2M0X3 CDC VOL. 3
What is the difference between how LF commercial power contactors K1 (WING 1) and C1TS (WING 3 or 5) are repositioned
K1 requires a constant voltage supply; C1TS requires only a brief pulse
Which component in the control panel of sump pump system SP 102 houses the contacts that allow power to pass through to energize the sump pump
Motor starter M1
How is power supplied to the control panel of sump pump system SP 102
One phase of power from launcher distribution panel B (LDB)
The DEU frequency test receptacle enables a technician to
check the frequency output of the generator
The purpose of the crankshaft in an internal combustion engine is to
convert reciprocating (up and down) motion into rotary motion
The purpose of a DEU generator is to
convert the rotary motion of the crankshaft into electricity
The purpose of the DEU starting batter charger's float charge is to
Compensate for small day to day voltage losses
All diesel engines require air, fuel, and heat (ignition) to
begin the combustion process and continue to operate
In sump pump system SP 102 which malfunction could cause a servicable sump pump to fail to pump water out of the sump pit
Discharge line outlet is crushed closed
Hydraulic systems operate on which principle
Force is distributed equally throughout a confined body of liquid
Which is the configuration and location of the MPP batteries on a wing 1 LOF
Four 6 volt batteries wired in series outside the ASU
Why are pneumatic systems able to provide force faster than hydraulic systems
Gases are less resistant to flow than fluids
Which is a function of wings 3 and 5 DEU engine cranking and monitor and alarm panel
House the electronic speed switch and the governor controller
WHat is the purpose of the junction box in the LCC at a MAF
House three metal oxide varistors (MOV) that absorb large power spikes
In the wing 3 or 5 sump pump system SP 102 which componet in the control panel has likely malfunctioned if the co8il of sump pump motor starter M1 is not receiving power
Relay R1
Which are the two major components of a generator
Rotor and stator
In sump pump system SP 102 which action should be taken before condemning a sump pump motor that has seized
Attempt to run the sump pump in the reverse direction
What actions occur when the LER floor sensor probes detects water on the lower LER floor
A GMR- 29 fault alarm reports to the LCC
How does the MPP issue commands to connect or disconnect primary power
A brief one time pulse
Which malfunction in sump pump system SP 102 would display a similar resistance reading to an open motor winding even if the sump pump is serviceable
A broken wire somewhere between motor starter M1 and the sump pump
Which are the designations for the commercial and standby power contactors at Wings 3 or 5 LF's
C1TS and C2TS
In the Wing 3 or 5 sump pump system SP 102 which actions occurs when water touches the LER floor sensor probe
Contacts inside of relayR4 open to initiate a ground maintenance (GMR) 29 fault alarm
What are two types of electrical modes of failure that can occur in sump pump system SP 102
Open motor winding and shorted motor winding
What are the major power distribution panels on a LF and where are they located
Panel LDA in the support building and launcher distribution panel B (LDB) in the LER
Which technique can detect and easily solve many problems with sump pump system SP 102
Perform the operational checkout
Once an engine is running under its own power the starter motor
Plunger retracts
What occurs during an internal combustion engines compression stroke
Pressure and temperature of the intake air increase as the piston moves upward
What is the purpose of the MAF source region electromagnetic pulse (SREMP) electrical surge arrester (ESA) panel
Protects from large surges of power caused by lightning strikes or or the low altitude burst of a nuclear weapon
What is the purpose of the 10,000 ohm resistor on relay R3 in the control panel of sump pump system SP 102
Reduces 120 volts alternating current (VAC) to 13 VAC
The TEST pushbutton on the MPP
Starts the DEU and operates the site on DEU power
The minuteman power processor MPP ultimately shuts down the DEU at all wings by
Starving the engine of fuel
Which statement describes how a hydraulic system multiplies force
The area of the input piston must be smaller than the area of the output piston
In the Wing 1 sump pump system SP 102 which condition would cause all four probes to appear as if they were shorted together even though the sump pit is empty
The control box on top of the probe assembly is full of water
In sump pump system SP 102 which condition would cause the water level in the sump pit to continue to rise past the high water level float switch and continue toward the high water level alarm probe
The high water level float switch is stuck in the open position
Which condition would cause sump pump system SP 102 motor starter M1 to receive three phases of 120 VAC but only send out two phases of 120 VAC to the sump pump
The power contactors of M1 are dirty corroded or malfunctioning
What prevents the sump pump of sump pump system SP 103 from starting if the sump pit is full of fuel or oil
The stop and start float witches are differentiating; they only float in water
What is the purpose of the buck boost transformer at a MAF
To increase line voltage by 5 to 6 volts
At wings 3 or 5 which state will a correctly functioning sump pump system SP 102 be in on a day to day basis
Water level will be below the sump pit low water level float switch and not touching the LER floor sensor probe
What must occur in a properlu functioning Wing 3 and 5 sump pump system SP 102 before the sump pump will begin to operate
Water must reach the high water level float switch
Both commercial and standby power sources cannot be connected to the LF at the same time because
a set of auxiliary contacst open to prevent power from flowing to the opposite contactor
An indication all three motor winding of sump pump system SP 102 are serviceable is that resistance will not be excessively high or excessively low but
all three readings will be approximately the same value
An immersion heater is installed on a diesel engine to
allow a diesel engine to start and develop rated power faster in very cold conditions
The DEU oil lewvel regulator operates by
allowing oil to flow from the lubricating oil tank in to the engine crankcase
The MAF power distribution system
distributes commercial AC power to the electrical equipment at the MAF
What occurs during an internal combustion engines exhaust stroke
exhaust gasses are expelled from the cylinder as the piston moves upward
A function of the Wing 1 DEU interface panel is to
house the major components that act as an interface between the DEU and the site
The purpose of the DEU engine governor system is to
maintain a constant engine RPM regardless of engine load
A major purpose of the minuteman power processor MPP is to
monitor the quality of commercial and standby power
The purpose of the lobes on a camshaft in an internal combustion engine is to
press the valve open at specific times in the engines cycle
The purpose of the fuel injection pump on a diesel engine is to
pressurize the fuel being sent to the engines injectors
How does a pneumatic system perform work
pressurized gas in a confined are applies force to an object
The purpose of a turbocharger is to
provide compressed air for the engines cylinders
Sump pump system SP 102 is responsible for removing wastewater from the
sump pit at the bottom of the launch tube
The purpose of the LF and MAF underground fuel storage tank is to
supply a large reserve of fuel so that the diesel electric unit (DEU) can run for as long as possible
It is necessary to perform the sump pump system SP 102 functional checkout after discovering and repairing a fault in the system to ensure that
the system is fully functional and that there are no other faults
The purpose of the piston in an internal combustion engine is to
transfer the downward force of combustion to the connecting rod
The purpose of generators voltage regulator is to provide the ability to modify the output
voltage of the generator
The LF water diverter system prevents
water from running under the launcher closure lid and down on top of the missile
In sump pump system SP 102 if the holding circuit for relay R1 (established once the sump pump begins to run) is not maintained then the sump pump
will stop running immediately after the water level in the sump pit has dropped below the high water level float switch
All diesel electric unit (DEU) you will work on as a 2M0X3 technician are started
with an electric starter powered by a battery or set of batteries
