BECC Mod 6 EXAM 2023 WITH QUESTIONS AND
ANSWERS
Jet - ANSWER Which pump uses a high velocity jet of seawater to lower the
pressure in the chamber around the converging nozzle?
False - ANSWER (TRUE/FALSE) A fixed volume of fluid is discharged by an
eductor regardless of head pressure.
Helical tube - ANSWER Which type of heat exchanger has one or more coils of
tubing installed inside a shell?
Cross flow type - ANSWER Which type of heat exchanger uses one fluid flow at
right angles (90°) with the other fluid?
C - ANSWER The gear that is widely used in the main reduction gear
E - ANSWER The gear that is used to transform rotary motion to linear motion?
B - ANSWER Which is a worm gear?
Syntron - ANSWER The rubber-lip-type seal assembly is know as....... seals.
Line shaft bearings - ANSWER The shafts radial alignment, within the hull of the
ship, is maintained
by the ........
Second reduction gear - ANSWER Which gear is known as the Bull Gear?
First reduction pinion - ANSWER The high speed flexible coupling is used to
couple turbines to the ......
E - ANSWER Which is a needle bearing?
A - ANSWER Which bearing absorbs the axial movement of the propulsion shaft?
B - ANSWER Which is lined with babbit material?
A.Tank gauge, tank table, sounding tape - ANSWER What 3 items are used to
measure fuel oil in tanks?
Indirect reading sight glass - ANSWER What type of reading sight glass uses a
, vertical pipe with a magnetic float that rides on the surface of the fuel oil?
Recirculation line - ANSWER What part of the AMCW prevents overheating by
allowing seawater to flow through the pump during low load conditions?
E - ANSWER In which type of coupling are the shafts out of line and at an angle?
C - ANSWER Which coupling does not accommodate for any misalignment?
A - ANSWER Which is a pin type coupling?
H - ANSWER Used to close the end of a internally threaded pipe fitting.
F - ANSWER Used to connect straight sections of pipe for easy assembly and
disassembly.
B - ANSWER Which is the straight coupling?
E - ANSWER Removes debris and prevents clogging of small cooling passages in
the auxiliary machinery and orifices serviced by the AMCW system.
J - ANSWER Which component connects the AMCW system discharge back to the
sea?
C - ANSWER Prevents the orifice from becoming clogged with debris.
True - ANSWER (True/False) Calcium Hypochlorite is classified as dangerous
materials and requires special storage precautions.
Automatic proportioning and recirculating - ANSWER What are the two types of
bromine feeder the Navy uses onboard ships?
Centrifugal pump - ANSWER What type of pump uses the throwing force of a
rapidly revolving impeller?
B - ANSWER Which type of gear arrangement has the advantage of producing a
large speed reduction or increase in a compact unit?
E - ANSWER Which gear is the rack and pinion gear?
C - ANSWER Which is the double helical gear?
Reciprocating - ANSWER Which pump uses a piston to move a fluid?
Conduction - ANSWER Heat transfer from physical contact between two
substances is known as .......
ANSWERS
Jet - ANSWER Which pump uses a high velocity jet of seawater to lower the
pressure in the chamber around the converging nozzle?
False - ANSWER (TRUE/FALSE) A fixed volume of fluid is discharged by an
eductor regardless of head pressure.
Helical tube - ANSWER Which type of heat exchanger has one or more coils of
tubing installed inside a shell?
Cross flow type - ANSWER Which type of heat exchanger uses one fluid flow at
right angles (90°) with the other fluid?
C - ANSWER The gear that is widely used in the main reduction gear
E - ANSWER The gear that is used to transform rotary motion to linear motion?
B - ANSWER Which is a worm gear?
Syntron - ANSWER The rubber-lip-type seal assembly is know as....... seals.
Line shaft bearings - ANSWER The shafts radial alignment, within the hull of the
ship, is maintained
by the ........
Second reduction gear - ANSWER Which gear is known as the Bull Gear?
First reduction pinion - ANSWER The high speed flexible coupling is used to
couple turbines to the ......
E - ANSWER Which is a needle bearing?
A - ANSWER Which bearing absorbs the axial movement of the propulsion shaft?
B - ANSWER Which is lined with babbit material?
A.Tank gauge, tank table, sounding tape - ANSWER What 3 items are used to
measure fuel oil in tanks?
Indirect reading sight glass - ANSWER What type of reading sight glass uses a
, vertical pipe with a magnetic float that rides on the surface of the fuel oil?
Recirculation line - ANSWER What part of the AMCW prevents overheating by
allowing seawater to flow through the pump during low load conditions?
E - ANSWER In which type of coupling are the shafts out of line and at an angle?
C - ANSWER Which coupling does not accommodate for any misalignment?
A - ANSWER Which is a pin type coupling?
H - ANSWER Used to close the end of a internally threaded pipe fitting.
F - ANSWER Used to connect straight sections of pipe for easy assembly and
disassembly.
B - ANSWER Which is the straight coupling?
E - ANSWER Removes debris and prevents clogging of small cooling passages in
the auxiliary machinery and orifices serviced by the AMCW system.
J - ANSWER Which component connects the AMCW system discharge back to the
sea?
C - ANSWER Prevents the orifice from becoming clogged with debris.
True - ANSWER (True/False) Calcium Hypochlorite is classified as dangerous
materials and requires special storage precautions.
Automatic proportioning and recirculating - ANSWER What are the two types of
bromine feeder the Navy uses onboard ships?
Centrifugal pump - ANSWER What type of pump uses the throwing force of a
rapidly revolving impeller?
B - ANSWER Which type of gear arrangement has the advantage of producing a
large speed reduction or increase in a compact unit?
E - ANSWER Which gear is the rack and pinion gear?
C - ANSWER Which is the double helical gear?
Reciprocating - ANSWER Which pump uses a piston to move a fluid?
Conduction - ANSWER Heat transfer from physical contact between two
substances is known as .......
