TANKERS FULL QUESTION BANK
ANSWERED CORRECTLY &
GRADED A+
Which statement about a centrifugal cargo pump is TRUE?
A. It must have a positive suction.
B. It is a positive displacement pump.
C. Increasing rotation speed will decrease discharge pressure.
D. All of the above-Answer-A
Which statement is TRUE concerning deep well self-priming pumps?
A. In recent years deep well pumps have become increasingly unpopular in product
tankers and medium size crude ships.
B. When loading oil cargo, it is always loaded via the discharge line through to the pump
until the tank is topped off.
C. There is no danger of damaging the pump from overheating.
D. Stripping systems are generally eliminated for the purposes of cargo handling.-
Answer-D
What is a single fitting installed in a pipeline that either blanks off the pipe or allows a
full flow passage of a liquid through the
pipe?
A. pivot coupling
B. spectacle flange
C. blind flange
D. quick-release coupling-Answer-B
What is TRUE of pressure/vacuum valves?
A. They are designed to provide for the flow of small volumes of tank atmospheres
caused by thermal variations in a cargo
tank.
B. They should be kept in good working order by regular inspection and cleaning.
C. They should operate in advance of the pressure/vacuum breakers.
D. All of the above.-Answer-D
Tankers that are in service carrying "sour crudes" are faced with additional problems for
their safe operation. One such problem
is called "polyphoric oxidation" what does this result in?
A. particles of rust in the tanks reaching a high temperature during "gas free"
operations.
B. a lighter grade of crude being needed for tank washing.
C. additional time for tank cleaning.
D. a second scrubber, known as an alkaline scrubber, to be added in series to the
"normal" scrubber.-Answer-A
,On tankers using manually operated tank valves, what does the deck hand wheel
indicator register?
A. approximate number of turns the tank valve has been opened
B. exact lift position of the tank valve disk, through 100% of its operation
C. oxygen content of the tank
D. level of oil in the tank-Answer-A
What is the purpose of the relief valve of a cargo pump?
A. Allows two or more tanks to be filled at the same time
B. Permits the return of cargo to the suction side of the pump
C. Provides for the emergency shutdown of the pump
D. Provides for the removal of vapors-Answer-B
Line Displacement" is a procedure that is followed at an oil terminal facility, when there
is a change of which of the following?
A. product during the final phase of loading
B. product before the start of loading
C. cargo lines at the terminal before loading
D. product after the final discharge-Answer-A
Which of the following is equivalent to a "barrel", which is a unit of liquid measure?
A. 40 U.S. gallons at 50° F
B. 45 U.S. gallons at 75° F
C. 43 U.S. gallons at 65° F
D. 42 U.S. gallons at 60° F-Answer-D
What is NOT a precaution to be taken when topping off?
A. Maintain communications with the dock man.
B. Reduce the loading rate.
C. Notify the engine room of the procedure.
D. Give the operation your undivided attention.-Answer-C
Which of the following terms best describes the amount of product in a tank measured
from the tank top to the level of liquid?
A. Innage
B. Thievage
C. Outage
D. Ullage-Answer-D
Which of the following procedures would insure proper seating of the valve when
closing?
A. set up tight using a valve wrench
B. closed, opened a half turn, and then closed again
C. closed against the stop and the locking pin inserted
D. set up as tight as possible by hand-Answer-B
, Your tank vessel is loaded down to her marks, and you find that she has too much trim
by the stern. Which of the following
action would reduce the excessive trim?
A. add ballast forward
B. load more cargo forward
C. shift bunkers forward
D. discharge cargo from the after tanks-Answer-C
What happens to the volume of flammable and combustible liquids when temperature is
increased?
A. it remains constant if pressure remains constant
B. it contracts
C. it remains constant
D. it expands-Answer-D
Which of the following is a characteristic of Methane gas?
A. it is corrosive
B. it is volatile
C. it is odorless
D. it is active-Answer-C
The terminal indicates to you that they are going to use a booster pump to assist the
discharging operation. You start the
discharge, and in a few minutes the pressure drops sharply. This could be a result of
the .
A. ship's pump speeding up
B. booster pump failing to start
C. booster pump being lined up in the wrong direction
D. booster pump coming on the line and discharging properly-Answer-D
When stripping a tank, excessive air in the suction line may cause .
A. an over pressurized line
B. loss of suction
C. increase of suction
D. back pressure-Answer-B
You are on a tankship discharging oil. what happens to the remaining oil when all of the
oil that the main cargo pumps can
handle is pumped out of a tank?
