digital Control and its peripherical sensors and components
A
The Full Autority Digital Control and its peripherical sensors and components
20
Q
- Reduced FLEX TAKE-OFF THRUST is not permitted :
If outside air temp is lower than corrected temp
On contaminated runway or with one (or more) reverser INOP
If outside air temp is higher than TREF (ISA+15°c)
A
On contaminated runway or with one (or more) reverser INOP
21
Q
139. The maximun REVERSE THRUST may be used down to : A/C stop according to EGT LIMIT 70 kts ( IDLE REVERSE down to A/C stop ) 40 kts ( IDLE REVERSE down to A/C stop )
A
70 kts ( IDLE REVERSE down to A/C stop )
22
Q
- EGT indication pulses red on ECAM E/WD when EGT is higher than (CFM 56-B4) :
725°C
855°C
950°C
A
950°C
23
Q
- THRUST REVERSERS are actuated by :
hydraulic actuators : GREEN for ENG 1, YELLOW for ENG 2
hydraulic actuators : BLUE for ENG 1, YELLOW for ENG 2
pneumatic actuators
A
hydraulic actuators : GREEN for ENG 1, YELLOW for ENG 2
24
Q
- In order to select MCT after an engine failure on a FLEX TAKE-OFF :
As the LEVER THROTTLES are in FLEX DETENT : MCT selection is automatic
LEVER THROTTLES may be moved to TOGA or CL detent then back to MCT
position
A
LEVER THROTTLES may be moved to TOGA or CL detent then back to MCT position
25
Q
- During an automatic on ground engine START-UP, the sequence is :
Ignition WHEN N2 > 16%, HP FUEL VALVE opening when N2 > 22% - START
VALVE CLOSURE when N2 > 50%
IGNITION AND HP FUEL VALVE opening when N2 > 22% - START VALVE
CLOSURE when N2 > 50%
IGNITION when N2 > 16%, HP FUEL VALVE opening when N2 > 22% - START
VALVE CLOSURE when setting MODE SEL switch to normal
A
Ignition WHEN N2 > 16%, HP FUEL VALVE opening when N2 > 22% - START
VALVE CLOSURE when N2 > 50%
26
Q
- During an automatic starting sequence :
START VALVE CLOSES at N2 > 43%
START VALVE CLOSES at N2 > 45%
START VALVE CLOSES at N2 > 50%
A
START VALVE CLOSES at N2 > 50%
27
Q
- The FADEC is electrically supplied by (CFM 56-B4) :
Aircraft electrical system only
Batteries if A/C electrical power fails
Self powered above 58% N2
Aircraft system or self powered in case of emergency
A
Self powered above 58% N2
28
Q
- Maximun EGT during engine start is (CFM 56 A1/A3/B4) :
890°C
855°C
725°C
A
725°C
29
Q
- At TOULOUSE (500 ft) : outside air temp is 36°C and you have found a corrected
FLEX TEMP of 33°C. Is it possible to use FLEX THRUST for TAKE-OFF ?
Yes
No
A
No
30
Q
- What is the maximun N1 (CFM 56-B4) :
109%
104%
A
104%
31
Q
- Is the MAX CRUISE N1 displayed on E/WD ?
No
Yes
A
No
32
Q
- At TAKE-OFF, as soon as the power is set (FLEX or TOGA) :
A/THR function is engaged provided FCU A/THR P/B has been pushed
A/THR function is active
A/TRH function is engaged but not active
A
A/TRH function is engaged but not active
33
Q
- LVR ASYM amber message (FMA) means :
One THRUST LEVER is set out of CLB detent (both engines running)
ASYMETRIC POWER is established due to FADEC MALFUNCTION
ASYMETRIC POWER is established due to TLA RESOLVER FAULT
A
One THRUST LEVER is set out of CLB detent (both engines running)
34
Q
- During an automatic START-UP sequence, the PACK VALVE close when :
IGN/START is selected
APU BLEED is selected to “ON” and IGN/START is selected
The MASTER SWITCH is selected “ON” with IGN/START selected
A
IGN/START is selected
35
Q
- REV GREEN appears on the E/WD ECAM when :
The THRUST LEVERS are selected to FULL REVERSE SECTOR
The REVERSE DOORS are fully deployed
The THRUST LEVERS position are in the IDLE REVERSE SECTOR
A
The REVERSE DOORS are fully deployed
36
Q
- Dry cranking may be manually selected by setting :
ENG MODE SELECTOR to crank and MASTER SWITCH to ON
MASTER SWITCH to OFF, ENG MODE SELECTOR to CRANK and MAN START
P/B to ON
MASTER SWITCH to ON, ENG MODE SELECTOR to CRANK and MAN START
P/B to ON
A
MASTER SWITCH to OFF, ENG MODE SELECTOR to CRANK and MAN START P/B to ON
37
Q
- The THRUST REVERSER activation conditions are :
Aircraft on ground and THRUST LEVER between REVERSE IDLE DETENT and
MAX REVERSE
In flight, spoilers armed AND THRUST LEVERS on The REVERSE SECTOR
THRUST LEVERS in full REVERSE SECTOR
A
Aircraft on ground and THRUST LEVER between REVERSE IDLE DETENT and MAX REVERSE
38
Q
- What is the maximum N2 (CFM 56 A1/A3/B4) :
105%
102%
A
105%
39
Q
- Are the engines still supplied in case of FUEL FILTER clog :
Yes by using the fuel coming from the IDG cooling and outer tank line
No
Yes by-passing the FUEL FILTER (BY-PASS VALVE )
A
Yes by-passing the FUEL FILTER (BY-PASS VALVE )
40
Q
- When an engine ANTI-ICE VALVE is open :
The N2 of the associated engines decreases
The N1 limit is automatically reduced and if necessary N1 IDLE is increased for
both engines
There is no change in N1 limit or N2
A
The N1 limit is automatically reduced and if necessary N1 IDLE is increased for both engines
