Why are chillers often used to cool large buildings?
a. Chillers use less refrigerant than other units.
b. Refrigerant piping is small because of low pressures.
c. Refrigerant piping is small because of high pressure.
d. Water piping is less expensive to install.
d
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The vent valve in an evaporative emissions system may be:
A. Opened to allow fresh air through the charcoal canister. B. Closed with the purge valve open while the PCM monitors the fuel tank pressure sensor for vacuum C. Closed to prevent the system from purging. D. Both A and B
Si la resistencia de un circuito es de 100 ohmios y la corriente es de 5A, la potencia es de _____ vatios.
a. 5 b. 50 c. 500 d. 2500
The term handshake is used to verify what condition?
A. Two way communications between the target module and an EST. B. Compatibility of different data bus standards. C. Error conditions put out by the CPU. D. That a module is maintaining a proper V-Ref level.
Carbon monoxide alarms should be placed _____.
A. in the kitchen B. in the garage C. outside of each sleeping area D. along each staircase