Technician A says that water based fire extinguishers remove oxygen from the fire. Technician B says that CO2 fire extinguishers remove oxygen from the fire. Which technician is correct?

A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician


B) Technician B only

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What does HD-OBD specifically mandate? 

A. Enabling J1939 bus access B. Enabling bus access to emissions-related fault repairs C. Improving diesel engine fuel economy D. All of the above

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?Pipe structures such as handrails and truck racks are examples of ___________ piping applications.

A. ?light-weight piping B. ?light structural piping C. ?heavy structural piping D. ?medium structural piping

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Which of the following is not permitted to be connected to a small appliance branch circuit?

a. Refrigerator b. Electric clock c. Gas stove d. Kitchen lighting fixture

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For the ideal gas law given in Problem 6.31, if the units of P, V, m, and T are expressed in lbf/ft2, ft3, lbm, and degree Rankine (°R), respectively, what is the appropriate unit for gas constant R if the ideal gas law is to be homogenous in units?

What will be an ideal response?

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