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Commercial Pilot Ground Course > Aircraft Systems Pt. 3 > Flashcards

Aircraft Systems Pt. 3 Flashcards

Oil System up to Cooling System

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1
Q

The oil is located in a sump that is an integral part of the engine

A

Wet-sump system

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2
Q

The oil is contained in a separate tank and circulated through the engine by pumps

A

Dry-sump system

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3
Q

This draws oil from the sump and routes it to the engine

A

Oil pump

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4
Q

State the oil system components

A
  • Oil pump
  • Oil sump
  • Oil Screens and Filters
  • Oil Cooler
  • Oil Pressure and Temperature Gauges
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5
Q

The pump draws oil from the sump and routes it to the engine

A

Wet-sump system oil pump

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6
Q

After oil is routed through the engine, it is pumped from the various locations in the engine back to the oil tank by scavenge pumps

A

Dry-sump system oil pump

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7
Q

This is a metal dish which covers the bottom of the engine block, and holds the engine oil when it is not circulating around the engine. Oil for engine lubrication is supplied from here on the bottom of the engine

A

Oil Sump

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8
Q

They act as guards to catch contaminants in the oil

A

Oil Screens and Filters

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9
Q

The purpose of this is to allow the engine’s cooling system to remove excess heat from the oil

A

Oil Cooler

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10
Q

This provides a direct indication of the oil system operation. It ensures the pressure in pounds per square inch (PSI) of the oil supplied to the engine

A

Oil pressure gauge

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11
Q

This measures the temperature of oil

A

Oil temperature gauge

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12
Q

A green area shows the normal operating range, and the red line indicates the ________________________

A

maximum allowable temperature

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13
Q

This may mean improper oil viscosity during cold weather operations

A

Low oil temperature

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14
Q

This may signal a clogged oil line, a low oil quantity, a blocked oil cooler, or a defective temperature gauge

A

High oil temperature

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15
Q

This provides information about the correct oil type and weight, as well as the minimum and maximum oil quantity

A

POH

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16
Q

Most aircraft are equipped with either a _____________________________ electrical system

A

14 or a 28-volt direct current (DC)

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17
Q

They supply electric current to the electrical system. They also maintain a sufficient electrical charge in the battery

A

Engine-driven alternators

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18
Q

These produce sufficient current to operate the entire electrical system, even at slower engine speeds, by producing alternating current (AC), which is converted to DC.

A

Alternators

19
Q

What does GPU stand for?

A

ground power unit

20
Q

State the eight basic aircraft electrical system components

A
  • Alternator/Generator
  • Battery
  • Master/ Battery Switch
  • Alternator/Generator Switch
  • Bus bar, Fuses, and Circuit Breakers
  • Voltage Regulator
  • Ammeter/Load-meter
  • Associated electrical wiring
21
Q

Turning this to the ON position provides electrical energy to all the electrical equipment circuits except the ignition system

A

Master Switch

22
Q

This generator electric current based on the principle of magnetic induction

A

Alternator

23
Q

Electrical energy stored here provides a source of electrical power for starting the engine and a limited supply of electrical power for use in the event the alternator or generator fails

A

Battery

24
Q

Alternators have an electromagnet called a ________ that spins inside multiple windings of a conductor called a _________.

A

rotor, stator

25
Q

This is used as a terminal in the aircraft electrical system to connect the main electrical system to the equipment using electricity as a source of power

A

Bus Bar

26
Q

This simplifies the wiring system and provides a common point from which voltage can be distributed throughout the system

A

Bus Bar

27
Q

These are used in the electrical system to protect the circuits and equipment from electrical overload

A

Fuses or circuit breakers

28
Q

These have the same function as a fuse but can be manually reset, rather than replaced, if an overload condition occurs in the electrical system

A

Circuit breakers

29
Q

This is used to monitor the performance of the aircraft electrical system. This shows if the alternator/ generator is producing an adequate supply of electrical power

A

Ammeter

30
Q

These are designed with a zero point in the center of the face and a negative or positive indication on either side

A

Ammeters

31
Q

This type of gauge has a scale beginning with zero and shows the load being placed on the alternator/generator.

This reflects the total percentage of the load placed on the generating capacity of the electrical system by the electrical accessories and battery

A

Loadmeter

32
Q

This controls the rate of charge to the battery by stabilizing the generator or alternator electrical output

A

Voltage regulator

33
Q

This controls power to all circuits, except the ignition system, clock, and flight hour recorder (recorded through an oil pressure switch)

A

Master switch

34
Q

This is a rotating airfoil, subject to induced drag, stalls, and other aerodynamic principles that apply to any airfoil. It provides the necessary thrust to pull, or in some cases push, the aircraft through the air

A

Propeller

35
Q

True or False. The highest pitch is at the hub while the smallest pitch is at the tip.

A

True

36
Q

This is a propeller with fixed blade angles and the pitch of this propeller is set by the manufacturer and cannot be changed

A

Fixed-Pitch Propeller

37
Q

State the two types of fixed-pitch propellers

A

Climb and Cruise

38
Q

This has a lower pitch, therefore less drag. Less drag results in higher RPM and more horsepower capability, which increases performance during takeoffs and climbs but decreases performance during cruising flight

A

Climb

39
Q

This has a higher pitch, therefore more drag. More drag results in lower RPM and less horsepower capability, which decreases performance during takeoffs and climbs but increases efficiency during cruising flight

A

Cruise

40
Q

This is the indicator of engine power. This calibrated in hundreds of RPM and gives a direct indication of the engine and propeller RPM.

A

Tachometer

41
Q

This serves to attach the blades to the engine crankshaft

A

Propeller hub

42
Q

This covers and protects the propeller hub, which in turn enhances aircraft appearance. This reduce drag by streamlining airflow which in turn provides improve engine cooling

A

Propeller spinner

43
Q

The two types of cooling

A

Air Cooled and Liquid Cooled

44
Q

What does CHT stand for?

A

Cylinder-head temperature gauge

Commercial Pilot Ground Course (20 decks)

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