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Q.1) What are the main physical sections that make up a fired heater
Q.2) High pressure in the fuel line causes which of the following?
Q.3) If you notice that the flames are impinging (in contact with) the tubes, you should do as follows:
Q.4)The heater keeps tripping when you are trying to ignite the pilots and purging the heater is taking up much of the time before you can try to re-ignite. Which of the following should you do:
Q.5) Which of the following instruments is responsible for monitoring the Pilot flame
Q.6) Which of the following is responsible for monitoring the Main Flame
Q.7) One of your senior colleague who was very experienced with the heater, advise you to stay away from the heater if the arch pressure alarm was active. Why is this good advice?
Q.8) One of your colleagues noticed that when observing the flames through an observation door, he felt his hand being pulled into the heater. Why did this happen?
Q.9) A senior colleague in charge of the downstream distillation unit has complained that operation is unstable because the heater keeps tripping on high tube temperature. Why is it necessary to monitor tube temperature?
Q.10) Your fuel lines have both a Pressure and Flow Transmitter. During start up you keep tripping on High Pressure, but your Flow Transmitter doesn’t trip on High Flow. Which of the following cannot be true: