Avionics exam 2 ACTUAL UPDATED
Exam Questions and CORRECT Answers
What is an ELT - CORRECT ANSWER - Battery powered transmitter that activates in a
crash or is activated manually
What activates an ELT - CORRECT ANSWER - The G-switch or accelerometer
What is the original signal that an ELT transmits on - CORRECT ANSWER - 121.5MHz and
234MHz
What is the current signal that ELTs transmit on - CORRECT ANSWER - 121.5MHz and
406.025MHz
What is the current activation rate of ELTs - CORRECT ANSWER - 81-83%
What information does an ELT send out when activated - CORRECT ANSWER - data
specific to the aircraft and owner, it is monitored worldwide by a satellite system
Who receives the ELT data signals - CORRECT ANSWER - COSPAS-SARSAT satellite
system
Who is COSPAS-SARSAT - CORRECT ANSWER - Search and rescue satellite aided
tracking, they have 12 satellites and have 43 participating countries
What are the 4 components of the ELT system - CORRECT ANSWER - ELT box, battery,
remote switch and indicator, and the antenna
Where is the ELT box typically located - CORRECT ANSWER - Tail section of aircraft
, How does the ELT box connect to the antenna - CORRECT ANSWER - coaxial cable
What information is required for the ELT box to have on the data tag?(6) - CORRECT
ANSWER - Part number, serial number, manufacture date, frequency, 15-digit HEXID, and
battery part number
Is an aircraft airworthy if the battery for the ELT is past the replacement date? - CORRECT
ANSWER - No
What do you have to do every time the battery is changed on an ELT? - CORRECT
ANSWER - Put it in the logbook and mark it clearly on the ELT box
Where are the regulations located for ELTs - CORRECT ANSWER - 14CFR Part 91.207
How long can an aircraft be operated after the ELT has been removed - CORRECT
ANSWER - 90 days
How often should an ELT be inspected - CORRECT ANSWER - 12 months
What must an ELT be tested for every 12 months - CORRECT ANSWER - Proper
installation, battery corrosion, operation of controls and crash sensor, and the presence of a
sufficient signal radiated from its antenna
When must a battery be replaced or recharged - CORRECT ANSWER - When the transmitter
has been in use for more than one cumulative hour, when 50% of their useful life(or for
rechargeable batteries 50% of their useful life of charge) has expired, as established by the
transmitter manufacturer under its approval
How do you test the G witch - CORRECT ANSWER - Remove box from aircraft, handheld
radio tune to 121.5MHz, holding box securely simulate a throw, this should initiate signal
Exam Questions and CORRECT Answers
What is an ELT - CORRECT ANSWER - Battery powered transmitter that activates in a
crash or is activated manually
What activates an ELT - CORRECT ANSWER - The G-switch or accelerometer
What is the original signal that an ELT transmits on - CORRECT ANSWER - 121.5MHz and
234MHz
What is the current signal that ELTs transmit on - CORRECT ANSWER - 121.5MHz and
406.025MHz
What is the current activation rate of ELTs - CORRECT ANSWER - 81-83%
What information does an ELT send out when activated - CORRECT ANSWER - data
specific to the aircraft and owner, it is monitored worldwide by a satellite system
Who receives the ELT data signals - CORRECT ANSWER - COSPAS-SARSAT satellite
system
Who is COSPAS-SARSAT - CORRECT ANSWER - Search and rescue satellite aided
tracking, they have 12 satellites and have 43 participating countries
What are the 4 components of the ELT system - CORRECT ANSWER - ELT box, battery,
remote switch and indicator, and the antenna
Where is the ELT box typically located - CORRECT ANSWER - Tail section of aircraft
, How does the ELT box connect to the antenna - CORRECT ANSWER - coaxial cable
What information is required for the ELT box to have on the data tag?(6) - CORRECT
ANSWER - Part number, serial number, manufacture date, frequency, 15-digit HEXID, and
battery part number
Is an aircraft airworthy if the battery for the ELT is past the replacement date? - CORRECT
ANSWER - No
What do you have to do every time the battery is changed on an ELT? - CORRECT
ANSWER - Put it in the logbook and mark it clearly on the ELT box
Where are the regulations located for ELTs - CORRECT ANSWER - 14CFR Part 91.207
How long can an aircraft be operated after the ELT has been removed - CORRECT
ANSWER - 90 days
How often should an ELT be inspected - CORRECT ANSWER - 12 months
What must an ELT be tested for every 12 months - CORRECT ANSWER - Proper
installation, battery corrosion, operation of controls and crash sensor, and the presence of a
sufficient signal radiated from its antenna
When must a battery be replaced or recharged - CORRECT ANSWER - When the transmitter
has been in use for more than one cumulative hour, when 50% of their useful life(or for
rechargeable batteries 50% of their useful life of charge) has expired, as established by the
transmitter manufacturer under its approval
How do you test the G witch - CORRECT ANSWER - Remove box from aircraft, handheld
radio tune to 121.5MHz, holding box securely simulate a throw, this should initiate signal
