Technician A says that current air brake systems are designed to bring a fully loaded tractor trailer combination safely to a complete standstill in the event of a complete failure of either the primary or secondary circuits. Technician B says that in an emergency, a tractor-trailer combination can be driven a few miles providing only the secondary circuit has failed. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: A
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In order to change the direction of rotation of a split-phase motor, the technician must change the direction of current flow through the start winding.
Answer the following statement true (T) or false (F)
A device that can be significantly made more energy efficient by the addition of underground water carrying piping attached to the condenser is a ______________________.
What is the term used to describe the temperature of a liquid below its boiling point?
A. superheated B. evaporated C. subcooled D. frozen
The trapping of the Earth's heat in the atmosphere which is causing global warming is called the _________________________.
Fill in the blank(s) with the appropriate word(s).