Miscellaneous Questions Flashcards
A crew member is lost overboard in fog. What is the most suitable method of returning the ship to a reciprocal course on its original track?
A Williamson turn
A ship turns around a point called the ‘pivot point’. What is the usual position of this point when the ship is at full sea speed?
At about 1/4 of the ship’s from yhe bow
A ship turn around a point called the ‘pivot point’. What is the position of this point when he ship is stopped in the water?
At the ship’s center of gravity
How should the anchor be positioned when a ship is due to anchor in a river with a strong curren?
It should be lowered to just above the water level
How should you minimize squat effect?
Decrease the speed
In relation to squat effect, which of the following statements is incorrect?
Squat result in a decrease in a ship’s draft
In ship handling terms, what is meant by “sinkage”?
Sinkage in the change of draft experienced when moving through water
In ship handling terms, which of these overtaking situations is the most dangerous?
A large overtaking a small vessel with little difference in speed between the two vessels
In which direction will the bow of a vessel move,with a single fixed pitch right-handed propeller which is turning astern?
To starboard
What would be the fog signal of a vessel aground in a channel?
A rapid ringing of the bell and three separate and distinct strokes on the bell immediately before and after ringing of the bell
What is normally the safest angle for a vessel to steer into steep waves?
60°
When told to rig a pilot ladder, which side do you choose?
The lee side
A power driven vessel observes the stern light of another power-driven vessel on a steady bearing and reducing range on the port bow. Which vessel must give way?
The observing vessel
A vessel is at anchor and displaying two anchor lights. What is the minimun vertical distance between the forward anchor light and the after anchor light?
Not less than 4.5 meters
A vessel joining the general direction of traffic flow in a traffic separation scheme from either side shall do so:
at as small an angle as practicable
A vessel not using the traffic separation scheme shall:
avoid id by as wide a margin as possible
A vessel shall, so far as is practicable, avoid crossing traffic separation lanes. But if obliged to do so shall cross the general direction of traffic flow.
on a heading as nearly as practicable at right angles
A vessel using a traffic separation scheme shall so far as practicable:
keep clear of the traffic separation line or separation zone
A vessel which can only safely navigate within a narrow channel or fairway shall not be impeded by:
sailing vessels, fishing vessels, vessels less than 20m or crossing vesssels
A vessel’s sidelights should be positioned above the hull, but according to the Collision Regulations what is the maximum height they can be placed?
Three-quarters the height of the forward masthead light
At night you notice, in addition to other lights, two yellow lights in a vertical line in which flash altermately every second. What does this indicate?
A fishing vessel hampered by her purse seine gear
At nigh, in addition to her sidelights, what else must a sailing vessel show?
A stern light
At sea during the day you see a vessel displaying two black cones wih their points together.What does this indicate?
A vessel engaged in fishing
At sea you sight a tug displaying this signal.What should you do?
Give assistance asa the tug is in distress
At what height above the hull should the forward anchor light be placed on a vessel of 50 meters or more in length?
6 meters
At what minimum height above the hull should the mastlight on a power driven vessel of length 60 meters and beam 9m be carried?
9 meters
For a power driven vessel less than 30 meters in length and 5 meters beam, at what height above the hull should be the mastlight be carried?
not less than 6 meters
For a power driven of 100 meters in length and 20 meters beam, what is the maximum height above the hull that the forward masthread light can be carried?
12 meters
For a which types of vessel should a fishing vessel not impede the passage in arrow cahnnel of fairway?
Any other vessels navigating within the narrow cahnnel or fairway
How should a vessel cross a traffic separation lane?
On a heading as nearly as practical art right angles to the direction of traffic flow
If a vessel is being towed alongside on the starboard side of the towing vessel, what lights should it show?
Sidelights and sternlight
If a vessel is being towed alongside on the starboard side of the towing vessel,what lights should it show?
Sidelights and sternlight
If another ship does not appear to be taking sufficient action to avoid a collision,what should you do according to the Collision Regulation?
Sound 5 short and rapid blast on the whistle
If the two vessel approach each other on collision course,what is meant by “ the critical period”
The period when action to prevent a collision has to be taken
If you have a main engine failure, what shapes would you exhibit?
Two black balls in a vertical line
If you hear a fog a signal forward of the beam,Rule 19 states must:
reduce to minimum steerage way
If your ship is in collision and the ships are locked together,which of the following should not always be done?
Go full astern to release the ships
If your ship is in collision in the waters of a foreign nations, which of the following is NOT a legal responsibilty for the MASTER?
