What are the symptoms of the leaky valves in a refrigeration compressor?
1. Noisy compressor
2. Bubbles in sight glass
3. Motor starts and stops rapidly
4. Compressor operating at low discharge pressure
5. Compressor operating at high suction pressure
a) 3,4,5
b) 1,3,5
c) 1,2,4
d) 1,4,5
e) 2,3,5
Answer: D