2. the two outputs of a digital controller for an automatic drip coffee maker are for the time
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Computers and Technology, 22.12.2019 06:31 avavackity
2. the two outputs of a digital controller for an automatic drip coffee maker are for the time
a. display and pilot light.
b. display and relay output.
c. and water temperature displays.
d. and date displays.
student d
incorrect
5. wires used for electrical connections in a rotisserie should be insulated with
a. hard rubber.
b. fiberglass.
c. thermoplastic.
d. mica.
student d
incorrect
7. a recommended cleaner for the bowls of coffee brewers is
a. a vinegar-water solution.
b. a baking-soda solution.
c. scouring powder.
d. abrasive soap.
student a
incorrect
8. a hammer should not be applied to the gear shafts of an electric rotisserie because the shafts may be made of
a. copper.
b. steel.
c. aluminum.
d. brass.
student a
incorrect
9. why can some electric appliances be immersed in water without damage?
a. they use a ribbon heating element on a mica sheet.
b. the thermostat and the timer are in a sealed compartment below the pan.
c. the heating element is sealed and the control is in the detachable probe.
d. the heavy aluminum shell protects the thermostat.
student b
incorrect
10. a digital clock on a small cooking appliance keeps time by
a. locking on to the power line frequency.
b. creating its own 60 hz. squarewave.
c. monitoring the frequency of a quartz-timed oscillator
d. using an internal crystal oscillator at 60 hz.
student c
incorrect
14. when plug prongs are connected to the metal case of an appliance, a part that should always be placed next to the case is a
a. mica washer.
b. flat metal washer.
c. hexagonal aluminum shoulder.
d. steel nut.
student c
incorrect
17. an appliance plug can be distinguished from other plugs by its
a. permanent attachment to an appliance.
b. female terminals, thermostat, and probe.
c. three prongs.
d. metal construction.
student a
incorrect
18. when you check a toaster with a digital or analog vom, which one of the following indicates dirty contacts on the thermostat blade?
a. current higher than the rated current.
b. no deflection on the ohmmeter or high resistance on the display.
c. full deflection on the ohmmeter or a reading of zero ohms.
d. current lower than the rated current.
student c
incorrect
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