Go as soon as possible to the nearest appropriate port to report to the authorities
In a traffic separation scheme a vessel engaged in fishing shall not impede the passage of:
any vessel following a traffic lane
In a traffic separation scheme a vessel of less than 20 meters in length or a sailing vessel shall not impede the safe passage of:
a power driven vessel following a traffic lane
In open waters, you see the lights right ahead at medium range.What do you do?
Sound one short blast and alter course to starboard
In the Collision Regulations, the Government of any State can make provision for special rules allowing the use of additional whistle signal between which vessels?
Warships and vessels sailing under convoy
Inshore traffic zones shall not be used by which of the following vessels?
One that can safely use the appropriate lane within the T.S.S
Is anchoring permitted in a narrow channel?
It should be avoided if at all possible
Looking straight ahead at night you observe the masthead lights and both side lights of another vessel.What action should be taken?
Each ship alter course to starboard
On nearing a bend in a narrow cahnnel and the way ahead is obscured,you hear a prolonged blast.What should be your response.
One prolonged blast
Referring to Annex II of the Collision Regulations; additional signals for fishing vessel in close proximity.What does the signal”one white light over one red light” mean?
I am hauling nets
The bearing is steady. The range is 5 miles, reducing slowly. What action would you take?
Sound one short blast and alter course to starboard
The International Regulations for Prevention of Collision at Sea includes:
instructions on action to take while plotting a ship by radar
The observed vessel sounds three short blasts. What does:
I am operating stern propulsion
The range is 7 miles and constant. The bearing is steady. What action would you take?
Maintain course and speed
The white light shown must be so fixed as to show an unbroken light over an arc of the horizon. What is the size of this arc?
225 deg. (20 points of the compass)
To which traffic separation schemes does Rule 10 apply?
Those adopted by the International Maritime Organization
Vessels as far as possible should avoid anchoring:
in a traffic separation scheme or in areas near it’s terminations
What additional lights does a vessel constrained by its draught have to show?
Three red lights in a vertical line
What would a vessel do to highlight a danger to another vessel, especially at night
Direct a search light in the direction of the danger
What do these three red lights indicate?
A vessel constrained by draught
What is a routeing measure aimed at the separation of opposing streams of traffic by establishing traffic lanes called?
Traffic separation scheme
What is the best way to monitor the risk of collision in poor visibility?
Monitor the radar display and post a lookout
What is the duration of a “short blast” on the whistle?
one second
What is the duration of a prolonged blast?
4-6 seconds
What is this vessel’s fog signal?
One prolonged blast followed by 2 short blasts at interval not exceeding two minutes
What kind of vessel may sound a fog signal consisting of four short blasts?
A vessel engaged on pilotage duty
What signal shall a vessel sound when nearing a bend or an area of narrow channels or fairway where other vessels may be obscured by an intervening obstruction?
One prolonged blast
When proceeding along a narrow channel a vessel should:
keep to the outer limit which lies on her starboard side
When proceeding in a narrow channel, you hear a vessel astern sound two prolonged blast followed by two short blast. What does this signal indicate?
The other vessel intends to overtake you on your port side
When should a sailing vessel keep out of the way of a power driven vessel?
When the sailing vessel is overtaking
When should a vessel not under command display the sternlight?
When making way through the water
When taking action to avoid collision under Rule 8, you should avoid:
a succession of small alterations of speed or course
When two power-driven vessels, in sight of each other, are crossing so as to involve risk of collision, avoiding action must be taken by:
the vessel which has the other on her own starboard side
When two ships are on reciprocal courses, what is meant by the “approaching vessel’s relative speed”?
The sum of the speed of the two vessels
When two whistles are fitted on a vessel and are placed more than 100m apart, what is the usual arrangement for giving maneuvering and warming signals?
Only one of the whistles is sounded
When underway, what is the principal threat to the ship?
To have a collision with another ship
A barograph is an instrument which records continuous:
pressure and pressure tendency
A falling barometer is an indication of:
bad weather to come
A squall line of sharp changes of wind, is very often associated with:
cold front
A suden rising strong wind, or suden increase of wind usually followed immediately by a shower of rain or snow is called a:
squall
Above what speed does a tropical depression have to travel to become classed as a tropical storn?
74 kph
An anti-cyclone is an area of:
high pressure, descending air and light winds
An occluded depression tends to move:
slowly and irregularly
Buys Ballot’s Law says that if a seafarer faces the wind in the southern hemisphere then the area of low pressure will be:
To the left
During which month do most tropical storm form in the northern hemisphere:
August
Fast moving high clouds are in indication of:
bad weather to come
From the following, what would be the maximun effect of barometric pressure on tidal heights?
