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Exam (elaborations)

MK1 SWE – 228 Verified Questions and Answers for Coast Guard Machinery Technician Exam

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This document provides a thoroughly verified and extensive set of 228 study questions and answers for the MK1 (Machinery Technician First Class) Servicewide Exam. It covers a wide range of topics including hydraulic systems, fuel management, trailer specs, HVAC, electrical systems, AC&R units, maintenance procedures, and Coast Guard operations. A comprehensive prep guide for advancing within the Coast Guard’s engineering division.

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MKC SWE
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Uploaded on
June 30, 2025
Number of pages
28
Written in
2024/2025
Type
Exam (elaborations)
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Questions & answers

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MK1 SWE |228 questions with verified answers
A 10 psi rise in a A/C system after evacuation is an indication of
Ans✓✓✓ Leak


A filter with a beta 5= 10 means that the element will be removed by
what percentage of air cleaning particles Ans✓✓✓ 90%


A part of the water hose should be labeled every Ans✓✓✓ 10 feet
(NSTM 533-2.1.3)


A thrust bearing support for what type of movement Ans✓✓✓ Axial
NSTM503


A thrust bearing supports what type of movement Ans✓✓✓ Axial


After I oil filter is changed or additional oil has been put into the system
how many hours before the test sample Ans✓✓✓ 25 hours


And what wore to the cutter Jepson capture the first prize Ans✓✓✓
War of 1812


Antifreeze should be used on Ans✓✓✓ All boats less than or equal to
65 feet in length all engines that utilize keel coolers

,At a modernized unit where is your boat inspection report record
Ans✓✓✓ Almis


At what r p.m. does the VTEC on a Honda 150 switch from the lower
speed cam to the high-speed cam Ans✓✓✓ 4300+


Before use subject temporary hoses to the shop hydraulic test pressure of
at least Ans✓✓✓ 110%


Cylinder liners in a diesel engine are commonly constructed from
Ans✓✓✓ Close grain cast iron


Drawings under SWBS # 101 pertains to what Ans✓✓✓ Structural
drawings


For machinery spaces cool outside air is directed directly to Ans✓✓✓
Watch stations


For machinery spaces fresh air is ducted to where Ans✓✓✓ Watch
stations


Hi speed air is used in all shipboard ventilation systems however the
maximum airspeed through the dark is not to make steed how many feet
per minute Ans✓✓✓ 3,500

, How do you cook a batteries in series Ans✓✓✓ Positive to negative
and negative to positive


How do you hook up anammeter Ans✓✓✓ In series


How does a rise in RO input water temperature effect the output rate
Ans✓✓✓ Output rate increases


How is a 10 measured in a spectro metric oil analysis Ans✓✓✓ PPM


How long can you store a dry cell battery under proper conditions
Ans✓✓✓ 2 years


How long can you store a dry cell battery under proper conditions
Ans✓✓✓ 2 years


How long does a 400 amp hr battery last Ans✓✓✓ 20 hours


How long will an auxiliary boiler have to be secured before doing blow
downs Ans✓✓✓ 2 hours


How many bags do you use to pack a P6 pump Ans✓✓✓ 2


How many days "ADT" are reservist allowed a year Ans✓✓✓ 12

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