Digital Electronics Multiple Choice Questions Part 1

1.	Any number with an exponent of zero is equal to:
	A. zero B. one C. that number D. ten

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2.	In the decimal numbering system, what is the MSD?
	A. The middle digit of a stream of numbers B. The digit to the right of the decimal point C. The last digit on the right D. The digit with the most weight

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3.	Which of the following statements does NOT describe an advantage of digital technology?
	A. The values may vary over a continuous range. B. The circuits are less affected by noise. C. The operation can be programmed. D. Information storage is easy.

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4.	The generic array logic (GAL) device is ________.
	A. one-time programmable B. reprogrammable C. a CMOS device D. reprogrammable and a CMOS device

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5.

The range of voltages between VL(max) and VH(min) are ________.

A. unknown B. unnecessary C. unacceptable D. between 2 V and 5V  6.  What is a digital-to-analog converter? A. It takes the digital information from an audio CD and converts it to a usable form. B. It allows the use of cheaper analog techniques, which are always simpler. C. It stores digital data on a hard drive. D. It converts direct current to alternating current. 7.  What are the symbols used to represent digits in the binary number system? A. 0,1 B. 0,1,2 C. 0 through 8 D. 1,2 8.  A full subtracter circuit requires ________. A. two inputs and two outputs B. two inputs and three outputs C. three inputs and one output D. three inputs and two outputs 9.  The output of an AND gate is LOW ________. A. all the time B. when any input is LOW C. when any input is HIGH D. when all inputs are HIGH 10.  Give the decimal value of binary 10010. A. 610 B. 910 C. 1810 D. 2010 ANSWERS: 1. B           2.D          3.A           4.B            5.C 6.A            7.A          8.D            9.B          10.C