Download MK1 SWE 228 CERTIFICATION EVALUATION GUIDE 2026 FULL SOLUTION and more Exams Mechanics of Materials in PDF only on Docsity!
MK1 SWE 228 CERTIFICATION EVALUATION
GUIDE 2026 FULL SOLUTION
โ Repair party leadership permission is required to start using a SCBA, if the air cylinder pressure is below what PSIG? Answer: 4, โ What PSIG should a SCBA tank have? How long does it last? Answer: 4,500 PSIG for 45 minutes โ SCBA heads up display segment lights for remaining air percentages Answer: 1. (4) steady green LED's 20 sec = 75 %
- (3) steady green LED's 20 sec = 74 - 50%
- (2) flashing yellow LED's 30 sec= 49 - 36%
- (1) continuously flashing red LED = 35 - 0 % โ SCBA low pressure warning device alarms when there is approximately what percentage of air remaining? Answer: 33 - 37% โ When an SCBA mask fails to send air, you should use what valve to get air back into the mask? Answer: Red Bypass Valve (provides 125 liters of air per minute to face piece)
โ What are the (3) priorities of a CG-22? Answer: 1. Routine
- Non-Routine
- Urgent โ When submitting a CG-22, if life is at risk or safety issues are involved, what priority shall you select? Answer: Urgent- Safety Related โ What does TCTO stand for? Answer: Time Compliance Technical Order โ What does CAGE stand for? Answer: Commercial and Government Entity โ What does NIIN stand for and how many digits? Answer: National Item Identification Number (9) Digits First 2 digits are country (I.e. 00/001 is USA) โ NSN stands for and how many digits? Answer: National Stock Number (13) Digits Includes both FSC (Federal Supply Classification) and NIIN
- Written Appeal - to CO
- Letter of Appeal - must contain specific competencies in dispute & supporting info that meets or exceeds standards 4.Original signed EER is first document attached to letter of appeal as second. โ During an EER written appeal process, the CO cannot do what? Answer: Lower any mark โ The CO has how many days to submit the EER appeal to the appeal authority, if the member does not agree? Answer: 15 calendar days โ What component in a compressed air system helps divert pressure in the event of pressure regulator failure? Answer: Pressure reducing manifolds โ Medium pressure air compressors deliver compressed air at what PSIG discharges? Answer: 151 - 1,000 PSIG โ Low pressure air compressors include a variety of oil free compressors, delivering compressed air at what PSIG discharges? Answer: 80 - 150 PSIG
โ What is PSIG is considered high pressure compressed air? Answer: Above 1,000 PSIG โ For convenience, the P-100 pump has how many oil dipsticks? Answer: (2) one on each side of the engine โ Tighten the P-100 pump packing screw using a 9/16" wrench until the drip rate is? Answer: 5 - 60 drops per minute โ SWE points for awards and EER can be awarded until what date? Answer: Service Wide Eligibility Date (SED) โ What happens to O-rings when exposed to excessive heat? Answer: The O-rings will harden and have a lack of resilience, crack when flexed, and take a permanent set (difficult to remove). โ Most common type of pump in the Coast Guard? Answer: Gear Type Pump โ In hydraulics, which type of valve can be used for stopping or throttling the flow of fluid? Answer: Needle Valve โ In hydraulics, the most common type of pressure control valve is? Answer: Relief Valve
โ When assembling gate valves, the gate shall be in half open position before the bonnet bolts are tightened. This ensures? Answer: The proper alignment of the guides in the valve bonnet and valve body. โ Which Honda 225 outboard engine valve adjusts the amount of the by-pass air to the intake manifold to maintain the optimum idle speed? Answer: Idler Air Control (IAC) Valve โ What tool is used to measure the resistance in cable insulation or motor and transformer windings? Answer: Megger โ What component in an air compressor reduces pressure fluctuations and build up within the oil crankcase? Answer: Crankcase Breather โ How is the P-100 pump cooled? Answer: Forced air generated from the flywheel fan โ What is the P-100 pump engine horse power? Answer: 10 HP Yanmar โ Incompatible elastomeric materials in phosphate ester-based hydraulic systems, such as butyl and EPR seals can cause excessive _____________ and premature failure of seals. Answer: Swelling
โ When reconditioning hydraulic actuators it is recommended to use ______________ when removing rust, corrosion pitting, nicks, scratches. Answer: Crocus Cloth โ To remove burrs from hydraulic piston rods, NSTM 556 recommends using a __________ _____________. Answer: Fine whet-stone โ 225 BF Honda spark plugs are coated with what material for insulation? Answer: Iridium Alloy โ On air systems, to determine the operability, a hydrostatic pressure test is conducted at _______ percent of the designed pressure. However, ships built before 1969, the test pressure shall NOT exceed the value on the system drawing or ______ percent of nominal operating pressure. Answer: 135, 150 โ Flash point of JP-5? Answer: 140 degrees โ (4) basic types of hydraulic pumps: Answer: 1. Vane
- Piston
- Gear
- Screw
โ What type of compressed air filters are rectangular or cylindrical and packed with fine strands of wire coated with oil, which traps the dust? Answer: Viscous Impingement โ
