CD0485. Introduction to four-stroke diesel engines

Choose a question set and start learning or take an exam.

CD0485. Introduction to four-stroke diesel engines
30 questions
Search

About this collection

The Seagull CBT bank is organised into modules covering safety, shipboard operations, maintenance and other topics. Original module names and codes are retained to help you find the topic you need.

“Seagull CBT — CD0485. Introduction to four-stroke diesel engines” contains 30 questions across 1 collection.

Learning

Learning mode has no timer. After answering, you see feedback and the correct options. You can return to a question and repeat a topic.

Exam

A practice exam lasts up to 60 minutes and includes up to 50 questions from the selected collection. Correct answers and results appear after completion.

Sample questions and answers

These examples come from the published collection. Choose Learning to study questions in sequence, or Exam to check your knowledge.

To provide a good scavenging process, what should the scavenge air pressure be? Select the ONE correct answer.

One correct answer

Higher than the pressure in the cylinder when the inlet valves open✓ Correct answer
Lower than the pressure in the cylinder when the inlet valves open
Higher than the compression pressure
Equal to the pressure in the cylinder

For the type of engine described in this module, what is the maximum fuel pump pressure during fuel injection? Select the ONE correct answer.

One correct answer

Between 500 and 1500 bar✓ Correct answer
Between 5 and 15 bar
Between 50 and 100 bar
Between 100 and 200 bar

How is the quantity of fuel injected controlled? Select the ONE correct answer.

One correct answer

By turning the plunger✓ Correct answer
By turning the barrel
By turning the cam
By changing the length of the push rod

What is the typical temperature of the exhaust gases at the end of the power stroke? Select the ONE correct answer.

One correct answer

Between 300 °C and 500 °C
Between 500 °C and 700 °C✓ Correct answer
Between 200 °C and 300 °C
Between 100 °C and 200 °C

What are the start and end points for the compression stroke? Select the ONE correct answer.

One correct answer

From one Bottom Dead Centre to the next Top Dead Centre✓ Correct answer
From one Top Dead Centre to the next Bottom Dead Centre
From one Top Dead Centre to the next Top Dead Centre
From one Bottom Dead Centre to the next Bottom Dead Centre

Before you start

Do I need to register to start?

Guest access lasts 23 minutes. Free registration lets you continue without limits, save progress and review mistakes in your account.

What language are the questions in?

Questions and answer options retain the language of the original bank. You can change the interface language separately.

Can I use my result as an official document?

No. This is independent practice. A result does not replace an examination, certificate or knowledge check by an authorised organisation.