Operations of Systems

Question 1

Primary Flight Controls C172S

Answer 1

Conventional airleron, rudder, and elevator control surfaces. Operated through cables and mechanical linkages controlled through control wheel and rudders. POH 7-7

Question 2

Secondary Flight Controls C172S

Answer 2

• Flaps: Single slotted and electrically actuated. Mechanical stops at 10°, 20°, 30°
• Manually operated elevator trim system controlled by a vertically mounted trim control wheel

Question 3

Powerplant C172S

Answer 3

LHAND
Lycoming 180hp 2700RPM 4cylinder
Horizontally Opposed
Air Cooled
Naturally Aspirated (not turbocharged)
Direct Drive (propeller connects directly to the crankshaft)

Question 4

Propeller C172S

Answer 4

Two bladed, fixed pitch, one piece, 76” in diameter, aluminum alloy propeller

Question 5

Landing a Gear C172S

Answer 5

Tricycle gear. Tubular spring steel main landing gear struts for shock absorption, oleo (Air/oil)nose gear strut and shimmy damper with steerable nosewheel that can turn up to 10°, 30° while braking (differential braking).
Main gear wheels equipped with hydraulically actuated disc brakes

Question 6

Fuel System C172S

Answer 6

POH 7-38

• Gravity fed
• 56gal Total
• 53gal Usable

Question 7

Stall Horn C172S

Answer 7

Pneumatic stall warning system. Stall horn located on left wing.

Question 8

Oil C172S

Answer 8

Engine Oil Sump capacity 8 quarts. Minimum oil amount of 5 quarts (6qts ATP policy) for engine use

Question 9

Brake System C172S

Answer 9

Single disc hydraulically-actuated brake on each main landing gear wheel. Each brake is connected to a hydronic line connected to a master cylinder to each of the rudder pedals/toe brakes

Question 10

Electrical System C172S

Answer 10

60 ampere Alternator creates 28 volt system and the Battery holds 24 volts

Question 11

Essential Bus

Answer 11

PACANESE

• PFD
• ADC
• Comm 1
• AHRS
• Nav 1
• Essential Bus Link (Voltage)
• Standby Instrument Lights
• Engine Airframe Unit

Question 12

Electrical Bus 1

Answer 12

• Fuel Pump
• Beacon Lights
• Landing Lights
• Cabin Lights/Power
• Flaps
• Avionics 1

Question 13

Electrical Bus 2

Answer 13

• Pitot Heat
• Nav Lights
• Taxi Lights
• Strone alights
• Panel Lights
• Avionics 2

Question 14

Avionics Bus 1

Answer 14

• PFD, Deckskin, PFD fan
• ADC, AHRS
• Nav 1, Engine Airframe Unit
• Flight Information System
• DME, ADF

Question 15

Avionics Bus 2

Answer 15

• MFD/MFD Fan
• Transponder
• Nav 2, aft Avionics cooling fan
• Comm 2
• Audio Panel
• Autopilot

Question 16

Crossfeed Bus

Answer 16

• Alt Master Switch

- Warning System

Question 17

Garmin G1000 Avionics

Answer 17

• Combines primary flight instruments, communications, airplane system information, and navigational information
• PFD and MFD Displays

Question 18

Vacuum System C172S

Answer 18

-Powers Secondary Attitude Indicator

Question 19

5 functions of Aircraft engine oil

Answer 19

1. Lubricates - engine’s moving parts
2. Cools - engine by reducing friction
3. Removes - heat from cylinders
4. Seal -provides seal from piston from cylinder walls
5. Cleans - by carrying off contaminates