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