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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 logic circuit used to add two binary numbers
Antifuse
Adder
Charge- coupled device
Bus interface unit
2. The actual current in a branch
Branch Current
Dynamic Memory
CMOS
Dividend
3. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Control Unit
Circuit Breaker
Charge
Binary coded decimal
4. The VHDL unit that describes the internal operation of a logic function; the internal functional arrangement of the elements that give a device its particular operating characteristics.
Architecture
Aliasing
Dividend
Attenuation
5. 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
Compiler
Decade Counter
Angular Velocity
6. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program
Antifuse
D Flip-Flop
Atom
Carry generation
7. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
Apparent power
Bleeder Current
Capacity
Band- stop filter
8. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Carry propagation
Capacitance Reactance
Average value
AND gate
9. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Admittance
Byte
Thevenin Equivalent Circuit
Commutative Law
10. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions
Bipolar
Bleeder Current
Central processing unit
Analog- to- digital (A/D) conversion
11. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Battery
Buffer
Closed circuit
Asynchronous counter
12. A set of interconnections that interface one or more devices based on a standardized specification
Bus
DIMM
Duty cycle
Carry generation
13. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Collector
Comparator
Aliasing
Boolean algebra
14. A transformer in which the primary and secondary are in a single winding
Dividend
Autotransformer
Average value
Circuit
15. A digital counter having ten states
Atom
Decade Counter
Comparator
Circuit
16. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Decimal
Band- pass filter
Address Bus
ANSI
17. 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
DRAM
ABEL(Advance Boolean Expression Language)
Bit
18. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
Aliasing
D Flip-Flop
Band- stop filter
AND
19. The action of a circuit in which it accepts current into its output from a load
Bistable
Bus arbitration
Current sinking
Assembly language
20. The mathematics of logic circuits
Boolean algebra
Central processing unit
Atom
Boolean addition
21. In Boolean algebra - the OR operation
DRAM
Attenuation
Design flow
Boolean addition
22. 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.
Counter
Atom
Address
Bandwidth
23. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Bipolar
Cascade
Band- pass filter
Counter
24. Information in numeric - alphabetic - or other form.
AND gate
Data
Boolean multiplication
Bit
25. Bipolar junction transistor; a semiconductor device used for switching or amplification. A BJT has two junctions - the base- emitter junction and the base- collector junction
Boolean addition
Amplitude
BJT
Branch Current
26. The process of converting an analog signal to digital form
Bleeder Current
Analog- to- digital (A/D) conversion
DRAM
BJT
27. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Admittance
Central processing unit
Complement
Autotransformer
28. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
29. A class of integrated logic circuits that is implemented with a type of field effect transistor
Control Unit
Balanced Load
CMOS Complementary Metal Oxide Semiconductor
Data Selector
30. Having two stable states. Flip- flops and latches are bistable multivibrators.
Bistable
Antifuse
AND array
Capacity
31. The process or sequence of operations carried out to program a target device
Bus
Battery
ANSI
Design flow
32. A binary digit - which can be either 1 or 0
Bias
Data Selector
Current sinking
Bit
33. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Charge
Bus interface unit
Distributive Law
TTL
34. The unit of electrical current
Clear
Ampere
BIOS
Current sinking
35. A type of inductor used to block or choke off high frequencies
Capacitor
Battery
Compiler
Choke
36. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
BIOS
Duty cycle
Dependency notation
Band- stop filter
37. An expression of variables and operators used to express the operation of a logic circuit
Amplitude
Dependency notation
Data
Boolean expression
38. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative
Bitstream
Bidirectional shift Register
Counter
Charge
39. The process that prevents two sources from using a bus at the same time
Bus arbitration
Bit time
Analog- to- digital (A/D) conversion
Dual in - line package
40. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence
Capacitance
Demultiplexer
Amplitude
Augend
41. An application program in development software packages that controls the design flow process and translates source code into object code in a format that can be logically tested or downloaded to a target device
Center Tap
Thevenin Equivalent Circuit
Adder
Compiler
42. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
AWG
Bus arbitration
Bode Plot
Thevenin Equivalent Circuit
43. One current path in a parallel circuit; a current path that connects two nodes
Data
AHDL
D Flip-Flop
Branch
44. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Bit time
Bit
Decimal
Assembler
45. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
DIMM
Carry generation
Amplitude
Base
46. 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.
AND array
Decade
Dependency notation
Circuit
47. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Circuit
Debug
Dynamic Memory
Capacitance Reactance
48. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Charge- coupled device
Bus contention
Boolean expression
Baseline
49. Stands for Complementary Metal-Oxide Semiconductor and is implemented with a type of field transistor
AWG
CMOS
Acceptor
Battery
50. The current left after the total load current is subtracted from the total current into the circuit
Bleeder Current
Kirchoff's Current Law(KCL)
Distributive Law
Charge- coupled device