The speed of a moving coil motor (MCM) is varied by __________.
A. changing the DC voltage applied to the armature
B. changing the width of DC pulses applied to the armature
Answer: B
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____________________ controls use sound waves and vibrations, which are reflected back to the control from the ice.
Fill in the blank(s) with the appropriate word(s).
How can you check that the phase rotation of both AC generators being synchronized is the same?
What will be an ideal response?
In process control, it is very common to describe process variables being measured as ____________________ rather than absolute values.
Fill in the blank(s) with the appropriate word(s).
If your skin briefly comes into contact with wet mortar, you should _____
A) wipe off the excess and/or ignore it because wet concrete can?t hurt you B) wash the contact area C) clean the area with an antibacterial cleanser and apply a bandage D) seek medical attention