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You Are On Multi Choice Question Bank SET 1331
66551. In a DTP software,to stretch a short title of a paper across the page,use the___________option
(A): Expanded (B): Proportional (C): Scale (D): Horizontal Alignment
66552. Digital electronics is based on the _________ numbering system.
(A): decimal (B): hexadecimal (C): binary (D): octal
66553. In addition to the slides tab in Normal View,which view allows a user to select slides in MS Power Point:
(A): Slide show (B): Print preview (C): Outline (D): Slide sorter
66554. A slide show begins with the :
(A): animated slide (B): Current slide (C): Bulleted slide (D): First slide
66555. A BCD code that represents each digit of a decimal number by a binary number derived by adding 3 to its 4-bit true binary value is _________.
(A): excess-3 code (B): 8421 code (C): gray code
66556. What is an I-beam?
(A): A pointer used to select text (B): A special tool used in animations (C): Transitions (D): None of these
66557. A binary code that progresses such that only one bit changes between two successive codes is _________.
(A): excess-3 code (B): 8421 code (C): gray code
66558. What is the full form of POST?
(A): Program Oriented System Testing (B): Print On Self Test (C): Private Office Software Trainee (D): Poewer On Self Test
66559. A binary number's value changes most drastically when the ____ is changed.
(A): LSB (B): duty cycle (C): MSB (D): frequency
66560. The binary coded decimal (BCD) code is a system that represents each of the 10 decimal digits as a(n) ____________.
(A): 4-bit binary code (B): 8-bit binary code (C): 16-bit binary code (D): ASCII code
66561. The __________ code is a nonweighted binary code.
(A): excess-3 (B): gray (C): multibit (D): minival
66562. Base 10 refers to which number system?
(A): binary coded decimal (B): decimal (C): octal (D): hexadecimal
66563. The CPU communicate with the memory using:
(A): Control bus (B): Data bus (C): Address bus (D): All of the above
66564. How can you save a fiel with a new name in MS Excel?
(A): Using save as menu (B): Using save menu (C): Using copy and paste options (D): Using cut and paste options
66565. The number of bits used to store a BCD digit is:
(A): 8 (B): 4 (C): 1 (D): 2
66566. Sample-and-hold circuits in ADCs are designed to:
(A): sample and hold the output of the binary counter during the conversion process (B): stabilize the ADCs threshold voltage during the conversion process (C): stabilize the input analog signal during the conversion process (D): sample and hold the ADC staircase waveform during the conversion process
66567. What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h?
(A): 43.75 (B): 70 (C): 43,750 (D): 70,000
66568. A damaged resistor
(A): may appear burned (B): may have an increased resistance value (C): may be checked with an ohmmeter (D): All of the above
66569. Power supplies differ from batteries in that
(A): power supply output voltages are ac and not dc (B): power supply voltages are not stable (C): power supplies are low-current devices (D): None of the above
66570. What is the resistor value in the given circuit?
(A): 200 (B): 1 k (C): 2 k (D): 4 k
66571. If voltage across a resistance doubles
(A): the current is halved (B): the resistance doubles (C): the current is unchanged (D): none of the above
66572. What is the power in the given circuit?
(A): 32 W (B): 80 W (C): 500 W (D): 16 kW
66573. Ohm's law describes the mathematical relationship between
(A): ohms, kilohms, and megohms (B): resistor size and resistor value (C): resistance, voltage, and current (D): none of the above
66574. Energy is defined as the ability to
(A): produce heat (B): produce light (C): produce sound (D): All of the above
66575. What electromotive force would cause 20 A of current to flow through a 500 resistor?
(A): 0.04 V (B): 2.5 V (C): 25.0 V (D): 10,000 V
66576. The rate at which work is performed is called
(A): current (B): energy (C): power (D): voltage
66577. A battery's capacity to deliver power is measured in
(A): kWh (B): Ah (C): Wh (D): Vh
66578. Power supplies are regulated to prevent the output voltage from changing due to changes in the
(A): line voltage (B): supply load (C): frequency (D): both line voltage and supply load
66579. If current through a resistance is halved
(A): the resistance is halved (B): the voltage is halved (C): the voltage doubles (D): none of the above
66580. Ohm's law is a relationship between
(A): voltage, current, and time (B): power, current, and resistance (C): resistance, time, and current (D): voltage, current, and resistance
66581. If the voltage in the given circuit was cut in half, what would the current equal?
(A): 10 mA (B): 30 mA (C): 60 mA (D): 90 mA
66582. Using 4 kWh of power is equivalent to using 2000 W of power for 2 h.
(A): True (B): False
66583. The current through a resistor can be found by dividing the resistor's voltage by its ohmic value.
(A): True (B): False
66584. The voltage drop across a resistor is simply a difference of potential across that resistor.
(A): True (B): False
66585. Doubling the voltage across a resistor will cut the current by half.
(A): True (B): False
66586. Current and voltage have a nonlinear relationship.
(A): True (B): False
66587. The efficiency rating of a power supply is determined by internal power loss.
(A): True (B): False
66588. The value of a resistor is in direct proportion to its power handling capabilities.
(A): True (B): False
66589. Heat produced by a resistor is generally a desirable effect.
(A): True (B): False
66590. Power is a measure of how fast current is flowing.
(A): True (B): False
66591. If the current in the given circuit is increased to 24 mA, the source voltage must have tripled.
(A): True (B): False
66592. Generally, increasing the resistance in a circuit will decrease the current.
(A): True (B): False
66593. If the voltage across a resistor ___, the current flowing through it will increase.
(A): increases (B): decreases (C): stays the same (D): Not enough information
66594. The voltage across a ___ resistor is 12 V and the current through it is 500 A.
(A): 600 (B): 2.4 k (C): 6 k (D): 24 k
66595. The voltage supplying the current in the given circuit is _____.
(A): 2.5 V (B): 25 V (C): 250 V (D): 2.5 kV
66596. The voltage across a 2.2 k resistor is ___ if 3 mA of current is flowing through it.
(A): 6.6 V (B): 7.33 V (C): 1.4 V (D): 0.8 V
66597. The power rating for the resistor in the given circuit should be at least ___.
(A): 1/4 W (B): 1/2 W (C): 1 W (D): 2 W
66598. The ___ rating of a resistor will increase with an increase in the surface area of the resistor.
(A): resistance (B): current (C): power (D): voltage
66599. The number of joules used in 1 second is always equal to the number of _______.
(A): siemens (B): coulombs (C): amperes (D): watts
66600. The power is ___ if 200 J of energy are used in 10 s.
(A): 2 W (B): 5 W (C): 20 W (D): 50 W
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