UPDATED EXAM QUESTIONS AND CORRECT
SOLUTIONS|A+ GRADED UPDATED
2025|100% GUARANTEED
PASS!!|NEWEST VERSION||
What happens when there is oil in the bilges - ANSWER ✓ Vapors are generated
that maybe ignited by a spark or a flame
What must be incinerated aboard ship - ANSWER ✓ Sewage
What are some methods used to minimize oil contamination of bilge water on
ships? - ANSWER ✓ Prohibiting the use of educators to dewater bilges containing
oily waste for Engineering dewatering
What are the three part designation sequence to identify valves - ANSWER ✓ 1.
The shaft number or plant number, 2. The system designation valve number, 3. The
individual valve number
With an increase in diaphragm chamber pressure, does the air pilot air control
valve open or close - ANSWER ✓ Open the diaphragm overcomes air pilots spring
pressure, forcing the valve stem down, and opening the air control valve
What is a stud (in the context of threaded fasteners)? - ANSWER ✓ A fastener
that has external threads on both ends or is completely threaded from end to end on
its shank or body
What is a bolt - ANSWER ✓ A fastener with external threads that has a head on
one and a body or shank that is either fully or partly threaded
lock washers - ANSWER ✓ Used to prevent threaded fasteners from loosening
Safety wiring - ANSWER ✓ Used to prevent the nut, bolt, screw, or any other
threaded part from backing off
, Cotter Keys - ANSWER ✓ Are key shaped pins that are insisted through the pre-
drilled hole on the stud and aligned with the slots on the top edge castellated nut to
keep the fastener from turning
Self locking Nuts - ANSWER ✓ 1. Those that generate pressure between the
threads of the nit and bolt in a way that permits frequent removal
2. those that cause some thread deformation
Thread inserts - ANSWER ✓ Used for the purposes of restoring damaged threads
in castings or forgings
2 lines - ANSWER ✓ Indicates Grade 3
3 Lines - ANSWER ✓ Indicate grade 5
4 lines - ANSWER ✓ Indicate grade 6
5 lines - ANSWER ✓ Indicate grade 7
6 lines - ANSWER ✓ Indicate grade 8
Threaded Fastener require what type of inspection - ANSWER ✓ Periodic
Current - ANSWER ✓
How long are engineering legal records retained onboard for? - ANSWER ✓ 3
years
How long are operational logs maintained for? - ANSWER ✓ 6 months
what is the record where all speed changes for each individual shaft are recorded?
- ANSWER ✓ bell book
what log is maintained in dc central - ANSWER ✓ damage control closure log
What log records day to day events in the engineering plant - ANSWER ✓ the
engineering log