Compare the overall environmental impact of plastic and paper grocery sacks
What will be an ideal response?
Paper sacks are seen to be more polluting to make and dispose of. They can be biodegradable, although probably not in landfills because the conditions are not correct for degradation. The weight of paper bags and the volume of paper bags
are both much higher than an equal number of plastic bags, thus complicating the landfill problem.
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The thermal capacity of the stator windings greatly limits the length of starting time for a part winding motor. How do you overcome this problem?
What will be an ideal response?
What is a retarder?
A. A device that prevents a vehicle from going too fast B. A device that prevents a vehicle from being too loud C. A device that improves a vehicle's gas mileage
Which of the following can be used to find the presence of power, open switches, defective capacitors, broken wires, or blown fuses?
a. ohmmeter b. voltmeter c. ammeter d. thermocouple
One advantage blast freezing offers over some other forms of freezing is _____.
a. the ability to freeze foods of irregular size and shape b. that dehydration is minimized c. that it is the most rapid freezing method d. that foods become lighter in weight and need no future refrigeration