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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. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic
Boolean multiplication
ALU
Combinational logic
Carry propagation
2. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
D Flip-Flop
Decoder
Duty cycle
Thevenin Equivalent Circuit
3. In a division operation the quantity that is being divided
Clock
Dividend
Kirchoff's Voltage Law
Counter
4. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
Decode
Acceptor
Combinational logic
Bandwidth
5. A logic gate that produces a High output only when all of the inputs are HIGH
AND gate
Compiler
Boundary scan
Charge- coupled device
6. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Clear
Decoder
Commutative Law
DIMM
7. The range of frequencies for which the current (or output voltage) is equal to or greater than 70.7% of its value at the resonant frequency that is considered to be passed by a filter.
Bandwidth
Clear
Dividend
Assembler
8. A set of interconnections that interface one or more devices based on a standardized specification
Balanced Bridge
Circuit
Bus
Complement
9. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Buffer
Binary coded decimal
Data Sheet
Baseline
10. 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
Bode Plot
AND gate
Angular Velocity
Capacitance
11. The process of producing an output carry in full- adder when both input bits are 1s.
DCE
Decimal
Carry generation
Astable
12. A circuit with a complete current path
Bipolar
Duty cycle
Closed circuit
Carry propagation
13. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Bus interface unit
ASCII
Demultiplexer
Baseline
14. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Autotransformer
Decade
Data Selector
TTL
15. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.
DMA
Astable
Boolean addition
Decade Counter
16. Digital audio tape; a type of magnetic tape format
Addend
DAT
Clock
Boolean multiplication
17. 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.
Band- pass filter
Alphanumeric
Capacitance
Circuit
18. A digital counter having ten states
Data Sheet
Decade Counter
Duty cycle
Dividend
19. A condition where all the load currents are equal and the neutral current is zero
Decode
Control Bus
Balanced Load
Ampere
20. A connection at the midpoint of a winding in a transformer
Boolean addition
Branch
Dynamic Memory
Center Tap
21. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Access time
Bit time
Autotransformer
Charge- coupled device
22. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.
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23. The process of converting an analog signal to digital form
Component
Decimal
Analog- to- digital (A/D) conversion
Asynchronous counter
24. A reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.
Bleeder Current
Bus interface unit
AWG
Attenuation
25. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
Assembler
Boundary scan
Aliasing
AHDL
26. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Battery
Comparator
DTE
Norton's Theorem
27. Having two stable states. Flip- flops and latches are bistable multivibrators.
CLB (Configurable Logic Block)
Carry generation
Antifuse
Bistable
28. An electrical instrument used to measure current
Ammeter
Astable
Adder
AHDL
29. Sum of all the voltage drops in series equals to the source voltage
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30. An expression of variables and operators used to express the operation of a logic circuit
DSP
Demultiplexer
Boolean expression
Diode
31. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
Binary coded decimal
Autotransformer
Charge- coupled device
DRAM
32. In addition - the number that is added to another number called the augend
AHDL
Addend
Bidirectional shift Register
Bitstream
33. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits
Asynchronous counter
Decrement
Band- pass filter
Binary
34. A transformer in which the primary and secondary are in a single winding
Data bus
Decimal
Autotransformer
Circuit Breaker
35. 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
Cascade
Base
Cross - assembler
Addend
36. A bridge circuit that is in the balanced state as indicated by 0 V across the output.
Baseline
DSP
Binary coded decimal
Balanced Bridge
37. The process or sequence of operations carried out to program a target device
Design flow
Cache memory
Analog- to- digital converter(ADC)
AWG
38. The digit generated when the sum of two binary digits exceeds 1
Analog- to- digital (A/D) conversion
Carry
Data
Bode Plot
39. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Capacitance Reactance
Decimal
Code
Assembler
40. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Boolean algebra
Battery
AWG
Decoder
41. Having two opposites charge carriers within the transistor structure
Bipolar
Base address
Baseline
Bleeder Current
42. 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
Amplitude
Complement
Circuit Breaker
Adder
43. A type of inductor used to block or choke off high frequencies
Cache memory
Choke
DCE
Delta Modulation
44. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit
Apparent power
Bus contention
Vx=(Vs * Rx) /RT
Circuit
45. American Standard Code for Information Interchange; the most widely used alphanumeric code.
Aliasing
Byte
ASCII
Augend
46. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
AND
BEDO DRAM
Analog- to- digital (A/D) conversion
Adder
47. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Decimal
Vx=(Vs * Rx) /RT
DIMM
Cache memory
48. A class of integrated logic circuits that is implemented with a type of field effect transistor
CMOS Complementary Metal Oxide Semiconductor
ANSI
Amplitude
Circuit Breaker
49. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
Center Tap
Array
BIOS
AND
50. Direct memory access; a method to directly interface a peripheral device to memory without using the CPU for control
Dynamic Memory
Decimal
DMA
Controller