0.3 meters
Frontal depressions move in families, each depression following its predecessor but in:
a slight lower latitude
If an observer is facing the wind in the northern hemisphere,where does the low pressure ie?
To the right
If an observer is facing the wind in the northern hemisphere, where does the high pressure lie?
To the left
If the atmosphere contains less water vapour than it is capable of holding at that temperature,it said to be:
saturated
If you are facing into the wind in the Southern Hemisphere,where would an area of low pressure lie?
To your left
A tropical revolving storm,”the eye” is a small central region of:
comaparatively light winds and little clouds
In an anti- cyclone in the northern hemisphere,the surface wind circulation:
clockwise, with the wind across the isobars at an angle towards the lower pressure
In an area with very high atmospheric pressure, the tides will:
be lower than predicted
In meteorology, isobar are lines joining places having the same:
pressure
In meteorology, isotherms are lines joining places having the same:
temperature
In the Beaufort weather notation, what is the meaning of the symbol RR?
Continuous heavy rain
In the Northern Hemisphere, the wind at sea level rotates around a depression in:
an anticlockwise direction at a small angle to the isobars inwards towards the center
In the Northern hemisphere, which direction will the wind be from just before a warm front arrives?
ESE
In the Northern hemisphere, which direction will the wind normally be from just before a cold front arrives?
SSE
In the Northern hemisphere, which is the most dangerous part of a storm in relation to the direction in which it is moving?
its right hand side
In what direction does the wind blow around a cyclonic storm in the Northern hemisphere
Anti - clockwise
In what latitude do tropical revolving storms generally originate?
0 to 25 degrees
In which area will the isobars be spaced closest,given the wind speed indicated?
40 kts
In which direction do jet streams normally travel?
North to South
In which direction does the Coriolis force deflect winds in the Southern hemisphere?
To the left
On the Beaufort scale, force 3 is described as a:
gentle breeze
On the Beaufort scale, force 5 is described as a:
fresh breeze
On the Beaufort scale, force 7 is described as a:
near gale
On the Beaufort scale, hurricane force corresponds wind:
force 12
On the Beaufort scale, storm force corresponds to wind:
force 10 and above
Sea waves will increase in height in certain conditions.From those listed,which is NOT one of hose conditions?
When they travel with a current
Showery precipitation is most likely to be produced by;
cumulus or cumulonimbus clouds
The direction of the center of a storm may be found by Buys Ballot’s law, namely face the wind and:
in the Northern hemisphere the center of the storm will bear 8 to 12 points to the right
The direction towards which a tidal stream runs is called:
set
The eye of a tropical revolving storm in an area with light wind but with seas that are:
very high and confused
The most accurate sea surface temperature would be obtained from a:
water sample obtained in an insulated bucket
The times of civil twilight are tabulated in the Nautical Almanac. These times are:
The LMT when the sun’s center reaches 6° below the visible horizon before sunrise and after sunset
The visual range corresponding to the term “moderate visibility” used in weather bulletin is:
2 to 5 nautical miles
Tropical maritime air is usually:
Cold, wet and stable
Tropical revolving storms are accompanied by:
heavy rain sometimes with thunder and lightning
What distance must visibility be reduced to before water vapour is classed as fog?
2 km
What do you tightly spaced isobars indicate?
Strong winds
What does it mean when the barometer shows air pressure to be rising?
Good weather is on the way
What instrument is used for measuring the velocity of the wind?
Anemometer
What is a “storm surge” of tide?
Raising the sea level due to long waves caused by strong winds blowing along a coast
What is the biggest cause of high waves forming?
Wind
What is the common name for hurricanes, typhoons or cyclones?
Tropical revolving storms
What is the instrument used for measuring humidity of the atmosphere called?
Psychrometer
What is the main factor which can make actual tidal heights and times different from the predicted heights and times?
Wind
What is the minimum sea water temperature necessary for a hurricane to develop?
26°
What is the name given to an elongated area of low pressure extending outwards from a depression?
A trough
What is the quantity of water vapour present in the atmosphere called?
Humidity
What level of visibility does “poor” indicate in a weather forecast?
Between 1000-2000m
What weather conditions are likely to result from the movement of warm air mass over a relatively colder sea surface?
Fog
What weather phenomenon can cause a reduction of radar range due to attenuation?
Rain and snow
What wind speeds are likely when a weather forecast predicts an imminent Force 8 gale?
Over 34 knots
When a marine thermometer is used to take air temperatures, it should be hung:
in a screen sited to windward
