Explain how leaving a controller in manual affects the way it responds to process changes
What will be an ideal response?
When a controller is left in manual, the operating percentage on the valve does not change. For example, If the opening on a level control valve is 25% and the level increases, the valve will not open wider to control the level.
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Answer the following statement(s) true (T) or false (F)
1. Analog meters operate on the principle that like magnetic poles attract each other. 2. The secondary winding of a CT should never be opened when power is being applied to the primary. 3. The Hall generator produces a voltage in the presence of a magnetic field. 4. A bridge is constructed by connecting six components to form a parallel-series circuit. 5. A Megger® is available as a battery-operated model.
Cereals and potato together supply less than 50% of the world's food calories
Indicate whether the statement is true or false
An electric motor is running on 120 V. The current is measured to be 2 A. How many ohms of resistance is the motor?
A. 60 B. 118 C. 122 D. 240
When centering an isometric drawing, the first step should be to:
A. calculate half the distance of the height, depth, and width B. mark the center of the page C. sketch the object approximately where it belongs D. Any of these steps can be done first.