AVIATION MACHINIST MATE TEST 2 QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
electricity - Answers Physical Phenomena arising from the existence and interaction of the electrical
charge
voltage - Answers the amount of force being applied to a circuit to provide electron flow
Amperage - Answers Quantity of electricity flowing through the circuit
resisitance - Answers the opposition to the flow of electrons offered by a device or material
what are the 2 forms of electricity - Answers Dynamic and Static
what are the 4 methods of producing dynamic electricty - Answers mechanical chemical thermal and
pressure
what are the 2 types of electricity - Answers direct current and alternating current
what is the purpose of the multimeter - Answers Measure voltage, current and resistance.
what must always be don't to guard against the dangers of static electricity during servicing and
maintenance - Answers Ensure all switches are Safe Off or Normal positions
what is purpose of the engine electrical system - Answers To provide electrical power to the engine
performance indicators
what provides a visual cockpit indication of compressor rotor RPM - Answers Tachometer
what us the purpose of the engine temperature indicating system - Answers provides a visual
indication of the engine exhaust gas temperature
what is the purpose of the fuel flow indicating system - Answers indicates the amount of fuel being
consumed by the engine in PPH
what is the purpose of the engine ire detection system - Answers to alert the pilot of a engine bay fire
or overheating
what is the purpose of the ignition system - Answers provides a high energy spark in the engine
ignitor plug and initiates the combustion section
what is the purpose of the transformer exciter - Answers steps up the input voltage to the rated
output voltage
what are the 2 greatest hazards of the ignition system - Answers the electrical out is lethal and the
insulation material maybe radioactive
State the purpose of the apu - Answers supplies bleed air (pneumatic pressure) for main engine
starting which is available at the start bypass valve
give a description of the APU - Answers a small gas turbine engine located within the airframe of the
aircraft
name all four sources of power provided by an APU - Answers Electrical Mechanical Hydraulic and
Pressure
the accessory section of the APU provides mounting pads for which components - Answers Fuel
Pump & Accelerator, Oil Pump Assembly, Hydraulic starter, and speed sensor
How may the APU be started - Answers Starting is accomplished by hydraulically using an aircraft
mounted hydraulic accumulator
the safety control system includes 2 safety features to shut down the APU Automatically what are
they? - Answers Automatically shuts down when oil pressure falls below min Specified limits turbine
exceeds Max RPM or Temp
what maintenance may be preformed on the APU by Organizational Level Maintenance - Answers
Periodic Inspections or Replacement of components complete removal and replacement of the APU
state the purpose of the engine lubrications system - Answers to provide an adequate supply of clean
oil to the bearings and gears at the right temperature
state the two types of lubrication systems - Answers scavenge and pump
what type of lubrication system has an external oil tank - Answers Axial Flow Engines
what is the purpose of the reservoir/ oil tank - Answers stores the engines oil supply
what controls the air pressure in the lubrication system - Answers Vent
what type of valves allow for an alternate path of flow - Answers Bypass Valve
what is the purpose of a pump - Answers creates a flow to volume of fluid
state the purpose of filters - Answers removes contamination from lubrication
what type of filters can be cleaned and reused - Answers screen filter and screen disk filters
what are the two types of heat exchange - Answers air/ oil, fuel/ oil
what sends a signal to an indicator in the cockpit to display oil pressure - Answers oil pressure
transmitter
electricity - Answers Physical Phenomena arising from the existence and interaction of the electrical
charge
voltage - Answers the amount of force being applied to a circuit to provide electron flow
Amperage - Answers Quantity of electricity flowing through the circuit
resisitance - Answers the opposition to the flow of electrons offered by a device or material
what are the 2 forms of electricity - Answers Dynamic and Static
what are the 4 methods of producing dynamic electricty - Answers mechanical chemical thermal and
pressure
what are the 2 types of electricity - Answers direct current and alternating current
what is the purpose of the multimeter - Answers Measure voltage, current and resistance.
what must always be don't to guard against the dangers of static electricity during servicing and
maintenance - Answers Ensure all switches are Safe Off or Normal positions
what is purpose of the engine electrical system - Answers To provide electrical power to the engine
performance indicators
what provides a visual cockpit indication of compressor rotor RPM - Answers Tachometer
what us the purpose of the engine temperature indicating system - Answers provides a visual
indication of the engine exhaust gas temperature
what is the purpose of the fuel flow indicating system - Answers indicates the amount of fuel being
consumed by the engine in PPH
what is the purpose of the engine ire detection system - Answers to alert the pilot of a engine bay fire
or overheating
what is the purpose of the ignition system - Answers provides a high energy spark in the engine
ignitor plug and initiates the combustion section
what is the purpose of the transformer exciter - Answers steps up the input voltage to the rated
output voltage
what are the 2 greatest hazards of the ignition system - Answers the electrical out is lethal and the
insulation material maybe radioactive
State the purpose of the apu - Answers supplies bleed air (pneumatic pressure) for main engine
starting which is available at the start bypass valve
give a description of the APU - Answers a small gas turbine engine located within the airframe of the
aircraft
name all four sources of power provided by an APU - Answers Electrical Mechanical Hydraulic and
Pressure
the accessory section of the APU provides mounting pads for which components - Answers Fuel
Pump & Accelerator, Oil Pump Assembly, Hydraulic starter, and speed sensor
How may the APU be started - Answers Starting is accomplished by hydraulically using an aircraft
mounted hydraulic accumulator
the safety control system includes 2 safety features to shut down the APU Automatically what are
they? - Answers Automatically shuts down when oil pressure falls below min Specified limits turbine
exceeds Max RPM or Temp
what maintenance may be preformed on the APU by Organizational Level Maintenance - Answers
Periodic Inspections or Replacement of components complete removal and replacement of the APU
state the purpose of the engine lubrications system - Answers to provide an adequate supply of clean
oil to the bearings and gears at the right temperature
state the two types of lubrication systems - Answers scavenge and pump
what type of lubrication system has an external oil tank - Answers Axial Flow Engines
what is the purpose of the reservoir/ oil tank - Answers stores the engines oil supply
what controls the air pressure in the lubrication system - Answers Vent
what type of valves allow for an alternate path of flow - Answers Bypass Valve
what is the purpose of a pump - Answers creates a flow to volume of fluid
state the purpose of filters - Answers removes contamination from lubrication
what type of filters can be cleaned and reused - Answers screen filter and screen disk filters
what are the two types of heat exchange - Answers air/ oil, fuel/ oil
what sends a signal to an indicator in the cockpit to display oil pressure - Answers oil pressure
transmitter
