An operational amplifier, as used in todays consoles, may have a calculated gain of 5√This means that as the input changes by ()
A . 1 volt, the output changes 5 volts
B . 5 volts, the output changes 1 volt
C . 5 volts, the output changes 10 volts
D . 10 volts, the output changes 5 volt
相似题目
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White smoke exhausting from an operating diesel engine may indicate ().
A . a cracked liner
B . burning lube oil
C . an overloaded engine
D . insufficient combustion air
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An offshore drilling unit is required to carry on board an operations manual approved by the ().
A . Coast Guard
B . National Cargo Bureau
C . Minerals Management Service
D . builder
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Operational amplifiers, used primarily in analog circuits, are characterized by()
A . high input impedance, high gain and low output impedance
B . high input impedance, high gain and high output impedance
C . low input impedance, low gain and high output impedance
D . low input impedance, high gain and low output impedance
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What is NOT an advantage of containership operations over conventional break-bulk operations? ().
A . Flexibility of operation
B . Greater operational safety
C . Lower stevedoring costs
D . Reduction of cargo damage
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On what does the operation of an aneroid barometer depend?()
A . Thin,metal,air tight cell
B . Curved tube containing alcohol
C . Column of mercury supported by atmospheric pressure
D . Expansion of mercury in a closed tube
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What are three factors that limit the maximum distance of an amplified optical signal without regeneration? ()(Choose three.)
A . fiber dispersion
B . signal attenuation
C . transmitter power
D . amplifier bandwidth
E . receiver dispersion tolerance
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To increase the frequency of an operating AC generator, you should ()
A . increase the field excitation
B . decrease the field excitation
C . increase the number of magnetic poles
D . increase the speed of the prime mover
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An operational amplifier, as used in todays consoles, has a calculated gain of 5This means that when the input changes ()
A . 5 volts, the output changes 10 volts
B . 10 volts, the output changes 5 volts
C . 2 volts, the output changes 10 volts
D . 10 volts, the output changes 2 volt
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An SES operator can chose the most suitable CESs according to().
A . the routing agreement for a particular ocean region
B . The communication service he required
C . the positions of his ship and the CESs
D . B and C
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The operating cord on an inflatable liferaft also serves as a().
A . lifeline
B . painter
C . drogue
D . marker
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The operating water is supplied under the ()of an oil separator.
A . sliding bowl bottom
B . bowl hood
C . bowl
D . filter unit
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The operating cord on an inflatable liferaft should be renewed by().
A . removing the top half of the shell,cutting the line at its source,and renewing completely
B . cutting the line where it enters the case and replacing that portion
C . leaving the original line and tying another one to it so the two lines will take the strain
D . an approved servicing facility ashore
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Which two operations can be performed on an external table()
A . Create a view on the table.
B . Create an index on the table.
C . Create a synonym on the table.
D . Add a virtual column to the table.
E . Update the table using the UPDATE statement.
F . Delete rows in the table using the DELETE command
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Which operation requires that you create an auxiliary instance manually before executing the operation?()
A . Backup-based database duplication.
B . Active database duplication.
C . Tablespace point-in-time recovery.
D . No operation requires the creation of an auxiliary instance.
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An electronic depth finder operates on the principle that().
A . radio signals reflect from a solid surface
B . sound waves travel at a constant speed through water
C . radar signals travel at a constant speed through water
D . pressure increases with depth
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What are three factors that limit the maximum distance of an amplified optical signal without regeneration? ()
A . fiber dispersion
B . signal attenuation
C . transmitter power
D . amplifier bandwidth
E . receiver dispersion tolerance
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A(An) decides and carries out the operation.
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An industry is the classification of business operation.
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Without an operating system, a user can not run an application program on their computer.
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an inverter performs the NOR operation
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Operation Lifesavers Inc. is an organization that
A.was first founded by railroad companies.
B.has designed an online course for drivers.
C.has helped 15,000 drivers to get their licenses.
D.collects membership fees from professional truckers.
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The doctor was () an operation tosave the patient&39;s life.
A.acting
B.limiting
C.performing
D.assuming
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Which of the following is NOT an operating expense()
A.Interest expense
B.Depreciation and amortization
C.Selling, general and administrative expenses
D.Research and development