ASAl 105l Examl Versionl 1l (NEWl 2025/l
2026l Update)l Questionsl &l Answers|l
Gradel A|l 100%l Correctl (Verifiedl
Solutions)
QUESTION
Atl lessl thanl 11l fathomsl al numberl withl al subscriptl isl usedl forl thisl measurement.
Answer:
Fathomsl plusl feet
QUESTION
Measuredl depthl andl itsl locationl mayl varyl andl mustl bel knowl tol avoidl improperl
readings.
Answer:
Transducer
QUESTION
Thel mostl basicl andl usefull forml ofl navigation.l Ignoresl currentl andl leeway.
Answer:
Deadl Reckoningl (DR)
QUESTION
Twol factorsl consideredl forl deadl reckoning.
,Answer:
Distance,l directionl (magnetic)
QUESTION
Correctl wayl tol labell DRl plotl withl thesel variables:l speedl 5l knots,l distancel 10l nauticall
miles,l degreesl onl magneticl compassl 90.
Answer:
Cl 090l Ml /l S5.0l (D=10)
QUESTION
Distancel formula.
Answer:
Dl =l Sl xl T
QUESTION
Speedl formula.
Answer:
Sl =l Dl /l T
QUESTION
Timel formula.
Answer:
Tl =l Dl /l S
,QUESTION
Degreel rangel thatl thel DRl coursel shouldl bel plottedl upwind/up-currentl ofl thel target.
Answer:
5-10
QUESTION
Traditionall amountl ofl timel betweenl plottingl DRl position.
Answer:
1l Hour
QUESTION
Thel mostl usefull andl accuratel objectsl tol takel bearingsl onl whenl plottingl position.
Answer:
Chartedl landmarks
QUESTION
Numberl ofl feetl thel handl heldl compassl shouldl bel awayl froml thel mountedl compassl
whenl checkingl forl accuracy.
Answer:
6-8
QUESTION
Thel approximatel positionl ofl yourl boatl showl byl thel crossingl ofl twol orl morel bearings.
, Answer:
Fix
QUESTION
Ideallyl thisl manyl bearingsl shouldl bel takenl forl anl accuratel fix.
Answer:
3
QUESTION
Oncel youl havel al positionl fix,l comparel itl tol this.l (Takenl atl thel samel time)
Answer:
DRl position
QUESTION
Thel linel drawnl onl thel chartl afterl al singlel bearingl isl taken.
Answer:
Linel ofl position
QUESTION
Basedl onl singlel bearingl (LOP)l andl DRl positionl atl thel samel time.
Answer:
Estimatedl positionl (EP)
2026l Update)l Questionsl &l Answers|l
Gradel A|l 100%l Correctl (Verifiedl
Solutions)
QUESTION
Atl lessl thanl 11l fathomsl al numberl withl al subscriptl isl usedl forl thisl measurement.
Answer:
Fathomsl plusl feet
QUESTION
Measuredl depthl andl itsl locationl mayl varyl andl mustl bel knowl tol avoidl improperl
readings.
Answer:
Transducer
QUESTION
Thel mostl basicl andl usefull forml ofl navigation.l Ignoresl currentl andl leeway.
Answer:
Deadl Reckoningl (DR)
QUESTION
Twol factorsl consideredl forl deadl reckoning.
,Answer:
Distance,l directionl (magnetic)
QUESTION
Correctl wayl tol labell DRl plotl withl thesel variables:l speedl 5l knots,l distancel 10l nauticall
miles,l degreesl onl magneticl compassl 90.
Answer:
Cl 090l Ml /l S5.0l (D=10)
QUESTION
Distancel formula.
Answer:
Dl =l Sl xl T
QUESTION
Speedl formula.
Answer:
Sl =l Dl /l T
QUESTION
Timel formula.
Answer:
Tl =l Dl /l S
,QUESTION
Degreel rangel thatl thel DRl coursel shouldl bel plottedl upwind/up-currentl ofl thel target.
Answer:
5-10
QUESTION
Traditionall amountl ofl timel betweenl plottingl DRl position.
Answer:
1l Hour
QUESTION
Thel mostl usefull andl accuratel objectsl tol takel bearingsl onl whenl plottingl position.
Answer:
Chartedl landmarks
QUESTION
Numberl ofl feetl thel handl heldl compassl shouldl bel awayl froml thel mountedl compassl
whenl checkingl forl accuracy.
Answer:
6-8
QUESTION
Thel approximatel positionl ofl yourl boatl showl byl thel crossingl ofl twol orl morel bearings.
, Answer:
Fix
QUESTION
Ideallyl thisl manyl bearingsl shouldl bel takenl forl anl accuratel fix.
Answer:
3
QUESTION
Oncel youl havel al positionl fix,l comparel itl tol this.l (Takenl atl thel samel time)
Answer:
DRl position
QUESTION
Thel linel drawnl onl thel chartl afterl al singlel bearingl isl taken.
Answer:
Linel ofl position
QUESTION
Basedl onl singlel bearingl (LOP)l andl DRl positionl atl thel samel time.
Answer:
Estimatedl positionl (EP)
