Why would a missing or broken ground strap cause a transmission bushing, wheel bearing, or emergency brake cable to burn or fail?
What will be an ideal response?
This is because electricity follows the path of least resistance to ground, causing etching and heat. A bushing, bearing, or cable may become an alternate "ground" circuit if the strap is not attached. A missing ground strap can also interfere with proper operation of electrical circuits.
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Indicate whether the statement is true or false.
Technician A says a chronic exposure occurs at a low concentration for an extended period of time. Technician B says the effects of an acute exposure are usually permanent. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B
System memory of a PLC ____________________ (is, is not) accessible to the user, and the application memory ____________________ (is, is not) accessible to the user.
Fill in the blank(s) with the appropriate word(s).
In batch production applications, ____ are the two most common process variables that must be regulated to control the rate of reaction.
A. level and flow B. level and pressure C. temperature and pressure D. level and temperature