How are gasoline and diesel engines different in their operation?
What will be an ideal response?
A gasoline engine uses a spark plug to supply a heat source to ignite the air/fuel mixture. A diesel engine compresses the air drawn into the cylinders so much that when fuel is injected at the proper time, the heat of the compressed air ignites the fuel, causing the combustion process.
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Determine the area of a triangle if the height is 36 centimeters and the base is 42 centimeters.
Fill in the blank(s) with the appropriate word(s).
Freeport McMoRan engineers estimated that the capital investment necessary for recovering valuable metals (nickel, silver, gold, etc.) from a copper refinery’s wastewater would be $150 million. The equipment is expected to have a useful life of 10 years with no salvage value. The amount of metal currently discharged in the wastewater is 12,500 pounds per year. The recovered metals are expected to have a selling price of $250 per pound. The efficiency relation of the recovery operation is represented by X 0.5, where X represents the efficiency in percentage. What value of X is necessary for the company to break even? Assume i = 10% per year.
The costs and revenue projections for a new product are estimated. What is the estimated profit at a production rate of 20% above breakeven? Fixed cost = $500,000 per year Production cost per unit = $200 Revenue per unit = $250
What happens if a technician comes into contact with the spark-ignition circuit while it is energized?
A) The technician will cause the circuit to short out. B) The technician will likely not notice the contact. C) The technician will experience great discomfort. D) The technician will possibly die.
Sam's telephone number is 753-2133. The digits 753 are called the:
A) area code B) suffix C) exchange code D) none of the above