Refrigeration Test with Questions and Solutions

Refrigeration Test with Questions and Solutions If the power is shut off to a solenoid valve and it opens, what type of solenoid valve is it? Select one: a. a normally open solenoid valve b. a normally closed solenoid valve c. a thermal acting solenoid valve d. a direct acting solenoid valve ANSWER a normally open solenoid valve Which of the following best describes the operaiton of a single acting compressor? Select one: a none of the answers b. the refrigerant gas is compressed on only one side of the piston c. the piston speed can manually be controlled for better volumetric efficiency d. the refrigerant gas is compressed on one side of the piston and then the other ANSWER the refrigerant gas is compressed on only one side of the piston A refrigeration unit with a capacity of 788.000 Btu/hr. produces how man tons of refrigeration? Select one: a 50 tons b 75 tons c. 65 tons d. 90 tons ANSWER 65 tons