The basic op-amp square wave oscillator is actually a:
A) resistor-capacitor (RC) time constant oscillator. B) sine wave oscillator.
C) Wein-bridge oscillator. D) all of these.
A
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What is the purpose of the footstock spring-loaded spindle?
A) It keeps the lubricant in place B) It maintains a constant pressure on the workpiece centers C) It facilitates installation and removal of the part in the cylindrical grinder D) Both A and B above
How is mineral insulated (MI) heating cable used?
A) In standard electric cords B) Embedded in concrete for electric radiant floor heating C) To make the heating elements in baseboard electric heaters D) To supply the power wiring to all types of electric heaters
Solids contain ________ amount of energy within materials or substances when they are in their various physical states
A) the highest B) a variable C) the least D) the equivalent
When working on a type of system that you have never seen before, you should:
A) Replace any electronic boards first. B) Locate the manufacturer's troubleshooting guide. C) Methodically replace the parts until you locate the issue. D) Assume that it works like other equipment you are familiar with.