asked in the Class 4B exam of MMD. This is the part 15 of series
dealing with the Ship Safety and Environment Protection. Answer to these
questions will be available shortly. It is very important to have a
look of the questions that are asked in the previous year’s exam papers. Let’s
have a look at these questions.
a note (of about 250 words) on how you would take sounding of a Double Bottom
Tank on the Port aft of a ship and correctly calculate the amount of oil in the
the various types of pollution, that can be caused owing to a ships stores,
supplies, equipment, emission, cargo, etc. and the regulations they would be
listed under MARPOL 73/78 with annexes.
carbon dioxide fire extinguishers must be recharged _____________.
the remaining charge volume is less than 90% of the required volume
each biennial inspection
each annual inspection
the remaining charge weight is 10% less than the required weight
of the following conditions represents a particular advantage of using a
pressure demand type self-contained breathing apparatus in an atmosphere that
is immediately dangerous to life or health?
positive pressure in the face piece prevents contaminated air from entering the
average operating time for most air cylinders is over an hour.
equipment used is lightweight and easy to wear by reducing physical strain on
equipment is compact and the wearer can work in confined spaces without
Which of the following procedures is the generally
accepted method of determining whether the atmosphere within a cargo tank is
over rich, explosive, or too lean to support combustion?
Use the open flame test on a small sample that has been
taken from the tank.
Send a gas sample ashore for laboratory analysis.
Enter the tank with a teledyne oxygen analyzer.
Use an explosimeter.
Which of the firefighting foams listed would require
the mechanical mixing of air and foam concentrate?
Synthetic and alcohol foams
Aqueous film forming foam (AFFF)
All of the above
If you have to abandon ship, and enter a liferaft, your
main course of action should be to ________________.
remain in the vicinity of the sinking vessel
head for the closest land
head for the closest sea-lanes
get a majority opinion
In the absence of external forces, the center of
gravity of a floating vessel is located directly above the ___________.
center of flotation
geometric center of the displaced volume
To avoid excessive electrostatic effect in the crude
oil washing process, due to the presence of water in the crude oil washing
fluid, the contents of any tank to be used as a source of crude oil for washing
must first reduce a portion of the tank contents by a vertical height equal to
one and one-half meters
fuel/air mixture below the lower explosive limit is too ______________.
rich to burn
lean to burn
cool to burn
dense to burn
a bilge oil separator with controls and alarm.
reference to the carriage and pumping of liquefied gas cargo, state how the
risk of fire and explosion in cargo tanks is obviated both in the loaded and
the event of a failure of the main electrical power supply on a ship, an
emergency source of power must be available.
State the circuits which must be fed from such a source.
mechanical ventilation shutdown is required for CO2 systems
protecting the _____________.
Justify Your Answer
the routine testing required for self-contained breathing apparatus Sets.
the following three detection heads, and for each give a brief description of
quartzoid bulb sprinkler type.
regard to the roll motion of a ship in a seaway, Discuss the basic principles
of roll damping utilised in the following anti-roll systems:
roll damping tanks.
controlled roll damping tanks.
the relevance of discharge characteristic for the selection of an emergency
a cup of oil is spilled during bunkering in port which causes a sheen upon the
water it _____________.
must be reported to the National fire department
must be reported to the Coast Guard
must be reported to the harbormaster or its anti
need not be reported since the spill was less than 250
inform IOC / BP / HP
against oil spills when topping off fuel tanks, you should _____________.
close the deck filling valve to reduce the pumping rate
close all tank vents to prevent overflow
fill the tank to the bottom of the expansion trunk
notify the shore pumping station to reduce the pumping
rate as tanks near full capacity
Justify your Answer.