What kinds of machines use sequence control? Give at least one example.
What will be an ideal response?
Sequence control is used by such machines as hydraulic presses that must have a high pressure pump operating before they can be used, or by air conditioning systems that require that the blower be in operation before the compressor starts
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Answer the following statements true (T) or false (F)
1. Each of the goals and objectives must be measurable and definable. 2. All plans are more than a dream but the plan does not require monitoring. 3. Once the plan for the company has been written, it is essential to make mid-course corrections in order for the plan to reach its destination. 4. Methodical planning is better than failing to plan at all. 5. Every plan, especially a strategic plan, requires monitoring and reporting.
Which of the following animals does NOT provide most of the milk and milk products to the world?
A) Water buffalo B) Goats C) Sows D) Cows
Technician A says that the most common cause of trailer landing gear failures is crank gear tooth failure. Technician B says that landing gear is designed to sustain vertical weight forces and not the effects of the horizontal ramming that takes place during coupling. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
A pressure-temperature defrost control is activated by the ____.
A. difference of the pressure in the fan compartment and the temperature of the coil B. difference in pressure between the outdoor pressure and the fan discharge pressure C. difference in the pressure of the air through the outdoor coil D. difference in pressure of the refrigerant in the condenser and the pressure in the coil