question_answer

A pressure gauge on discharge side of a refrigerant compressor reads too high. The reason could be:

1. Lack cooling water

2. Water temperature being high

3. Dirty condenser surface

4. Refrigerant temperature being too high

Of these reasons:

A) 1, 2 and 4 are valid        

B) 1, 2 and 3 are valid

C) 2, 3 and 4 are valid 

D) 1, 2 and 4 are valid.