To speed up refrigerant recovery:
A) Recover from only one side of the system at a time.
B) Use large-diameter, short-length hoses.
C) Keep the system as cool as possible.
D) Use small-diameter, long-length hoses.
B
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PROBLEM 3.135 A 1.25-m-long steel angle has an L127 ? 76 ? 6.4 cross section. From Appendix C we find that the thickness of the section is 6.4 mm and that its area is 1250 mm2. Knowing that ?all ? 60 MPa and that G ? 77.2 GPa, and ignoring the effect of stress concentrations, determine (a) the largest torque T that can be applied, (b) the corresponding angle of twist.
The forestry industry uses fertilizers most often to treat old growth stands that will produce valuable lumber
Indicate whether the statement is true or false
Technician A says that oxygen sensors can be tested using a test light or dwell meter, or a scan tool. Technician B says that conditions can occur that cause the oxygen sensor to be fooled and give a false lean or false rich signal to the PCM. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
What provisions should be made to prevent water from freezing during low temperature periods of operation for a hydronic heating system?
What will be an ideal response?