ASSIGNMENT 4
Textbook Assignment: Associated Launching Equipment," and "The Aircraft Launch and
Recovery Equipment Maintenance Program (ALREMP)"; chapters 5 and 6,
pages 5-1 through 6-20.
4-1.
4-2.
4-3.
4-4.
4-5.
4-6.
The Mk 7 Mod 0 JBD consists of a
total of how many watercooled
panels?
1.
Six
2.
Two
3.
Eight
4.
Four
A total of how many hydraulic
cylinders are used to raise and
lower each pair of JBD panels?
1.
Six
2.
Two
3.
Eight
4.
Four
The removable module assemblies are
attached to the JBD panel assembly
by what devices?
1.
Welds
2.
Clamps
3.
Edge-fitted brackets
4.
Screws
The JBD cooling water must be
maintained at what minimum
pressure?
1.
60 psi
2.
70 psi
3.
80 psi
4.
90 psi
The emergency lowering hydraulic
bypass lines permit fluid to bypass
what component of the JBD hydraulic
system?
1.
The lowering side of the
hydraulic cylinder
2.
The solenoid manual override
3.
The four-way control valves
4.
The gravity tank
What devices control the flow of
cooling water through the Mk 7 JBD
panel module assemblies?
1.
Throttle valves
2.
Vacuum breaker valves
3.
Orifices
4.
Manual hand valves
4-7.
Where is the Mk 7 JBD auxiliary
control panel located?
1.
At deckedge
2.
In the retraction-engine
machinery room
3.
In the JBD machinery room
4.
At the catapult main control
console
4-8.
JBD control is transferred from the
portable control box to the
auxiliary control panel by what
switch?
1.
A manual override switch
2.
The defeat interlock switch
3.
The portable control box
suspend switch
4.
A rotary type switch
4-9.
In the event of an electrical power
failure, how may the Mk 7 JBDs be
raised or lowered?
1.
By the auxiliary control panel
2.
By the portable control box
group UP-DOWN toggle switch
3.
By the manual override on the
four-way control valves
4.
By a tow tractor and cable
4-10.
When it is necessary to remove a
component from the hydraulic
system, you should cap or plug the
open lines to prevent foreign
matter contamination.
1.
True
2.
False
4-11.
Which of the following actions can
you take to isolate portions of the
JBD hydraulic system?
1.
Close the shutoff valve between
the filter and the main
hydraulic pumps
2.
Close the four-way valve
manifold shutoff valves
3.
Close the hydraulic cylinder
isolation valves
4.
By doing any of the above, as
appropriate
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