A. the remainder is stripped out and pumped directly ashore after all the tanks have
been emptied by the main pumps
ANSWERED CORRECTLY &
GRADED A+
Which statement about a centrifugal cargo pump is TRUE?
A. It must have a positive suction.
B. It is a positive displacement pump.
C. Increasing rotation speed will decrease discharge pressure.
D. All of the above-Answer-A
Which statement is TRUE concerning deep well self-priming pumps?
A. In recent years deep well pumps have become increasingly unpopular in product
tankers and medium size crude ships.
B. When loading oil cargo, it is always loaded via the discharge line through to the pump
until the tank is topped off.
C. There is no danger of damaging the pump from overheating.
D. Stripping systems are generally eliminated for the purposes of cargo handling.-
Answer-D
What is a single fitting installed in a pipeline that either blanks off the pipe or allows a
full flow passage of a liquid through the
pipe?
A. pivot coupling
B. spectacle flange
C. blind flange
D. quick-release coupling-Answer-B
What is TRUE of pressure/vacuum valves?
A. They are designed to provide for the flow of small volumes of tank atmospheres
caused by thermal variations in a cargo
tank.
B. They should be kept in good working order by regular inspection and cleaning.
C. They should operate in advance of the pressure/vacuum breakers.
D. All of the above.-Answer-D
Tankers that are in service carrying "sour crudes" are faced with additional problems for
their safe operation. One such problem
is called "polyphoric oxidation" what does this result in?
A. particles of rust in the tanks reaching a high temperature during "gas free"
operations.
B. a lighter grade of crude being needed for tank washing.
C. additional time for tank cleaning.
D. a second scrubber, known as an alkaline scrubber, to be added in series to the
"normal" scrubber.-Answer-A
,On tankers using manually operated tank valves, what does the deck hand wheel
indicator register?
A. approximate number of turns the tank valve has been opened
B. exact lift position of the tank valve disk, through 100% of its operation
C. oxygen content of the tank
D. level of oil in the tank-Answer-A
What is the purpose of the relief valve of a cargo pump?
A. Allows two or more tanks to be filled at the same time
B. Permits the return of cargo to the suction side of the pump
C. Provides for the emergency shutdown of the pump
D. Provides for the removal of vapors-Answer-B
Line Displacement" is a procedure that is followed at an oil terminal facility, when there
is a change of which of the following?
A. product during the final phase of loading
B. product before the start of loading
C. cargo lines at the terminal before loading
D. product after the final discharge-Answer-A
Which of the following is equivalent to a "barrel", which is a unit of liquid measure?
A. 40 U.S. gallons at 50° F
B. 45 U.S. gallons at 75° F
C. 43 U.S. gallons at 65° F
D. 42 U.S. gallons at 60° F-Answer-D
What is NOT a precaution to be taken when topping off?
A. Maintain communications with the dock man.
B. Reduce the loading rate.
C. Notify the engine room of the procedure.
D. Give the operation your undivided attention.-Answer-C
Which of the following terms best describes the amount of product in a tank measured
from the tank top to the level of liquid?
A. Innage
B. Thievage
C. Outage
D. Ullage-Answer-D
Which of the following procedures would insure proper seating of the valve when
closing?
A. set up tight using a valve wrench
B. closed, opened a half turn, and then closed again
C. closed against the stop and the locking pin inserted
D. set up as tight as possible by hand-Answer-B
, Your tank vessel is loaded down to her marks, and you find that she has too much trim
by the stern. Which of the following
action would reduce the excessive trim?
A. add ballast forward
B. load more cargo forward
C. shift bunkers forward
D. discharge cargo from the after tanks-Answer-C
What happens to the volume of flammable and combustible liquids when temperature is
increased?
A. it remains constant if pressure remains constant
B. it contracts
C. it remains constant
D. it expands-Answer-D
Which of the following is a characteristic of Methane gas?
A. it is corrosive
B. it is volatile
C. it is odorless
D. it is active-Answer-C
The terminal indicates to you that they are going to use a booster pump to assist the
discharging operation. You start the
discharge, and in a few minutes the pressure drops sharply. This could be a result of
the .
A. ship's pump speeding up
B. booster pump failing to start
C. booster pump being lined up in the wrong direction
D. booster pump coming on the line and discharging properly-Answer-D
When stripping a tank, excessive air in the suction line may cause .
A. an over pressurized line
B. loss of suction
C. increase of suction
D. back pressure-Answer-B
You are on a tankship discharging oil. what happens to the remaining oil when all of the
oil that the main cargo pumps can
handle is pumped out of a tank?
A. the remainder is stripped out and pumped directly ashore after all the tanks have
been emptied by the main pumps
