EXAM #3 Flashcards Preview

MART-215 > EXAM #3 > Flashcards

Flashcards in EXAM #3 Deck (84):
1

If you shorten the scope of anchor chain, the anchor’s holding power may?

Decrease

2

Generally, the maximum speed for letting go the anchor is?

4 knots

3

The safety stopper that prevents the anchor chain from running free if the chain jumps the wildcat is the?

riding pawl

4

The slowest speed the vessel can travel while allowing the operator to maintain directional control and produce minimum water turbulence is referred to as?

bare steerage

5

The highest percentage of vapor at which an explosion will occur is referred to as the?

Upper Explosive Limit (UEL), Upper Flammable Limit (UFL)

6

It is easier to dock a single-screw vessel with a right-hand turning wheel going ______ side to the dock.

port

7

A bow thruster generally loses its effectiveness when the ship speed exceeds?

2 knots

8

The ______ propeller always turns the same direction for ahead and astern motion.

controllable pitch

9

Using the anchor to assist in controlling the movement of the vessel is called __________ the anchor.

dredging

10

term applied to the bottom shell plating in a double-hull ship is ________.

outer bottom

11

The anchors on the bow are known as _____ anchors.

bower

12

The function of the bilge keel is to ________ of the vessel.

reduce the rolling

13

The two types of framing systems are _______ and ______.

transverse, longitudinal

14

_______ help to determine the shape of the ship by supporting and stiffening the shell plating.

Frames

15

The term “strake” is used in reference to ________.

hull plating

16

The first transverse bulkhead aft of the stem is known as the _______ bulkhead.

collision

17

The forward movement of a vessel in one revolution of its propeller is measured by ________.

the pitch

18

The opening in the deck beneath the anchor windlass that leads to the chain locker is the _______.

spill pipe

19

The part of the windlass which physically engages the chain during hauling or paying out is the _______.

wildcat

20

Vertical flat plates running transversely and connecting the vertical keel to the margin plates are called the ________.

floors

21

As the angle of the stock and anchor chain with the bottom increases, the holding power of the anchor _____.

decreases

22

The machinery associated with heaving in and running out anchor chain is the _______.

windlass

23

In the Dry Dock, the ship sits on _______ and ________.

keel blocks, bilge blocks

24

As the propeller turns, voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency, pitting of the blades, and vibration. These voids are known as?

cavitation

25

The _______ takes control of the ship once the bow crosses the ______ of the Dry Dock.

Dry Dock Master, sill

26

When turning a vessel in shallow water, the ________ increases

turning diameter

27

______ is the process of mixing paint back and forth between two cans.

Boxing

28

The double bottom ________ support the ________ or tank top.

floors, inner bottom

29

While positioning and anchoring your vessel, the best time to let go the anchor is when the vessel is _______ and _______.

stemming the current, moving slowly astern over the ground

30

When dropping the anchor, you are stationed at the windlass brake. The most important piece of PPE to have on is _______.

goggles

31

The distance gained in the direction of the original course when you are making a turn is known as _______.

advance

32

You are on a course of 270 degrees True and put the rudder left 30 degrees. Transfer will be measured in the direction of ______ degrees True

180

33

The pivot point of a fully loaded vessel with normal trim, proceeding ahead at sea speed is located ____________

one third the length of the vessel from the bow

34

You are conning a twin-screw vessel going ahead with rudders amidships. If the starboard screw stops turning, the bow will go to _______.

starboard

35

You are on a single-screw vessel with a left-handed propeller making no way in the water. When you apply left rudder the bow will _________

not move-the vessel has no way

36

You are on a single-screw vessel with a right-hand propeller. The vessel is going full astern, making sternway, with full right rudder. The bow will go to _____.

port

37

When underway and proceeding ahead, as the vessel speed decreases the pivot point tends to _______.

move aft

38

If your vessel is dragging her anchor in a strong wind, you should ________.

pay out more chain.

39

Lifting the anchor from the bottom is called _______.

weighing anchor

40

Before letting the anchor go, you should check to be sure the _____ is disengaged.

wildcat

41

In order to permit drainage of water to scuppers, which direct the flow overboard, decks are _______.

cambered

42

When anchoring, it is a common rule of thumb to use a length of chain _____ the depth of the water

5-7 times

43

The length of a standard “shot” of chain is ____ feet.

