Refrigerants

Exit

Question 1 of 1

  Time Left


0
153105
0
120
block

Which of the following refrigerants have the designation R-40

Select the Correct Answers  

(0/0)












153106
0
120
none
153108
0
120
none
153109
0
120
none
153110
0
120
none
153111
0
120
none
153112
0
120
none
153113
0
120
none
153118
0
120
none
153120
0
120
none
153121
0
120
none
153122
0
120
none
153124
0
120
none
153125
0
120
none
153126
0
120
none