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Test your basic knowledge |
Digital Fundamentals
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter
ASCII
Asynchronous counter
Cascade
Capacitance
2. A connection at the midpoint of a winding in a transformer
Buffer
Center Tap
Clear
Diode
3. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Component
Decoder
Analog
Address Bus
4. To decrease the binary state of a counter by one
Boundary scan
Decrement
Data
Distributive Law
5. A interconnection of electrical components designed to produce a desired result. A basic circuits consists of a source - a load and an interconnecting current path.
Address Bus
Addend
Circuit
Boolean expression
6. One current path in a parallel circuit; a current path that connects two nodes
Astable
Base
Branch
Digital linear tape
7. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Control Unit
Associative law
Dynamic Memory
Counter
8. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
Norton's Theorem
Circuit Breaker
Amplitude
Code
9. Having two stable states. Flip- flops and latches are bistable multivibrators.
Bias
Base address
Bistable
Component
10. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points
DMA
bed- of- nails
DAT
ANSI
11. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product
Design flow
Boundary scan
Distributive Law
Base address
12. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor
Comparator
D Flip-Flop
CMOS
CPLD
13. Data Terminal equipment
Augend
DCE
Collector
DTE
14. A software compiler language for SPLD programming; a type of hardware description language (HDL)
ABEL(Advance Boolean Expression Language)
Closed circuit
Commutative Law
Concurrency
15. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
TTL
Capacity
Dual in - line package
D Flip-Flop
16. Consisting of numerals - letters - and other characters
Alphanumeric
Carry generation
Carry
Carry propagation
17. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Data bus
CPLD
ABEL(Advance Boolean Expression Language)
Commutative Law
18. Altera HDL; a nonstandard HDL
Autotransformer
AHDL
Control Unit
Circuit
19. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Bus contention
Comparator
Access time
Address
20. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.
Adder
AND
Debug
Decrement
21. The unit of electrical current
Ampere
Carry propagation
CLB (Configurable Logic Block)
Data Selector
22. An electrical instrument used to measure current
Dual in - line package
Ammeter
Combinational logic
Branch Current
23. A logic gate that produces a High output only when all of the inputs are HIGH
DSP
Kirchoff's Voltage Law
Balanced Load
AND gate
24. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Analog
Atom
Admittance
Charge- coupled device
25. Information in numeric - alphabetic - or other form.
AND gate
Dividend
Autotransformer
Data
26. Having two directions. the stored data can be shifted right or left
Bidirectional shift Register
Ammeter
bed- of- nails
Delta Modulation
27. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
CPLD
Base
Boundary scan
Dual in - line package
28. A program that converts English- like mnemonics into machine code
Capacitor
Assembler
ASCII
Attenuation
29. A circuit that prevents loading of an input or output
DAT
Buffer
CMOS
Array
30. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
Complement
Code
Data Selector
Band- stop filter
31. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Assembler
Alphanumeric
Angular Velocity
Decimal
32. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Compiler
Decrement
Binary coded decimal
Bistable
33. The graph of a filter's frequency response showing the change in the output voltage to input voltage ratio expressed in dB as a function of frequency for a constant input voltage
Amplitude
Bode Plot
Analog- to- digital converter(ADC)
ANSI
34. A condition where all the load currents are equal and the neutral current is zero
Diode
Thevenin Equivalent Circuit
Balanced Load
ASCII
35. A group of eight bits
CLB (Configurable Logic Block)
Bias
Byte
CMOS Complementary Metal Oxide Semiconductor
36. In Boolean algebra - the AND operation
Boolean multiplication
Clock
Associative law
Decade
37. One of the three regions in a bipolar junction transistor
Base
CPLD
Debug
Commutative Law
38. A number given in ampere- hours determined by multiplying the current times the length of the time (h) a battery can deliver that current to a load
Ampere- hour(Ah) rating
Boolean addition
Bias
Base address
39. The digit generated when the sum of two binary digits exceeds 1
Design flow
Bus arbitration
Carry
Bias
40. The inverse of opposite of a number - in Boolean algebra - the inverse function - expressed with a bar over the variable. The complement of a 1 is a 0 - and vice versa
DCE
TTL
Complement
Bode Plot
41. A type of IC package whose leads must pass through holes to the other side of a PC board
Acceptor
Decode
AND gate
Dual in - line package
42. A type of inductor used to block or choke off high frequencies
Choke
Decade
Alphanumeric
Bus interface unit
43. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.
Boundary scan
Control Bus
Astable
Aliasing
44. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Battery
Complement
Buffer
AHDL
45. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Binary coded decimal
Balanced Bridge
D Flip-Flop
Bleeder Current
46. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop
Clock
Don't Care...
Norton's Theorem
ASCII
47. A set of conductive paths hat connects the CPU to other parts of the computer to coordinate its operations and to communicate with external devices
Control Bus
Capacity
Ampere
Decade
48. American Standard Code for Information Interchange; the most widely used alphanumeric code.
Control Unit
Don't Care...
ASCII
Data bus
49. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.
Data Selector
Component
Decimal
Combinational logic
50. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.
Assembly language
Design flow
Analog
Band- pass filter