1. What will be the power if the PLAN for both 2-stroke and 4-stroke engine is same?
2. What is the indicator diagram?
3. What are the purpose of taking indicator diagram?
4. What are the types of indicator diagram?
5. What is indicated power? How to calculate power?
6. Steps to take indicator diagram?
7. Purpose of Power diagram, Out-of-phase diagram, Compression diagram, Light spring diagram?
8. When indicator diagram is taken?
9. What are the necessary precaution to avoid indicator malfunction?
10. What are the steps to be taken when compression pressure is low?

Automation - Instrumentation (Set 4)


Multiple Choice Questions


1. Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to ___________.




2. Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the ____________.




3. To test the operation of the flame failure switch of an operating automatically fired auxiliary boiler, you should ____________.




4. Electrically operated safety devices on auxiliary diesel engines function to stop the engine by ____________.




5. The programmed control system of an automatic auxiliary boiler will terminate the light off process during the prepurge period if air flow is not sensed and ______________.




6. On auxiliary boilers using individual flame scanners to monitor the main and pilot flames, the main flame scanner should be sighted to ______________.




7. Automatic combustion control systems for some auxiliary boilers are designed to cycle burners on in response to _______________.




8. If the flame of an automatically fired auxiliary boiler tends to move away from the burner tip when the firing rate is changed from low to high, you should ________________.




9. Which of the following conditions will cause only one of the burner solenoid valves to close on an automatically fired, two burner unit, auxiliary boiler?




10. While an auxiliary boiler is operating at design load, which of the following actions will occur if the automatic combustion control system detects a steam pressure drop?