What are the advantages and disadvantages of an ELV vehicle?
What will be an ideal response?
Advantages are: Zero emissions, becoming more viable and common. Disadvantages are: High cost, low range.
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Thyristors are solid-state devices that exhibit ____ state(s) of operation
a. one b. two c. four d. eight
The larger the size of the soil particles, the smoother the soil will feel
Indicate whether the statement is true or false
A stone and gravel quarry in Texas can use a percentage depletion rate of 5% of gross income, or a cost depletion rate of $1.28 per ton. Quarry first cost = $3.2 million; estimated total tonnage = 2.5 million tons; tonnage this year = 65,000; gross income = $40 per ton. Of the two depletion charges, the method and larger amount are: (choose one)
(a) Percentage at $83,200 (b) Percentage at $130,000 (c) Cost at $80,000 (d) Cost at $130,000
In 2004, what system became a requirement on highway compliant diesel engines to meet tough emissions standards?
A. Diesel particulate filters (DPFs). B. Selective catalytic reduction (SCRs). C. Positive crankcase ventilation (PCV). D. Exhaust gas recirculation (EGR).