Engine Department Competence

RT-flex Series

The quiz covers engine control systems, common rail components, operating parameters, maintenance, turbocharger operation, fuel injection, safety systems, and key engine performance values. Designed for marine engineers who want to evaluate and improve their RT-flex expertise.

Questions 15

Time Limit 9 min

Language English

Sample Questions

Here are some example questions from this quiz. Download the GYRO app to take the full test.

Question 1

What does "cat fines" mean?

A Al + Si (Aluminium and Silicon).

B Carbon deposits.

C Soot residues.

D Fuel additives.

E Lubricating oil additives.

Question 2

What is the maximum permissible difference between two CAS sensors that will cause the engine to stop?When the difference between the two sensors reaches:

A 5°.

B 2°.

C 2.5°.

D 4.0°.

E 5.5°.

Question 3

How many FCMs are installed on the RT-flex engine?

A One FCM-20 per cylinder, installed at the front inside the rail unit.

B One FCM-20 for every two cylinders.

C Only on cylinder No. 1.

D Only on the last cylinder.

E Only in the Engine Control Room.

Question 4

What are the causes of turbocharger surging?

A All of the below.

B Rapid load changes.

C Engine imbalance.

D Faulty injectors.

E Clogged air filters.

Question 5

What is the recommended cat fines (Al + Si) content after fuel treatment and before entering the engine?

A 5 - 10 ppm.

B 20 - 40 ppm.

C 40 - 60 ppm.

D 60 - 80 ppm.

E 80 - 100 ppm.

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