Ship Handling Facts "ROT"

Question 1

SWE STANDS FOR ___________

Answer 1

SHALLOW WATER EFFECT

Question 2

SWE FULL EFFECT AT _____ x draft

1.2
1.5
2
2.5

Answer 2

1.2 X DRAFT

Question 3

SWE FELT AT LESS THAN _____ x draft

1.2
1.5
2
2.5

Answer 3

2 X DRAFT

Question 4

SWE SIGNIFICANT EFFECT AT ____ x draft

1.2
1.5
2
2.5

Answer 4

1.5 X DRAFT

Question 5

SWE TURNING CIRCLE UP TO ____ IN DEEP WATER

Answer 5

2 times greater than

Question 6

SWE - RATE OF TURN IS ____ AS FOR DEEP WATER TURN

Answer 6

THE SAME

Question 7

SWE - PRODUCES ____ STEERING CHARACTERISTICS

Answer 7

IMPROVED (PROVIDED NOT TRIMMED BY THE HEAD)

Question 8

SWE - SHIP TWISTS MORE WHEN ____

Backed or ahead?

Answer 8

BACKED (MAY BECOME UNRELIABLE: ROWE pg. 26)

Question 9

IN SWE SHIP CARRIES HER WAY ____ WITH ENGINE STOPPED

Longer or shorter?

Answer 9

LONGER

Question 10

IN SWE THERE IS _____ WAVE MAKING

Increased or decreased?

Answer 10

INCREASED

Question 11

IN SWE ____ SPEED FOR GIVEN RPM

Reduced or increased?

Answer 11

REDUCED

Question 12

SWE ____ THE TRIM

Answer 12

CHANGES (BOW OR STERN DEPENDING ON SHIP AND INITIAL TRIM)

Question 13

SWE- CHANGE OF OVERALL ____

Answer 13

DRAFT (SINKAGE)

Question 14

SWE- CHANGE OF TRIM AND DRAFT (SINKAGE) = _____

Answer 14

SQUAT

Question 15

SWE- ____ SHIP TO SHIP AND SHIP TO BANK EFFECTS

Answer 15

INCREASES

Question 16

SWE- OPEN WATER SQUAT (FT) = _____

Answer 16

Cb X V²/30

Question 17

SWE- SHALLOW WATER SQUAT (FT) = ____

Answer 17

2 X (Cb X V²/30)

Question 18

SWE- CB 0.75+ TEND TO ____ BY THE HEAD

Answer 18

SQUAT

Question 19

Cb = ____

Answer 19

BLOCK COEFFICIENT

Question 20

V =

Answer 20

SPEED

Question 21

SWE- SQUAT GENERALLY INCREASES ____ AS TWO SHIPS PASS IN A CHANNEL

Answer 21

50%

Question 22

SWE- KEEP SPEEDS TO A MAX OF ____ WITH ____ UKC

Answer 22

6 KNOTS, 5 FEET

Question 23

SWE- LIST CAUSED BY TURN AND SQUAT UNDER HULL AT THE OUTSIDE OF THE TURN IS A ____ FACTOR THAT ____ UKC

Answer 23

SIGNIFICANT, REDUCES

Question 24

SWE-DOES ACCELERATION INCREASE OR DECREASE SQUAT?

Answer 24

INCREASES

Question 25

PP IS LOCATED _______ FOR ACCELERATED TURN AHEAD FROM STOPPED.

Answer 25

1/8L FROM BOW

Question 26

PP =

Answer 26

PIVOT POINT

Question 27

PP IS LOCATED ____ FOR INITIAL STAGE OF TURN WITH HEADWAY

Answer 27

1/4L FROM BOW

Question 28

PP IS LOCATED ____ FOR STEADY TURN

Answer 28

1/3L FROM BOW

Question 29

PP MOVES ____ DURING ACCELERATED TURN

Answer 29

FORWARD

Question 30

PP- MOVES ____ FOR GOING ASTERN

Answer 30

FORWARD

Question 31

PP- MOVES ____ OR ____ FROM THE STERN WHEN STOPPED AND USING BOW THRUSTER

Answer 31

1/8L, BEAM WIDTH

Question 32

PP- ____ HAS A VERY STRONG EFFECT ON THE PP LOCATION

Answer 32

TRIM (HOOYER pg. 23)

