As the latent heat of condensation is transferred to the airstream in the condenser, the refrigerant makes the change into a ________.
A) Gas
B) Solid
C) Vapor
D) Liquid
D) Liquid
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Which of the following is NOT an intake system component?
A. charge air cooler B. air cleaner C. turbocharger D. catalytic converter
When a diesel engine is said to be hydromechanically managed, which of the following components would NOT be used?
A. fuel injectors B. computer C. mechanical governor D. fuel transfer pump
A large water utility is planning to upgrade its SCADA system for controlling well pumps, booster pumps, and disinfection equipment so that everything can be centrally controlled. Phase I will reduce labor and travel costs by $28,000 per year. Phase II will reduce costs by an additional $20,000 per year, that is, $48,000. Phase I savings should occur in years 0, 1, 2, and 3 and phase II savings should occur in years 4 through 10. Let i = 8% per year.
(a) Using a spreadsheet determine the present worth of the upgraded system for years 1 to 10. (b) The utility General Manager had hoped for a present worth of at least $400,000. Determine the interest rate at which this would be correct.
Each cell of an automobile 12 volt battery can produce about ________ volts
A) 4 B) 4.2 C) 2.1 D) 1.2