How do you check the condition of a charging system?
What will be an ideal response?
To quickly check the condition of a charging system, connect a voltmeter across the battery. With the engine off, you will read battery voltage. It should be above 12.6 volts. If not, the battery needs charging or is defective. When you start the engine with all electrical accessories on (lights, radio, and so on), the voltage must stay above battery voltage. If not, there is something wrong with the charging system.
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What is it called when all conductors are not energized at the same time?
What will be an ideal response?
What does the acronym IPM stand for?
What will be an ideal response?
1. A walk-in freezer using R404A has the following conditions. Which of the groups of choices is the most logical explanation for the problem?
? Box temperature 30° ? Suction pressure 20 psig LOW Evaporator temperature (-15°) ? Suction line leaving the evaporator is 20° HIGH Superheat (35°) ? Ambient temperature is 70° ? Head pressure is 190 psig LOW (85° condensing temp means 15° condenser split) ? The liquid line is 75°. NORMAL subcooling (10°) a. The unit is low on refrigerant or the ambient is too cold. b. There is a restriction in the liquid line or the expansion valve. c. The head pressure control is not operating on the condenser. d. The evaporator is dirty, iced up, or there is an evaporator fan problem.
The terms environmentally friendly and environmentally sound refer to constructing buildings with new materials, and manufactured products.
Answer the following statement true (T) or false (F)