Question 33

PP- TRIMMED BY THE HEAD = ____

Answer 33

PIVOT POINT MOVES AFT (HOOYER)

Question 34

PP- TRIMMED BY THE STERN = ____

Answer 34

PIVOT POINT MOVES FORWARD (HOOYER)

Question 35

PP = ____ FROM BOW WHEN TURNING HARD FROM DIW

Answer 35

1/L-B RATIO

Question 36

PP- TRUE OR FALSE: NEWLY INTRODUCED FORCES DO NOT HAVE IMMEDIATE EFFECT ON PP UNTIL MOMENTUM SUBSIDES

Answer 36

TRUE: PP GRADUALLY MOVES (HOOYER pg. 23-24)

Question 37

PP- SHIP WITH HEADWAY-TUG PUSHING AT SHOULDER = ____

Answer 37

PIVOT POINT MOVES AFT (HENSON pg..43)

Question 38

PP- SHIP WITH HEADWAY-TUG PUSHING AT QUARTER =____

Answer 38

PIVOT POINT MOVES FORWARD (HENSON pg. 43)

Question 39

PP- WHAT EFFECT DOES SHALLOW WATER HAVE ON PIVOT POINT?

Answer 39

ROWE SAYS IT MOVES AFT. WE THINK IT STAYS IN POSITION OR MOVES FORWARD A LITTLE

Question 40

CONSTANT RPM TURNING CIRCLES ARE ____ AS AT SLOW AND FULL AHEAD

Answer 40

VIRTUALLY IDENTICAL

Question 41

RATE OF TURN ____ AT HIGHER SPEED

Answer 41

HIGHER

Question 42

____ TURN CAN REDUCE TURNING CIRCLE DIAMETER BY HALF

Answer 42

ACCELERATED

Question 43

VLCC LOSES ____ OF HERE HEADWAY FOR EVERY ____ CHANGE IN HEADING

Answer 43

25-30 PERCENT, 90 DEGREES

Question 44

SPEED DECREASES FROM 12 KNOTS TO ____ AFTER COMPLETING A ROUND TURN

Answer 44

2-3 KNOTS

Question 45

SHIPS DO RESPOND TO RUDDER AT VERY SLOW SPEED IF ____

Answer 45

GIVEN THE CHANCE

Question 46

DIRECTIONALLY UNSTABLE SHIPS NEED ____ RUDDER TO START A TURN AND ____ RUDDER TO STOP A TURN

Answer 46

MORE, MORE

Question 47

DIRECTIONALLY UNSTABLE SHIPS HAVE A ____ TURNING CIRCLE

Answer 47

SMALLER

Question 48

TURNING MOMENT = ____ MOMENT + MOMENT OF ____ RESISTANCE (FORWARD)

Answer 48

STEERING, LATERAL (HOOYER pg. 28)

Question 49

SHIP DOWN BY HEAD = ____ TO STEER, ____ TO START SWING, ____ TO STOP SWING, ____ TURNING CIRCLE

Answer 49

DIFFICULT, SLOW, HARD, SMALLER (HOOYER pg. 31)

Question 50

SHIP DOWN BY STERN = LARGER TURNING CIRCLE DUE TO ____ AND ____ WHICH RESTRICTS DRIFT ANGLE

Answer 50

WEAK FR AT BOW, STRONG LATERAL RESISTANCE ABAFT PP (HOOYER pg. 31)

Question 51

DRIFT ANGLE ____ UNTIL AR AND TRANSVERSE RUDDER FORCE REACH A BALANCE

Answer 51

INCREASES (HOOYER pg. 121)

Question 52

STEERING LEVER = DISTANCE FROM ____ TO ____

Answer 52

RUDDER, PP (FIRST CLASS LEVER) (HOOYER pg. 123)

Question 53

LATERAL RESISTANCE LEVER = DISTANCE FROM ____ TO THE ____

Answer 53

PP, r'(POINT OF FR) (HOOYER pg. 123)

Question 54

DIAMETER OF TURNING CIRCLE- DIRECTLY PROPORTIONAL TO ____ INVERSELY PROPORTIONAL TO THE ____

Answer 54

STERRING LEVER, LATERAL RESISTANCE LEVER (HOOYER pg. 123)

Question 55

DIAMETER OF TURNING CIRCLE- FIRST QUARTER OF TURNING CIRCLE IS ____, AS TURN CONTINUES PP MOVES ____ AS FR INCREASES AND DRIFT ANGLE INCREASES. ALSO AS ____ DECREASES ____ DECREASES

Answer 55

LARGER, AFT, SPEED, ADVANCE (MOMENTUM) (HOOYER pg. 123)

Question 56

LOW RATE OF TURN

Answer 56

FIRST 10° (HOOYER pg. 122)

Question 57

PEAK RATE OF TURN

Answer 57

FROM 10-90° (HOOYER pg. 122)

Question 58

LOWER RATE OF TURN

Answer 58

BEYOND 90° (HOOYER pg. 122)

Question 59

WHEN SLOWING DOWN RUDDER CYCLING W/ SMALL COURSE ALTERATIONS - MORE EFFECTIVE IN ______ THAN ______ CONDITION.

Answer 59

BALLAST, LOADED

Question 60

WHEN SLOWING DOWN SPEED REDUCTION FROM FULL SPEED - 20 % AHEAD TURNS CREATES ______ RESISTANCE THAN _____ PROPELLER.

Answer 60

MORE, STOPPED | HOOYER P.32

Question 61

WHEN SLOWING DOWN SPEED REDUCTION FROM FULL SPEED - 20% AHEAD TURNS CREATES ____ RESISTANCE THAN STOPPED PROPELLER

Answer 61

MORE (HOOYER pg. 32)

Question 62

WHEN SLOWING DOWN SPEED REDUCTION FROM FULL SPEED - 20% ASTERN TURNS IS INITIALLY ____ EFFECTIVE THAN WORKING FULL ASTERN DUE TO ____

Answer 62

MORE, CAVITATION (HOOYER pg. 33)

Question 63

BT =

Answer 63

BOW THRUSTER

Question 64

BT- TURNING EFFECTIVENESS DROPS SIGNIFICANTLY AT SPEEDS OVER ____

Answer 64

2 KNOTS | BAUDU- 4 KNOTS (50%)

Question 65

BT - MOST EFFECTIVE WHEN _____, PP A BEAM WIDTH FROM THE ______

Answer 65

STOPPED, STERN | ROWE P. 90

Question 66

BT- MORE EFFECTIVE WITH _____ THAN WITH _______

Answer 66

STERNWAY, HEADWAY

Question 67

WITH _____ DON'T ALLOW SHIP TO WANDER TO FAR OFF OR DEVELOP ______ ____ __ ______

Answer 67

STERNWAY, LARGE RATE OF TURN

Question 68

LATERAL MOTION TO _____ EASIER TO MAINTAIN THAN TO ______

Answer 68

PORT, STARBOARD

Question 69

BT- GENERATES SMALL AMOUNT OF ______

Answer 69

HEADWAY

Question 70

1KW =

Answer 70

1.341 HP (1.351 SHP - ROWE P. 89)

Question 71

2000KW (2702 shp) OVERPOWERED BY _____ KTS OF WIND ON _____ CAR CARRIER

Answer 71

18, 200M

Question 72

BANK EFFECT - MORE ______ SUCTION EFFECT THAN _____ CUSHION EFFECT

Answer 72

STERN, BANK

Question 73

BANK EFFECT - SHIP _____ BODILY _____ THE BANK

Answer 73

SUCKED, TOWARDS

Question 74

BANK EFFECT - SHALLOW WATER _______ EFFECT

Answer 74

ACCENTUATES

Question 75

BANK EFFECT - BOW CUSHION & PP - LARGE SHIPS WITH HEIGHTENED BOW WAVE PUSH PP _____ GIVING LEVERAGE TO BOW CUSION WITH DANGER OF _____

Answer 75

AFT, SHEER (HOOYER P. 88,89)

Question 76

BANK EFFECT - ANCHOR WARNING - ______ USE ANCHOR TO BREAK SHEER IN _______ CHANNEL WITH _______ UKC.

Answer 76

DO NOT, NARROW, SMALL | HOOYER P.91