In this post I have discussed questions that are
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.
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.
Questions Bank of Ship Safety and Environment Protection for Class 4B MMD exam
1. Give
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
tank.
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
tank.
2. State
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.
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.
3. Portable
carbon dioxide fire extinguishers must be recharged _____________.
carbon dioxide fire extinguishers must be recharged _____________.
A. when
the remaining charge volume is less than 90% of the required volume
the remaining charge volume is less than 90% of the required volume
B. at
each biennial inspection
each biennial inspection
C. at
each annual inspection
each annual inspection
D. when
the remaining charge weight is 10% less than the required weight
the remaining charge weight is 10% less than the required weight
Briefly Justify Your Answer
4. Which
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?
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?
A. The
positive pressure in the face piece prevents contaminated air from entering the
facepiece.
positive pressure in the face piece prevents contaminated air from entering the
facepiece.
B. The
average operating time for most air cylinders is over an hour.
average operating time for most air cylinders is over an hour.
C. The
equipment used is lightweight and easy to wear by reducing physical strain on
the wearer.
equipment used is lightweight and easy to wear by reducing physical strain on
the wearer.
D. The
equipment is compact and the wearer can work in confined spaces without
difficulty.
equipment is compact and the wearer can work in confined spaces without
difficulty.
Briefly Justify Your Answer
5.
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?
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?
A.
Use the open flame test on a small sample that has been
taken from the tank.
Use the open flame test on a small sample that has been
taken from the tank.
B.
Send a gas sample ashore for laboratory analysis.
Send a gas sample ashore for laboratory analysis.
C.
Enter the tank with a teledyne oxygen analyzer.
Enter the tank with a teledyne oxygen analyzer.
D.
Use an explosimeter.
Use an explosimeter.
Briefly Justify Your Answer
6.
Which of the firefighting foams listed would require
the mechanical mixing of air and foam concentrate?
Which of the firefighting foams listed would require
the mechanical mixing of air and foam concentrate?
A.
Protein foam
Protein foam
B.
Synthetic and alcohol foams
Synthetic and alcohol foams
C.
Aqueous film forming foam (AFFF)
Aqueous film forming foam (AFFF)
D.
All of the above
All of the above
Briefly Justify Your Answer
7.
If you have to abandon ship, and enter a liferaft, your
main course of action should be to ________________.
If you have to abandon ship, and enter a liferaft, your
main course of action should be to ________________.
A.
remain in the vicinity of the sinking vessel
remain in the vicinity of the sinking vessel
B.
head for the closest land
head for the closest land
C.
head for the closest sea-lanes
head for the closest sea-lanes
D.
get a majority opinion
get a majority opinion
Briefly Justify Your Answer
8.
In the absence of external forces, the center of
gravity of a floating vessel is located directly above the ___________.
In the absence of external forces, the center of
gravity of a floating vessel is located directly above the ___________.
A.
metacenter
metacenter
B.
amidships
amidships
C.
center of flotation
center of flotation
D.
geometric center of the displaced volume
geometric center of the displaced volume
Briefly Justify Your Answer
9.
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
____________.
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
____________.
A.
one-half meter
one-half meter
B.
one meter
one meter
C.
one and one-half meters
one and one-half meters
D.
two meters
two meters
Briefly Justify Your Answer
10. A
fuel/air mixture below the lower explosive limit is too ______________.
fuel/air mixture below the lower explosive limit is too ______________.
A.
rich to burn
rich to burn
B.
lean to burn
lean to burn
C.
cool to burn
cool to burn
D.
dense to burn
dense to burn
11. Sketch
a bilge oil separator with controls and alarm.
a bilge oil separator with controls and alarm.
12. With
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
discharged condition.
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
discharged condition.
13. In
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.
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.
14.
Automatic
mechanical ventilation shutdown is required for CO2 systems
protecting the _____________.
Automatic
mechanical ventilation shutdown is required for CO2 systems
protecting the _____________.
(a)
machinery spaces
machinery spaces
(b)
cargo compartments
cargo compartments
(c)
living quarters
living quarters
(d) galley
Briefly
Justify Your Answer
Justify Your Answer
15. Describe
the routine testing required for self-contained breathing apparatus Sets.
the routine testing required for self-contained breathing apparatus Sets.
16. Sketch
the following three detection heads, and for each give a brief description of
their operation.
the following three detection heads, and for each give a brief description of
their operation.
(a) Rate of air temperature rise detector.
(b) Flame detector.
(c) Fixed temperature fire detector of the
quartzoid bulb sprinkler type.
quartzoid bulb sprinkler type.
17. With
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:
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:
(a) Bilge
keels.
keels.
(b) Activated
fins.
fins.
(c) Passive
roll damping tanks.
roll damping tanks.
(d) Passive
controlled roll damping tanks.
controlled roll damping tanks.
18. With reference to centrifugal pumps, explain
the relevance of discharge characteristic for the selection of an emergency
Fire pump.
the relevance of discharge characteristic for the selection of an emergency
Fire pump.
19. If
a cup of oil is spilled during bunkering in port which causes a sheen upon the
water it _____________.
a cup of oil is spilled during bunkering in port which causes a sheen upon the
water it _____________.
(a)
must be reported to the National fire department
must be reported to the National fire department
(b)
must be reported to the Coast Guard
must be reported to the Coast Guard
(c)
must be reported to the harbormaster or its anti
pollution wing
must be reported to the harbormaster or its anti
pollution wing
(d)
need not be reported since the spill was less than 250
barrels
need not be reported since the spill was less than 250
barrels
(e)
inform IOC / BP / HP
inform IOC / BP / HP
Briefly Justify
your Answer
your Answer
20. As a precaution
against oil spills when topping off fuel tanks, you should _____________.
against oil spills when topping off fuel tanks, you should _____________.
(a)
close the deck filling valve to reduce the pumping rate
close the deck filling valve to reduce the pumping rate
(b)
close all tank vents to prevent overflow
close all tank vents to prevent overflow
(c)
fill the tank to the bottom of the expansion trunk
fill the tank to the bottom of the expansion trunk
(d)
notify the shore pumping station to reduce the pumping
rate as tanks near full capacity
notify the shore pumping station to reduce the pumping
rate as tanks near full capacity
Briefly
Justify your Answer.
Justify your Answer.
