Who needs 609 certification?

Who needs 609 certification? Any person who repairs or services a motor vehicle air conditioning (MVAC) system for consideration (payment or bartering) must be properly trained and certified under section 609 of the Clean Air Act by an EPA-approved program. All technicians servicing MVAC-like appliances must be certified. What certification is needed for HVAC? Environmental […]

What is the color of fresh apple?

What is the color of fresh apple? green How do I know if my apple is original? Make sure that Serial Number in the device under Settings > General >About matches the Serial Number on the box. If it correctly reports your model of iPhone you are presented with, like model, color and capacity, and […]

What is caused by ignition of air fuel mixture?

What is caused by ignition of air fuel mixture? During normal ignition, the spark plug fires just before the piston reaches TDC. The flame travels across the combustion chamber igniting the Air/Fuel Mixture. This causes a steady increase in cylinder pressure and forces the piston down on the Power Stroke. This causes a brief, but […]

What are the characteristics of structured programming?

What are the characteristics of structured programming? Structured programming is a program written with only the structured programming constructions: (1) sequence, (2) repetition, and (3) selection. Sequence. Lines or blocks of code are written and executed in sequential order. Repetition. Repeat a block of code (Action) while a condition is true. Selection. What is programming […]

How can a simple machine reduce force?

How can a simple machine reduce force? A lever makes work easier by reducing the force needed to move a load by increasing the distance. A Lever is a simple machine consisting of a rigid bar that rotates about a fixed point, called a fulcrum. The lever makes doing work easier by reducing the force […]

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