01
An engine starts readily and runs perfectly at cruising RPM for 20 minutes before losing power and stopping cleanly. After waiting five minutes, it restarts and repeats the cycle. Which of the following is the most probable cause?
examiner level
Topic
Marine Engine Theory (AEC2): Diagnostic Procedures revision questions
7 Marine Engine Theory (AEC2): Diagnostic Procedures questions sit in the Amidships bank, each written in plain English and explained rather than just marked. This page shows a sample you can work through right now. The topic appears in AEC Marine Engine.
- Questions in the bank
- 7Questions in the bank
- Subtopics
- 1Subtopic breakdowns
- Exam levels
- 1Exam levels covered
Sample questions
Answer in your head first, then reveal. If the explanation surprises you, that is the topic to drill.
02
An engine produces dense black smoke when operating under significant load. This indicates incomplete combustion. Which of these faults provides the most direct cause for this specific symptom?
examiner level
03
A four stroke diesel engine emits a consistent blue-tinged smoke from its exhaust, which is more noticeable when accelerating. What is the definitive cause?
examiner level
How this topic is examined
The bank splits Marine Engine Theory (AEC2): Diagnostic Procedures across 0 recall questions, 0 applied questions and 0 harder judgement questions. Recall gets you the marks you cannot afford to drop; the applied and judgement questions are where candidates lose the exam. Work the recall until it is automatic, then spend your time on the rest.
Practise this properly
Reading is not revision. Answer questions, get them wrong, read the explanation and meet them again. Amidships tracks readiness topic by topic so you know where you stand.