Question 47General Subjects - Assistant Engineer

The correct answer is D) The compressor would have longer running periods at lower displacement capacity between operating cycles. If the cylinder suction or discharge valves fail to properly seat, it will allow air to leak back from the discharge side to the suction side of the compressor. This will result in a lower overall displacement capacity of the compressor, as some of the air being compressed will leak back instead of being fully discharged. With a lower displacement capacity, the compressor will need to run for a longer period between operating cycles to achieve the desired air output, resulting in longer running periods at lower displacement capacity. The other answer choices are incorrect because they do not accurately describe the impact of failed compressor valves on the compressor's operating cycles and displacement capacity.