90

44

To safely anchor a vessel there must be sufficient “scope” in the anchor chain. Scope is the ratio of the ___ of chain to ____ of water.

length, depth

45

The _______ is generally used to connect shot of anchor chain.

detachable link

46

A bare steel surface should have a ______ color prior to painting

metallic

47

______, used to minimize galvanic corrosion, are replaced on the hull of a ship during a dry dock period.

sacrificial zinc anodes

48

The _____ propeller always turns the same direction for ahead and astern motion.

controllable pitch

49

Federal regulations require that you must maintain a proper _______ when you are at anchor.

anchor watch

50

When dredging the anchor, the length of anchor chain used will be ________

1.5-2 times the distance from the hawse pipe to the bottom.

51

The open end of a graving dock is usually closed by a ______ or a ______.

floating caisson, gate

52

Name the three lines that a Tug attaches to a ship:

1. Backing Line
2. Tow Strap
3. Stern Line

53

Tugs power used to move the ship _______ or to _______ ship's speed.

laterally, reduce

54

Lashing up a tug to a ship is usually done on ________ ships.

dead

55

A Tug should be angled into the ship about _____ degrees to maximize propeller and rudder efficiency.

15

56

Tugs may cause unwanted _____ or _____ motion

lateral, longitudinal

57

In restricted space the _____ has an advantage over the tug on the bow.

thruster

58

To produce thrust the impeller in the tunnel must build up a _________.

substantial flow of water

59

A bow thruster will pivot a ship about a point that is approximately ____________.

one ship's beam forward of the beam

60

T/F: Thrusters are usable at very light drafts.

False

61

A thruster is most useful at speeds of _______.

two knots or less.

62

Bow thruster moves the _____ directly over in the direction of the desired swing.

foreship

63

Speed is the cause of ____ % of accidents.

90

64

5 Steps to Voyage Planning:

1.Objective
2.Appraisal
3.Planning
4.Execution
5.Monitoring

65

Controllable Pitch Propellers are usually _____ turning.

left hand

66

T/F: The engine on a controllable pitch propeller doesn't need to be stopped to go astern.

True

67

Controllable pitch propellers can easily foul a _______ because the are always spinning.

mooring line

68

Twin screws are usually ________ turning

outboard

69

The effectiveness of a rudder is measured by the _________

flow of water across it

70

The rudder has little effect to ______ until the ship develops stern way.

backing

71

_______ includes everything between the wheel in the pilot house to the rudder.

"Steering Gear"

72

The steering system is made up of three parts:

1.control equipment
2.power unit
3.transmission to the rudder stock

73

Must be _____ independent means of steering.

2

74

The power and torque capability must be such that the rudder can be swung from ___degrees on one side to ___degrees on the other side with the ship at _____ speed and ______ draft

35, 35, maximum, deepest

75

The time from 35 degrees on one side to 30 degrees on the other side must not exceed _____ seconds.

28

76

An alarm that is Visual and audible located on Bridge and at Engine Room Control Station. Must go off if power fails to either of the steering power units.

Power Failure

77

An alarm that is Visual and Audible located on Bridge and at Engine Room Control Station. Indicates overload or problem with motor or pump. If pump should kick off line while in operation the alarm will notify the watch.

Motor Alarm

78

An alarm that is Visual and audible located on Bridge and at Engine Room Control Station. Indicates power failure to any steering gear control circuit or remote control circuit

Control Power Failure

79

An Alarm that is Visual and audible located on Bridge and at Engine Room Control Station. Indicates which power unit us running and which is on standby.

Motor Running Indicatorsq

80

An alarm that is Visual and audible located on Bridge and at Engine Room Control Station. Indicates low oil level in the hydraulic oil tank that supplies any power unit. Very serious casualty needing immediately attention. Secure the pump and if circumstances permit, determine cause of oil loss before starting other unit. Storage tank must have sufficient capacity to totally refill the steering gear oil pumps piped to the tank.

Low Oil Level Alarm

81

______ automatically steer the ship on a set course.

Autopilot

82

The 1st autopilot was installed on the tanker ______

J.A. Moffat

83

Define: Helmsman steers ship by use of the ship’s wheel. The helmsman operates the helm assembly to the desired helm order and the ship responds to the ordered helm change?

Hand Electric

84

Define: The Rotary Power Unit solenoids are controlled directly and no follow up is provided. The helm and rudder remain at the angle set until such time as the helm and rudder are brought back to amidships?

Non Follow Up