Engine : Refrigeration AC - 481/610
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| Expansion valve maintenance should include which of the following procedures? |
| A) Ensuring that the thermal bulb is in good contact with the suction line and insulated. |
| B) Checking that the thermal bulb is in the proper location. |
| C) Cleaning of in-line strainers as necessary. |
| D) All of the above. |
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