A large capacity evaporator would probably have ____.
A. stainless steel tubing
B. an excess of liquid refrigerant
C. an excess of vapor refrigerant
D. multiple refrigerant circuits
Answer: D
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In some cases, it is legal to use chemicals for purposes other than those specified on the label
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REFRIGERANT
TEMP _____________________ TEMP ______________________ TEMP ________________________ °F 12 22 134a 502 °F 12 22 134a 502 °F 12 22 134a 502 -60 19.0 12.0 7.2 12 15.8 34.7 13.2 43.2 42 38.8 71.4 37.0 83.8 -55 17.3 9.2 3.8 13 16.4 35.7 13.8 44.3 43 39.8 73.0 38.0 85.4 -50 15.4 6.2 0.2 14 17.1 36.7 14.4 45.4 44 40.7 74.5 39.0 87.0 -45 13.3 2.7 1.9 15 17.7 37.7 15.1 46.5 45 41.7 76.0 40.1 88.7 -40 11.0 0.5 14.7 4.1 16 18.4 38.7 15.7 47.7 46 42.6 77.6 41.1 90.4 -35 8.4 2.6 12.4 6.5 17 19.0 39.8 16.4 48.8 47 43.6 79.2 42.2 92.1 -30 5.5 4.9 9.7 9.2 18 19.7 40.8 17.1 50.0 48 44.6 80.8 43.3 93.9 -25 2.3 7.4 6.8 12.1 19 20.4 41.9 17.7 51.2 49 45.7 82.4 44.4 95.6 -20 0.6 10.1 3.6 15.3 20 21.0 43.0 18.4 52.4 50 46.7 84.0 45.5 97.4 -18 1.3 11.3 2.2 16.7 21 21.7 44.1 19.2 53.7 55 52.0 92.6 51.3 106.6 -16 2.0 12.5 0.7 18.1 22 22.4 45.3 19.9 54.9 60 57.7 101.6 57.3 116.4 -14 2.8 13.8 0.3 19.5 23 23.2 46.4 20.6 56.2 65 63.8 111.2 64.1 126.7 -12 3.6 15.1 1.2 21.0 24 23.9 47.6 21.4 57.5 70 70.2 121.4 71.2 137.6 -10 4.5 16.5 2.0 22.6 25 24.6 48.8 22.0 58.8 75 77.0 132.2 78.7 149.1 -8 5.4 17.9 2.8 24.2 26 25.4 49.9 22.9 60.1 80 84.2 143.6 86.8 161.2 -6 6.3 19.3 3.7 25.8 27 26.1 51.2 23.7 61.5 85 91.8 155.7 95.3 174.0 -4 7.2 20.8 4.6 27.5 28 26.9 52.4 24.5 62.8 90 99.8 168.4 104.4 187.4 -2 8.2 22.4 5.5 29.3 29 27.7 53.6 25.3 64.2 95 108.2 181.8 114.0 201.4 0 9.2 24.0 6.5 31.1 30 28.4 54.9 26.1 65.6 100 117.2 195.9 124.2 216.2 1 9.7 24.8 7.0 32.0 31 29.2 56.2 26.9 67.0 105 126.6 210.8 135.0 231.7 2 10.2 25.6 7.5 32.9 32 30.1 57.5 27.8 68.4 110 136.4 226.4 146.4 247.9 3 10.7 26.4 8.0 33.9 33 30.9 58.8 28.7 69.9 115 146.8 242.7 158.5 264.9 4 11.2 27.3 8.6 34.9 34 31.7 60.1 29.5 71.3 120 157.6 259.9 171.2 282.7 5 11.8 28.2 9.1 35.8 35 32.6 61.5 30.4 72.8 125 169.1 277.9 184.6 301.4 6 12.3 29.1 9.7 36.8 36 33.4 62.8 31.3 74.3 130 181.0 296.8 198.7 320.8 7 12.9 30.0 10.2 37.9 37 34.3 64.2 32.2 75.8 135 193.5 316.6 213.5 341.2 8 13.5 30.9 10.8 38.9 38 35.2 65.6 33.2 77.4 140 206.6 337.2 229.1 362.6 9 14.0 31.8 11.4 39.9 39 36.1 67.1 34.1 79.0 145 220.3 358.9 245.5 385.0 10 14.6 32.8 11.9 41.0 40 37.0 68.5 35.1 80.5 150 234.6 381.5 262.7 408.4 11 15.2 33.7 12.5 42.1 41 37.9 70.0 36.0 82.1 155 249.5 405.1 280.7 432.9 A cylinder with 1,500 sq. in. of internal surface contains R-22 and is in a service truck body at 120°F. What is the total outward force of the refrigerant against the inner wall of the cylinder in tons of pressure? A. 202.64 B. 226.61 C. 194.92 D. 145.71
When should an investigation be reported? Why?
What will be an ideal response?