Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
What is 3M |
Ship's maintenance, material, management. Manual- OPNAVINST 4790.4 |
|
|
What nstm is jacket water cooling systems in |
NSTM chpt 220 vol. 3 |
|
|
What two methods are used to check seating of piston rings |
Visual and operational parameters |
|
|
In what manual can you find whether a diesel engine runs with crankcase pressure or vacuum |
NAVSEA TECH MANUAL |
|
|
How often shall engine log readings be taken during run in or break in period |
Every 15 mins |
|
|
In a manometer what substance do you use? Mercury or water with dye |
Approved dye with water |
|
|
Three types of propellers |
Fixed pitch diameter Controllable reversible pitch Cycloidal |
|
|
NSTM chapter for propellers |
245 |
|
|
Do not operate warm engine for any length of time at... |
Less than 60% load |
|
|
NSTM chapter for electric power distribution sysytems |
320 |
|
|
Blue smoke |
1. Worn or stuck piston rings 2. Worn cylinder liners 3. Worn valve guides 4. Cracked pistons |
|
|
Black / Grey smoke |
1. Fuel incomplete, improper 2.high exhaust back pressure, restricted air 3. Turbocharger 4. Injectors 5. Engine overloaded, not balanced 6. Low compression |
|
|
White smoke |
1. Cold air intake 2. Light load 3. Air in fuel lines 4. Insufficient diesel fuel 5. Water in diesel 6. Low jacket water temp operation |
|
|
Liners will usually wear at the greatest rate in an area ___ degrees to the crankshaft and direction of piston thrust |
90 degrees |
|
|
Are the cylinder liners of fairbanks Morse honed or not during overhaul? |
Usually not honed |
|
|
What are the three parts to Pyro meter exhaust temp measuring sysytem |
Thermocouples Wiring Pyrometer |
|
|
Pyrometer electrical signal |
In millivolts |
|
|
What is the pressure drop difference between piston rings with open gaps |
1/2 the pressure above the ring |
|
|
NSTM chapter for propulsion bearings and seals |
244 |
|
|
Circumferential scratching and grooving in a precision bearing is caused by |
Dirt in lubricating oil |
|
|
What is the NSTM chapter for pumps |
503 |
|
|
What are three methods for installing flywheels |
1. Split hub flywheel 2. Tapered shaft and hub 3. Flange connections |
|
|
Two types of vibration dampners |
1. Viscous type - free, floating flywheel, silicone fluid 2. Gear type - hydraulic |
|
|
What kind of engine alignment shims are allowed |
Composition three, corrosion resistant steel milspec-s-22499, up to 0.050 inch thick |
|
|
Universal method for crankshaft deflection is |
Crankshaft deflection gage ( 1/1000 inch graduations) measures Web spreading or closing |
