Question 122Refrigeration & AC - QMED

The correct answer is A) 100%. In a multi-box refrigeration system with a compressor designed to have six out of eight cylinders controllable for variable load conditions, when all the reefer boxes are currently feeding, the compressor will utilize all six of its controllable cylinders, which is 100% of the total number of active compressor cylinders. The other answer choices are incorrect because: B) 50% would only be true if half of the controllable cylinders were being used. C) 25% would be incorrect as it would represent only a quarter of the total cylinders being used. D) 0% would be impossible, as the compressor would need to utilize at least some of its cylinders to meet the cooling demand when all the reefer boxes are active.