2019 Flashcards
In a 2 stroke diesel engine, how many revolutions does the crankshaft spin during one power stroke?
1
Who can authorize additional work or terminate contracts for dry dock?
KO
How is air that is delivered to a room measured?
CFM (Cubic Feet Per Minute)
How much air can be in a receiver?
600 psi
OWS works off of what two principles?
Gravity separation and coalescer
Two windings in a motor coming into contact?
Shorted winding
What form for booking someone?
CG4910
What is the shelf life of a bromine cartridge?
24 Months
What is the flash point of F76 and JP5?
140f
When do you apply an out of orange calibration tag to a gauge?
If deviation is small and consistent.
After how many hours must you drain the air receiver?
200 hours
What class hitch must the RBS trailer be rated to?
V
Most common hydraulic oil used in the USCG?
Petroleum based
P100 full weight?
164 LBS
P6 prime mover?
Single cylinder four cycle gasoline
PDE Award point, EER, Sea and surf time start date?
SED (SWE Eligibility Date)
PDE time in rating and service date?
TED (Terminal Eligibility date)
Class of fire for liquids?
Class B
Class of fire for metal?
Class D
The ___ permits compressor staring at reduced load?
Unloaded
Color of potable water hose?
Dark blue
Where is the triple guard grease used on a Honda 225 drive shaft?
Drive shaft spline
A Potable water hose should be labeled every feet?
10
The maximum pressure on air receiver is capable of holding is ?
600PSI
When is a staff symbols require in the To line of a memo?
Area commanders, district commanders, commander of maintenance and logistics commands, the academy, or Commandant.
What 2 uniforms are used year round for uniform of the day?
TB and ODU
Heat transfer by____occurs when energy is transmitted by direct contact between molecules of a single body or between molecules of two or more bodies in physical contact with each other.
Conduction
Heat transfer will occur between two materials of different temperature, the heat flowing from the___temperature body to the___temperature body.
High, low
What tool do you use to measure bearing shell clearance?
Micrometer
A minimum required flashpoint for shipboard use of___cannot be safely stored on board.
140F
PEACE model does what?
Elements mission risk level within safe limits.
Removes air impurities such as dust, fumes, vapor, and smoke?
Filter
Sewage can be discharge when greater than ___ miles from land?
3
Sole source justification is submitted to who?
KO
Readings over 100PPM of chloride require you to do what with coolant?
Drain system, inspection for R/W leaks, fill with water run for 30 min, test, drain repeat until sample is below 40 ppm, take another sample after 24 hours.
Excessive vibration of an engine can cause what on the water side of the cylinder liners?
Cavitation corrosion/erosion
Test coolant within how many hours after conducting a coolant change or adding chemical?
24hrs
R/O dump is indicated by what color light on monitor?
Red
How long should you run the winterizing compound through the 87’ R/O unit to ensure it gets into all the components?
15 mins
How long should you run an R/O in flush mode?
30 min following winterization, otherwise 20 mins of 2 min auto flush
SFLC approval is required for any fuels accepted below what flashpoint?
125F TS 540 cutter and boat fuel PG 11
What is normally used to prime a fuel oil purifier?
Automatically reprimed with water before fuel flow is reestablished
Cold Alaska fuel type authorized for what months?
15 October -15April
Fuel oil purifier operates off of what principal?
Centrifugal
Fuel oil purifier separates fluids by manipulating their what?
Specific gravity
What monitors oil in the oils separator?
Oil content monitor
Prior to changing a filter, what should you do to a system before hand?
Pull a sample
Two types of clutches that use air, Aeroquip and ?
Witchita/Eaton disc type and Eaton Airflen drum type
Phenomenon of slow speed with new shaft bearing?
Stick-slip
What is installed inline that removes water in a air system?
Dehydrator
What prevents from discharging any type of oil within 12NM?
Clean water Act
Engineering change request (ECR) form?
CG22
Aeronautical publication change form?
CG22
Machinery logs must be kept on board for how long?
Destroy 3 years after transcribing into Hull History and Machinery History. CIM 5212.12 pg 143
Tag out logs are required by what two departments?
Engineering and operation
FRC’s use what type of refrigerant?
R134A
-40C is what in F?
-40F
To get 100GPM at 20 foot suction, how much PSI?
83 PSI
Firefinder uses what type of batteries?
Two AAbatteries
How do you increase volts?
Volts are added when wired in series
What is used to measure the insulation of a wire?
Megohmeter
What is the first step to an operation troubleshooting electrical components?
is a good visual inspection. Check the connections for poor soldering, loose connections, or broken wires. The plunger should be checked for cleanliness, binding, mechanical failure, and improper alignment.
Convert pressure into an electrical signal?
Pressure sensor
What installed in-line to protect electrical components?
Fuse
Hertz is measured by what symbol of?
HZ
What is the fuse rated for the 225 charging system?
150 amp
What is the trim components of the engine comprised of?
Motor/pump
What lower unit oil is used?
80/90
Center tread on a tire is caused by what?
Over inflation
What is the brake fluid that is used in the CG?
DOT-3
How far in the great lakes must you be from land to discharge sewage?
No discharge of sewage
What type of oil is used for the jet drive?
DELVAC 1330 super 15w-40
How is a stem valve installed?
Up
What is the single most important factor when deciding hydraulic fluid?
Viscosity
Allowable hydraulic leak limit?
10m/l
What force a hydraulic cylinder provide?
Linear motion
Wear seen in the cylinder head at 90 degrees of this component?
90 degrees of the crankshaft
Piston rings purpose are to do what this, lubricate and ?
transfer heat from the piston to the liner
Piston ring open gaps reduce the before and after pressure by what?
½
What temperature should you maintain during after and overhaul in the break-in period?
160-195F
Accessory after the fact?
Article 78
What uniform is authorized the use of two straps of a backpack?
ODU
Binge drinking is?
Drinking until you get drunk
Definition of binge drinking is?
4 drinks 2 hours for women, 5 drinks 2 hours for men
P-229 has how many safeties?
3
How many steps to trigger control are there?
4
Stress is defined as?
Everyday wear and tear on your body as you respond to people, places, things in life
AFFF lasts for how long if full charged?
55-65 sec
Supply purchase price?
$3000
CG-4910 has members what listed?
Education
How do you access CGPASS?
Direct website link
What type of strainer must you completely isolate the system to service?
Simplex
TA is authorized after how many days for long term unit?
180 Days
Pricing for MGIB-AD is based on what?
Credits you are taking
How many times periods for U/W logs?
6
What type of flexible couple is used in between shafts?
Vulkan EZ and Rato S couplings
J/W testing test for Alkalinity and____?
Chloride