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You Are On Multi Choice Question Bank SET 954

47701. Digital representations of numerical values of quantities may BEST be described as having characteristics:





47702. A common instrument used in troubleshooting a digital circuit is a(n) ________.





47703. The parallel transmission of digital data:





47704. Convert the fractional decimal number 6.75 to binary.





47705. What is one relative disadvantage of serial transfer?





47706. Which format requires fewer conductors?





47707. A pulse has a period of 15 ms. Its frequency is ________.





47708. Give the decimal value of binary 10000110.





47709. The rise time is the time it takes a pulse to go from ________.





47710. What is an analog-to-digital converter?





47711. A multiplexer has ________.





47712. What is the decimal value of 23 ?





47713. An encoder converts ________.





47714. What kind of logic device or circuit is used to store information?





47715. PLCC packages have leads on ________.





47716. What is the typical invalid voltage for a binary signal?





47717. Convert the fractional binary number 0001.0010 to decimal.





47718. Convert the fractional binary number 10010.0100 to decimal.





47719. How many binary bits are necessary to represent 748 different numbers?





47720. A periodic digital waveform has a pulse width (tw) of 6 ms and a period (T) of 18 ms. The duty cycle is ________.





47721. Any number with an exponent of one is equal to:





47722. Serial format means digital signals are:





47723. What is the decimal value of 2–1 ?





47724. Which format can send several bits of information faster?





47725. The frequency of a pulse train is 2 kHz. The pulse period is ________.





47726. What has happened to the advances in digital technologies over the past three decades?





47727. A type of digital circuit technology that uses bipolar junction transistors is ________.





47728. How many unique symbols are used in the decimal number system?





47729. A classification of ICs with complexities of 12 to 100 equivalent gates on a chip is known as ________.





47730. Which of the following is a semiconductor memory?





47731. The holes through a PC board are ________.





47732. A classification of ICs with complexities of 100 to 10,000 equivalent gates per chip is known as ________.





47733. The voltage levels used to represent binary values (0 and 1) in a digital system are nearly equal in value.



47734. In a serial data system, the data is transmitted along a group of conductors simultaneously.



47735. Temperature variation is normally an analog quantity.



47736. Transistor-transistor logic (TTL) uses the bipolar transistor as its main circuit element.



47737. A digital quantity has a discrete set of values.



47738. SMT stands for small-to-medium technology.



47739. X-ray, MRI, and ultrasound systems in hospitals are examples of analog systems.



47740. Greater accuracy and precision are possible with digital techniques.



47741. With an OR gate, the output is HIGH only when both inputs are HIGH.



47742. The time interval on the leading edge of a pulse between 10% and 90% of the amplitude is the rise time.



47743. Telecommunications systems do not use digital techniques.



47744. The real world is mainly analog.



47745. Binary means having two states or values.



47746. Four bits equal one byte.



47747. An inverter performs a NOT operation.



47748. In a positive logic system, the logic LOW could be between 0 V and 0.8 V.



47749. In a binary system there are only two symbols.



47750. Using digital techniques of information storage is easy.



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