Finned convectors should be kept free of:
a. Air
b. Steam
c. Corrosion
d. Dust
e. Scale
Answer: D
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Power Engineering Chapter 97
- If the water level falls too low during operation of a steam heating boiler the operator should
- The piping and heating units of a steam heating system must be so arranged that
- The two pipe gravity return steam heating system, now obsolete, had the disadvantage that during startup, some steam could pass through a radiator without condensing and could enter other radiators via the return main, thus trapping:
- The ______________ system overcomes the difficulty of returning condensate back to the boiler due to inefficient static head.
- Slow or insufficient heat in one or more rooms in a steam, heated building can be caused by a faulty:
- In the two, pipe variable vacuum steam heating system, the steam temperature can be varied from:
- When starting up a steam heating boiler, it should be filled to:
- In a gravity return system, the boiler should be placed:
- After a steam heating system has been operating for some time, you notice that some parts of the heating system are still cold. Which one of the following could be the cause of this?
- When the return main of a gravity return steam heating system is located below the level of the water line in the boiler, it is called:
- The piping and heating units of a steam heating system must be so arranged that the:
- When a single main is used to carry both the steam supply from the boiler to the radiators and the steam condensate from the radiators back to the boiler, the system is called a one pipe:
- In all systems, the horizontal steam supply pipes between boiler and heating units are called the:
- All supply and drain lines of a steam heating system must be pitched to:
- In the case of radiators and convectors, the main sources of trouble are the:
- Slow or insufficient heat throughout a building heated by steam can be caused by:
- Which of the following would you NOT find in a steam heating system?
- The Hartford Loop prevents the water in the boiler from:
- A pressure balancing arrangement that prevents the boiler pressure from forcing boiler water into the return lines is called a: