Each cell of an automobile 12 volt battery can produce about ________ volts
A) 4.2 B) 4 C) 2.1 D) 1.2
C
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The TTY method of tightening bolts involves which of these processes?
A) Torqueing to one-half specifications, then to three-quarter torque, then to full torque B) Turning bolts a specified number of degrees after initial torque C) Torqueing to specifications and loosening by a specified number of degrees D) Turning all bolts the same number of turns
What is the most common cause of puff-back?
A) Delayed ignition because of a blocked combustion chamber B) Premature ignition caused by higher-than-normal oil pressure C) Delayed ignition because of a plugged oil filter D) Premature ignition caused by an excessively high ignition voltage
The number of cycles completed in one second is called a _____.
A. cycle B. hertz C. frequency D. rotation
Which statement about the operation of HVAC equipment during fire ventilation operations is correct?
a. HVAC systems should be shut down as soon as possible b. it is important to maintain power to the HVAC system at all times c. HVAC systems are designed to automatically shut down when smoke is detected d. some HVAC systems incorporate features that are useful for clearing smoke