EP3 OPEN BOOK NATOPS EXAM
QUESTIONS AND ANSWERS 100%
PASS
Aircraft AC power is furnished by three engine-driven generators (GENs _____) and
one additional generator driven by the APU. - ✔✔2, 3, and 4
During Preflight, the _____ is responsible for ensuring the HF-1 and HF-2 dog leg
antennas are attached to the aircraft and that the slip mark is properly aligned. -
✔✔NAV/COMM
Which scale charts are required when operating within 30 NM of any land mass? -
✔✔1:500,000 (TPC)
-OR-
1:1,000,000 (ONC)
While in the en route portion of flight, a DR is required _____ . - ✔✔A. For every turn
more than 30 degrees
C. Every 30 minutes
***Both A and C
How many Transformer-Rectifiers (TRs) are onboard the EP-3? - ✔✔5
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 1
, The APX-123 Transponder contains embedded crypto and is considered a CCI -
✔✔True
The Mission Communications RFD defaults to _____ without software loaded (offline
mode of operations - ✔✔LOS
When switching modes on the PRC-149 Survival Radio, the unit defaults to _______. -
✔✔MUTE
Prior to executing a Bailout, before the main cabin door can be opened, verify flight
station overhead smoke door is ______. - ✔✔closed
The HF-1 antenna has an anti-resonant range from approximately _____ . - ✔✔29 to 30
MHz
To reduce the possibility of explosion, ground transmit of operation of the ARC-243 (V)
HF radio, including BIT, is prohibited unless the aircraft is ___ feet or more from
aviation fuel storage areas, aircraft with open fuel lines/systems, and/or refueling of
aircraft(s). - ✔✔200 feet
What is the required warm-up time for the ARC-243 (V) HF radio during normal
weather conditions and cold weather operations respectively? - ✔✔5 & 20 minutes
SELCAL is assigned by BuNo number and can be changed at the EWMC's discretion for
OPSEC. - ✔✔False
The Central Repeater System consists of two ______ - ✔✔Electronic Control Amplifiers
Do not activate the ECA push-to-test switches in flight with the ASW-60 autopilot
engaged. - ✔✔C.In flight with the ASW-60 autopilot engaged.
The "J" in the Navigation J Box stands for - ✔✔Interconnection ??
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
QUESTIONS AND ANSWERS 100%
PASS
Aircraft AC power is furnished by three engine-driven generators (GENs _____) and
one additional generator driven by the APU. - ✔✔2, 3, and 4
During Preflight, the _____ is responsible for ensuring the HF-1 and HF-2 dog leg
antennas are attached to the aircraft and that the slip mark is properly aligned. -
✔✔NAV/COMM
Which scale charts are required when operating within 30 NM of any land mass? -
✔✔1:500,000 (TPC)
-OR-
1:1,000,000 (ONC)
While in the en route portion of flight, a DR is required _____ . - ✔✔A. For every turn
more than 30 degrees
C. Every 30 minutes
***Both A and C
How many Transformer-Rectifiers (TRs) are onboard the EP-3? - ✔✔5
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 1
, The APX-123 Transponder contains embedded crypto and is considered a CCI -
✔✔True
The Mission Communications RFD defaults to _____ without software loaded (offline
mode of operations - ✔✔LOS
When switching modes on the PRC-149 Survival Radio, the unit defaults to _______. -
✔✔MUTE
Prior to executing a Bailout, before the main cabin door can be opened, verify flight
station overhead smoke door is ______. - ✔✔closed
The HF-1 antenna has an anti-resonant range from approximately _____ . - ✔✔29 to 30
MHz
To reduce the possibility of explosion, ground transmit of operation of the ARC-243 (V)
HF radio, including BIT, is prohibited unless the aircraft is ___ feet or more from
aviation fuel storage areas, aircraft with open fuel lines/systems, and/or refueling of
aircraft(s). - ✔✔200 feet
What is the required warm-up time for the ARC-243 (V) HF radio during normal
weather conditions and cold weather operations respectively? - ✔✔5 & 20 minutes
SELCAL is assigned by BuNo number and can be changed at the EWMC's discretion for
OPSEC. - ✔✔False
The Central Repeater System consists of two ______ - ✔✔Electronic Control Amplifiers
Do not activate the ECA push-to-test switches in flight with the ASW-60 autopilot
engaged. - ✔✔C.In flight with the ASW-60 autopilot engaged.
The "J" in the Navigation J Box stands for - ✔✔Interconnection ??
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
