What condensing unit is needed on an 8’x 30’x 8’ freezer? Note: Use the attached tables for this question and for the next two questions.
a. MT-200 b. LT- 200 c. LT-300 d. LT-400
d. LT-400
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Which of the following CMU shapes has a rounded corner?
A) Unit with projecting face shells B) Bullnose unit C) Lintel D) Sash unit E) Scored unit
Technician A says that batteries can be cleaned with a baking soda and water solution. Technician B says that a baking soda and water solution may be used if a battery failed the battery case test. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
If the low side test pressure is not know, the maximum pressure that should be used for leak testing an R-22 refrigeration system with hermetic compressor is:
A) 150 psig. B) 300 psig. C) 200 psig. D) 250 psig.
What material are electric heater coils often made from?
A) Steel and chrome alloy wire B) Copper and brass C) Nickel-chrome alloy wire D) Silicon carbide