MECHANICAL SYSTEMS QUESTIONS AND ANSWERS 100%
SOLVED CORRECTLY
# Term Definition
1 What is the hierarchy of the battery GEN is the same :p
and generator buses?
2 What are 5 things that the hot battery
Provides continuous power from the primary battery to:
bus power and how is it powered?
Ram air valve Clocks ELT Battery
OBOGS Emergency Flaps FDR Maintenance Chip
detector,
3 What is the purpose of the bus tie
Ties the generator and battery buses together so the
switch?
generator powers both buses and allows isolation of
the battery and generator busses.
4
Where is the avionics master switch Forward right switch panel and powers all avionics
located and what is its purpose? systems except backup VHF control unit and transceiver.
5 Name 4 main components of the
electrical system? (primary, secondary) 28 VDC, 300 amp starter/generator (primary) 24 VDC,
42 amp/h lead acid battery 24 VDC, 5 amp/h auxiliary
battery External power receptacle
6
Accessory compartment on the left hand side in front of
Where is the main battery located?
the firewall.
7 What two circuit breaker panels are
Battery bus on the left hand side. Generator bus on the
there, what are CB's purpose, and what
right hand side CB's protect system by cutting current
do the numbers mean?
Number is max current load the circuit can handle
before popping
8 Starter/generator location?
Back of accessory gearbox on the rear of the engine.
, 9 Purpose of Generator Control Unit
(GCU) and where is it located? Provides voltage regulation Voltage protection from
over/under voltage Generator overload protection
Located under panel in right rear cockpit
10 Forward right switch panel
Where is the generator control switch
located?
# Term Definition
11
Indications that the bus tie switch has
Yellow BUS TIE on CAS. MASTER CAUT Aural tone
failed?
12 Rear left avionics bay
Where is the auxiliary battery located?
13 What are the two purposes of the main
Provides power for engine starts Capable of powering all
battery?
electrical systems in event of generator failure (except
air con.)
14 Battery Generator
Which switches are magnetically
interlocked between the front and
rear cockpit?
15 How is MFD lighting controlled? Rocker switch on top and bottom of each MFD.
16 Purpose of auxiliary battery?
Powers a minimum number of avionics in event of gen
and bat failure.
17 Forward right switch panel
Where is auxiliary battery switch
located?
18 System test panel on left console
Where is aux bat test switch located?
19
WHere is external power receptacle
Bottom of left aft fuselage, beneath left avionics bay.
located?
, 20
Bat bus Bat switch must be on for external power to
What bus distributes external power?
aircraft
21
Automatically disconnects external power if voltage
What is the overvoltage relay definition
exceeds a nominal level.
22 What and where are the cockpit lights
located? Flood lights - Rails above side consoles Utility light - back
right console Kneeboard lights mounted on front of each
forward and aft glareshield
23 Left front switch panel.
Where are the cockpit lights and
instrument light controlled?
# Term Definition
24 On the UFCP
Where is Up Front Control Panel (UFCP)
and HUD lighting controlled?
25
Taxi - inboard of right main landing gear Landing -
Where are the taxi and landing lights
inboard of left main landing gear Provide light for taxi
located and what are their purposes?
and landing.
26 Where are nav and anti collision lights
Nav - leading edge wing tip (red - left, green right)
located and what are their
trailing edge of wing tip (both white) Anti-collision - wing
characteristics?
tip near leading edge and strobe at approx. 30
flashes/min
27 What are the two methods of refuelling
and how do capacities change? Single point pressure refuelling (primary), located fwd of
left wing. Over the wing gravity refuelling (secondary)
Primary = 1100lbs Secondary = 1200lbs
28
Wing tanks = 530lbs Collector tank = 40lbs (primary
What are the capacities of each tank?
refuelling method)
SOLVED CORRECTLY
# Term Definition
1 What is the hierarchy of the battery GEN is the same :p
and generator buses?
2 What are 5 things that the hot battery
Provides continuous power from the primary battery to:
bus power and how is it powered?
Ram air valve Clocks ELT Battery
OBOGS Emergency Flaps FDR Maintenance Chip
detector,
3 What is the purpose of the bus tie
Ties the generator and battery buses together so the
switch?
generator powers both buses and allows isolation of
the battery and generator busses.
4
Where is the avionics master switch Forward right switch panel and powers all avionics
located and what is its purpose? systems except backup VHF control unit and transceiver.
5 Name 4 main components of the
electrical system? (primary, secondary) 28 VDC, 300 amp starter/generator (primary) 24 VDC,
42 amp/h lead acid battery 24 VDC, 5 amp/h auxiliary
battery External power receptacle
6
Accessory compartment on the left hand side in front of
Where is the main battery located?
the firewall.
7 What two circuit breaker panels are
Battery bus on the left hand side. Generator bus on the
there, what are CB's purpose, and what
right hand side CB's protect system by cutting current
do the numbers mean?
Number is max current load the circuit can handle
before popping
8 Starter/generator location?
Back of accessory gearbox on the rear of the engine.
, 9 Purpose of Generator Control Unit
(GCU) and where is it located? Provides voltage regulation Voltage protection from
over/under voltage Generator overload protection
Located under panel in right rear cockpit
10 Forward right switch panel
Where is the generator control switch
located?
# Term Definition
11
Indications that the bus tie switch has
Yellow BUS TIE on CAS. MASTER CAUT Aural tone
failed?
12 Rear left avionics bay
Where is the auxiliary battery located?
13 What are the two purposes of the main
Provides power for engine starts Capable of powering all
battery?
electrical systems in event of generator failure (except
air con.)
14 Battery Generator
Which switches are magnetically
interlocked between the front and
rear cockpit?
15 How is MFD lighting controlled? Rocker switch on top and bottom of each MFD.
16 Purpose of auxiliary battery?
Powers a minimum number of avionics in event of gen
and bat failure.
17 Forward right switch panel
Where is auxiliary battery switch
located?
18 System test panel on left console
Where is aux bat test switch located?
19
WHere is external power receptacle
Bottom of left aft fuselage, beneath left avionics bay.
located?
, 20
Bat bus Bat switch must be on for external power to
What bus distributes external power?
aircraft
21
Automatically disconnects external power if voltage
What is the overvoltage relay definition
exceeds a nominal level.
22 What and where are the cockpit lights
located? Flood lights - Rails above side consoles Utility light - back
right console Kneeboard lights mounted on front of each
forward and aft glareshield
23 Left front switch panel.
Where are the cockpit lights and
instrument light controlled?
# Term Definition
24 On the UFCP
Where is Up Front Control Panel (UFCP)
and HUD lighting controlled?
25
Taxi - inboard of right main landing gear Landing -
Where are the taxi and landing lights
inboard of left main landing gear Provide light for taxi
located and what are their purposes?
and landing.
26 Where are nav and anti collision lights
Nav - leading edge wing tip (red - left, green right)
located and what are their
trailing edge of wing tip (both white) Anti-collision - wing
characteristics?
tip near leading edge and strobe at approx. 30
flashes/min
27 What are the two methods of refuelling
and how do capacities change? Single point pressure refuelling (primary), located fwd of
left wing. Over the wing gravity refuelling (secondary)
Primary = 1100lbs Secondary = 1200lbs
28
Wing tanks = 530lbs Collector tank = 40lbs (primary
What are the capacities of each tank?
refuelling method)
