Which of the following is a disadvantage of ejectors?
A. They require a large amount of energy.
B. They are hard to install.
C. They are expensive.
D. They are hard to maintain.
A. Correct. The disadvantages of ejectors are that a considerable amount of energy (for example, high-pressure steam) is consumed, and the performance of the ejector is very sensitive to steam supply conditions (such as steam pressure and steam temperature).
B. Incorrect. The advantage of ejectors is that they are easy to install and maintain.
C. Incorrect. The disadvantages of ejectors are that a considerable amount of energy (for example, high-pressure steam) is consumed, and the performance of the ejector is very sensitive to steam supply conditions (such as steam pressure and steam temperature).
D. Incorrect. The advantage of ejectors is that they are easy to install and maintain.
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