Refresher - Refresher Course for STCW Modular Courses Exit Exam Questions - Set 2

Question 1

Which of the listed classes of fire is considered as one involving electrical equipment?

Accepted Answer

A: Class "C"

Answer

B: Class "D"

Answer

C: Class "B"

Answer

D: Class "A"

Question 2

Which of the following would be considered a Class “B” fire?

Accepted Answer

D: Oil fire in the engine room bilges

Answer

A: Electrical fire in a motor

Answer

B: Fire in the main switchboard

Answer

C: Waste rag fire in the engine room

Question 3

If ignited, which material would be a class B fire?

Accepted Answer

C: Diesel Oil

Answer

A: Wood

Answer

B: Paper

Answer

D: Magnesium

Question 4

Which of the listed extinguishing agents is NOT suitable for fighting a liquid paint fire?

Accepted Answer

A: Water

Answer

B: Foam

Answer

C: Dry chemical

Answer

D: Carbon dioxide

Question 5

Which extinguishing agent is most effective on a mattress fire?

Accepted Answer

B: Water

Answer

A: Dry Chemical

Answer

C: Foam

Answer

D: CO2

Question 6

You are fighting a fire in a watertight compartment using hoses and river water. Stability may be reduced because of:

Accepted Answer

C: Increase in free surface which reduces the metacentric height (GM)

Answer

A: Reduction of water in the storage tanks

Answer

B: Reduction of KG to the minimum allowable

Answer

D: Progressive down flooding

Question 7

When used to fight fire, carbon dioxide:

Accepted Answer

C: Is effective if used promptly on an oil fire

Answer

A: Is lighter than air

Answer

B: Has a greater cooling effect than water

Answer

D: Is harmless to cargo and crew

Question 8

Carbon dioxide as a firefighting agent has which advantage over other agents?

Accepted Answer

C: It causes minimal damage.

Answer

A: It is most effective on a per unit basis.

Answer

B: It is cheaper.

Answer

D: It is safer for personnel.

Question 9

To prevent the spread of fire by convection you should:

Accepted Answer

B: Close all openings to the area

Answer

A: Cool the bulkhead around the fire

Answer

C: Remove combustibles from direct exposure

Answer

D: Shut off all electrical power

Question 10

What is NOT a characteristic of carbon dioxide fire-extinguishing agents?

Accepted Answer

D: Effective even if ventilation is not shut down

Answer

A: Non-corrosive

Answer

B: Will not deteriorate in storage

Answer

C: Effective on electrical equipment

Question 11

Foam extinguishes a fire by:

Accepted Answer

C: Smothering the burning material

Answer

A: Destroying the burning materials

Answer

B: Absorbing the burning material

Answer

D: Chemical reaction with the burning material

Question 12

Immediately after a class "B" fire has been extinguished by the use of foam, crewmen should:

Accepted Answer

A: Be careful not to disturb the foam blanket

Answer

B: Wade through the foam blanket to evenly distribute the foam

Answer

C: Sweep the foam blanket overboard and secure firefighting equipment

Answer

D: Carefully apply a low velocity fog over the foam blanket

Question 13

The most likely location for a liquid cargo fire to occur on a tanker would be:

Accepted Answer

B: In the pump room

Answer

A: In the midships house

Answer

C: At the vent header

Answer

D: At the main deck manifold

Question 14

You should be most concerned about a possible explosion or fire in fuel tanks:

Accepted Answer

D: During fueling when the fuel first strikes the tank bottom

Answer

A: When underway as the fuel is moved by wave action

Answer

B: During fueling when the fuel strikes fuel already in the tank

Answer

C: Shortly after fueling when fuel vapors gather

Question 15

You have carbon tetrachloride as part of the cargo. If a fire breaks out in the general area, what is the major danger from the carbon tetrachloride?

Accepted Answer

D: Phosgene gas may be formed if it comes in contact with hot metal

Answer

A: It will explode if exposed to a flame

Answer

B: It will burn rapidly once ignited

Answer

C: You cannot use water to fight the fire because it will react with the carbon tetrachloride

Question 16

Radiation can cause a fire to spread by:

Accepted Answer

C: The transfer of heat across an unobstructed space

Answer

A: Burning liquids flowing into another space

Answer

B: Heated gases flowing through ventilation systems

Answer

D: Transmitting the heat of a fire through the ship’s metal

Question 17

To prevent the spread of fire by conduction, you should:

Accepted Answer

C: Cool the bulkheads around the fire

Answer

A: Close all openings to the area

Answer

B: Shut off all electric power

Answer

D: Remove combustibles from direct exposure

Question 18

You notice smoke coming from an open laundry room doorway. After activating the fire alarm, which of the following would you do FIRST?

Accepted Answer

C: Attempt to determine what is burning.

Answer

A: Acquire the nearest self-contained breathing apparatus.

Answer

B: Break out the nearest fire hose.

Answer

D: Wait for the fire team to arrive and assist as directed.

Question 19

You are on watch at night in port and discover a fire in #1 hatch. Which action should you take FIRST?

Accepted Answer

B: Sound the general alarm

Answer

A: Advise the Chief Mate and Master

Answer

C: Release carbon dioxide into the hatch

Answer

D: Lead a fire hose to the hatch

Question 20

The spreading of fire as a result of heat being carried through a vessel's ventilation system is an example of heat transfer by:

Accepted Answer

B: Convection

Answer

A: Conduction

Answer

C: Radiation

Question 21

Which of the following is NOT identified on the vessel's fire control plan?

Accepted Answer

A: Fire and emergency signals

Answer

B: Gas detector

Answer

C: Fire control plan

Answer

D: Dry chemical monitor

Question 22

The high velocity fog tip used with the all-purpose firefighting nozzle should always be:

Accepted Answer

C: Attached to the all-purpose nozzle by a chain

Answer

A: Stowed separately in a clip or rack at each fire station

Answer

B: Coated with heavy grease to prevent corrosion

Answer

D: Painted red to be identified as emergency equipment

Question 23

The most common and widely used cooling agent used for fighting fires on merchant vessels is:

Accepted Answer

A: Water

Answer

B: Carbon dioxide

Answer

C: Steam smothering

Answer

D: Flue gas

Question 24

The outlet at a fire hydrant may be positioned anywhere from horizontal to pointing:

Accepted Answer

A: Vertically downward

Answer

B: Vertically upward

Answer

C: 45° upward

Question 25

The primary function(s) of an automatic sprinkler system is(are) to:

Accepted Answer

A: Limit the spread of fire and control the amount of heat produced

Answer

B: Extinguish the fire which triggers it

Answer

C: Alert the crew to the fire

Answer

D: Protect people in the areas which have sprinkler heads

Question 26

If a portable carbon dioxide fire extinguisher has been partially discharged, it should be immediately:

Accepted Answer

A: Tagged ’empty' and stowed separately from charged extinguishers

Answer

B: Weighed and the charge loss recorded before being returned to its rack

Answer

C: Given to the chief engineer for recharging

Answer

D: Tagged and restowed properly in its rack

Question 27

Which statement about firefighting foam is TRUE?

Accepted Answer

D: Foam conducts electricity

Answer

A: Foam is most effective on burning liquids which are flowing.

Answer

B: To be most effective, foam should be directed at the base of the fire.

Answer

C: Foam can ONLY be used to extinguish class A fires.

Question 28

Which of the following hazards is associated with fuel oil fires?

Accepted Answer

D: Flashover of confined vapor clouds

Answer

A: Reduced fire-fighting effectiveness due to low oxygen content

Answer

B: Emission of highly flammable vapors

Answer

C: Emission of noxious gases

Question 29

A carbon dioxide fire extinguisher is required to be recharged if the weight loss exceeds what percentage of the weight of the charge?

Accepted Answer

B: Ten percent

Answer

A: One percent

Answer

C: Seven percent

Answer

D: Five percent

Question 30

Fire hydrant valves on a crude oil tanker shall be isolated from the crude oil washing system by

Accepted Answer

A: Spade blanks

Answer

B: Face blanks

Answer

C: Non-return valves

Answer

D: Automatic closing valves

Refresher Course for STCW Modular Courses (Set 2)

Which of the listed classes of fire is considered as one involving electrical equipment?

Questions in Refresher Set 2

Question Discussion & Notes

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