?Explain the difference in charging a R-1234yf system compared to charging a R-134a system.
What will be an ideal response?
?Charging an R-1234yf refrigerant system is essentially the same as charging an R-134a system except that the system requires a leak test be performed during system charging. If a leak is detected the system will not continue with the recharge procedure.Also the use of bulk containers and a set of scales or other measuring devices is not an acceptable procedure for R-1234yf systems or for small volume refrigerant systems due to its lack of accuracy.??
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Of the five major risk control strategies discussed in this chapter, which is the preferred strategy when it can be applied? Give some examples of techniques used in this approach.
What will be an ideal response?
The ____________________ rule means working with only one hand while servicing the HV system so that in the event of an electric shock, the high voltage will not pass through your body.
Fill in the blank(s) with the appropriate word(s).
When teeth are cut to a standard shape with special cutters, it is not necessary to show the individual teeth on the drawing
Indicate whether the statement is true or false
In the English system of measure, magnetic strength is measured in terms of _____.
A. residual magnetism B. reluctance C. permeability D. flux density