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ADOC JOSMRC | Study Guide & Practice Questions

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ADOC JOSMRC | Study Guide & Practice Questions

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ADOC JOSMRC
Calibration Rejected Sticker - ANS-Black letters
red background

Out of calibration - ANS-Black letters
orange background

What is considered a critical gauge? - ANS-Parameter being monitored is essential for
the safe operation of ship system

What are the six core principles of Sound Shipboard Operating Principles? -
ANS-Formality
Forceful backup
Procedural compliance
Integrity
Questioning attitude
Level of knowledge

When can you deviate from EOSS? - ANS-Damage to equipment
Danger to personnel
Configuration mismatch
FBR > 6 months
TSO < 6 months
Adherence to CLAD
RMD situation

What are the different types of EOSS FBR? - ANS-Routine
Urgent (Safety related)

When is single or double hearing protection required? - ANS-Single: 85-96 dB or 140
(impact)
Double: >96 dB or 165 (impact)

How often are hoist weight tested? - ANS-Every 4 years

Paint removal methods: - ANS-Abrasive Blasting
Electrically operated power tools




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Water jetting
Solvent and chemical cleaning

voltage - ANS-electromotive force or potential difference [V].

current - ANS-the flow of electrons [I or A]

resistance - ANS-electrical quantity that measures that reduces electric current through
it [R] ohms

Ohm's Law - ANS-voltage difference between 2 pts
E=I*R

Open Circuit - ANS-infinite resistance, zero current

short circuit - ANS-minimum resistance, max current

power - ANS-rate at which electrical energy is transferred by a circuit [P]

Types of Power - ANS-True: dissipated by load
Reactive: power absorbed & returned
Apparent: derivation of true & reactive

Power Factor - ANS-Ratio of real power to apparent power

Direct Current - ANS-unidirectional flow of electric charge.
Flows in one direction [DC]

Alternating Current - ANS-electric current in which flow of electric charge periodically
reverses [AC]

Frequency - ANS-# of cycles per sec [Hz]

Polarity - ANS-direction of current flow
neg -> pos

Conductors - ANS-ability of electrons to move from atom to atom (silver, gold, copper)

Insulator - ANS-electric current cannot move freely (wood, fiberglass, plastic, rubber)




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Capacitance - ANS-device to store electric charge [C]

Capacitor Safety - ANS-use shorting probe, discharge capacitors before work on equip,
measured in Farads

Inductance - ANS-passive 2 terminal electrical component which resists changes in
electric current [L],
measured in Henry

Requirements for AC
"Momma's Fried Chicken" - ANS-Motion (Rel)
Field (mag)
Conductor

3 parts of a Generator - ANS-Internal
Permanent Magnetic Alternator
Voltage Regulator

Internal parts of a generator - ANS-Stator
rotor
Poles
Alternator
Field Windings

Permanent Magnetic Alternator - ANS-120 VAC
excitation power to voltage regulator during initial start-up

Governer - ANS-convert electrical signal to mechanical motion, adjusts fuel to engine

Voltage Regulator - ANS-maintains 450 VAC generated volts adjusts DC voltage to rotor

Transformer theory - ANS-one step up & one step down
transfers AC power from one circuit

Piping - ANS-measured by inside diameter
>3/8"

Tubing - ANS-measured by outside diameter
<3/8"




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