NSS REVIEW | COMPLETE PRACTICE QUESTIONS, ANSWERS & STUDY GUIDE
2026/2027
Man overboard Recovery methods - correct answer ✔✔Small boats
Forecastle Recovery (SAR swimmer)
Helicopters with SAR swimmer
MOB recovery maneuver methods - correct answer ✔✔Anderson Turn (frudder ful to side of
recover, engines ahead full, wind, ship, man... big circle) Quick and simple. must be good
weather
Williamson Turn. - Like an elongated anderson. places ship on reciprocal course. slower and
victim lost from view
Race Track Turn.. two full turns. if our ship has equipment or something
Y-backing. for vessels with limited visibility and low height of eye. like a triangle
Immediate action of MOB - correct answer ✔✔Bridge calls rudder/engine orders
-1mc announcement
-hoist flag oscar
-pulsating red light
-six short blasts
-locate and point to the man overboard
-throw life ring
-throw smoke float at man
-determine type of mob recovery
-locate winds and best course
-notify ships via radio
(ddig = 8 min forr shipboard recovery or 13 for small boat.)
, Fixed lights types - correct answer ✔✔Major vs minor
Major = high-intensity/reliable, from fixed structure or sight
--primary seacost lights - for making landfall from sea and coastwise
--secondary lights -- at harbor entrances
Minor light
-low/moderate intensity light
-in harbors, channels, rivers, isolated locations.
Sector lights - correct answer ✔✔Arcs of colors indicating dangerous waters
Green - best water
White - good water
Red - danger area
Shapes of buoys - correct answer ✔✔fixed aids would be impractical
Can
Cone (nun)
pillar
sphere
Spar
Buoyage systems - correct answer ✔✔IALA = international association of lighthouse authorities
A
B = red right returning
Types of magnetism - correct answer ✔✔Terrestrial (variation) from earth
2026/2027
Man overboard Recovery methods - correct answer ✔✔Small boats
Forecastle Recovery (SAR swimmer)
Helicopters with SAR swimmer
MOB recovery maneuver methods - correct answer ✔✔Anderson Turn (frudder ful to side of
recover, engines ahead full, wind, ship, man... big circle) Quick and simple. must be good
weather
Williamson Turn. - Like an elongated anderson. places ship on reciprocal course. slower and
victim lost from view
Race Track Turn.. two full turns. if our ship has equipment or something
Y-backing. for vessels with limited visibility and low height of eye. like a triangle
Immediate action of MOB - correct answer ✔✔Bridge calls rudder/engine orders
-1mc announcement
-hoist flag oscar
-pulsating red light
-six short blasts
-locate and point to the man overboard
-throw life ring
-throw smoke float at man
-determine type of mob recovery
-locate winds and best course
-notify ships via radio
(ddig = 8 min forr shipboard recovery or 13 for small boat.)
, Fixed lights types - correct answer ✔✔Major vs minor
Major = high-intensity/reliable, from fixed structure or sight
--primary seacost lights - for making landfall from sea and coastwise
--secondary lights -- at harbor entrances
Minor light
-low/moderate intensity light
-in harbors, channels, rivers, isolated locations.
Sector lights - correct answer ✔✔Arcs of colors indicating dangerous waters
Green - best water
White - good water
Red - danger area
Shapes of buoys - correct answer ✔✔fixed aids would be impractical
Can
Cone (nun)
pillar
sphere
Spar
Buoyage systems - correct answer ✔✔IALA = international association of lighthouse authorities
A
B = red right returning
Types of magnetism - correct answer ✔✔Terrestrial (variation) from earth
