List the advantages and disadvantages of semiconductors.
What will be an ideal response?
Advantages of semiconductors include the following:
• Small size and weight
• Low power consumption at low voltages
• High efficiency
• Great reliability
• Ability to operate in hazardous environments
• Instant operation when power is applied
• Economic mass production
Disadvantages of semiconductors include the following:
• Great susceptibility to changes in temperature
• Extra components required for stabilization
• Easily damaged (by exceeding power limits, by reversing polarity of operating voltage, by excess heat when soldering into circuit)
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While discussing EVAP valves, Technician A says the evaporative emissions system has to be able to detect a leak as small as 0.010" in size. Technician B says that the monitor for the EVAP system works by closing the vacuum and vent valves and watching to see if the tank pressure drops. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
Diesel engines will run on pure vegetable oil
Indicate whether the statement is true or false.
How much could BTU Oil & Gas Fracking afford to spend on new equipment each year for the next 3 years if it expects a profit of $50 million 3 years from now? Assume the company’s MARR is 20% per year.
What will be an ideal response?
The most common form of isometric is the ____ isometric.
A. reverse B. regular C. long-axis D. box E. none of the above