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This set of Digital Logic Circuits DLC Multiple Choice Questions & Answers (MCQs) focuses on Digital Logic Circuits Set 1
Q1 | Any signed negative binary number is recognised by its
- msb
- lsb
- byte
- nibble
Q2 | The parameter through which 16 distinct values can be represented is known as
- bit
- byte
- word
- nibble
Q3 | The representation of octal number (532.2)8 in decimal is
- (346.25)10
- (532.864)10
- (340.67)10
- (531.668)10
Q4 | The decimal equivalent of the binary number (1011.011)2 is
- (11.375)10
- (10.123)10
- (11.175)10
- (9.23)10
Q5 | An important drawback of binary system is
- it requires very large string of 1’s and 0’s to represent a decimal number
- it requires sparingly small string of 1’s and 0’s to represent a decimal number
- it requires large string of 1’s and small string of 0’s to represent a decimal number
- it requires small string of 1’s and large string of 0’s to represent a decimal number
Q6 | The decimal equivalent of the octal number (645)8 is
- (450)10
- (451)10
- (421)10
- (501)10
Q7 | The largest two digit hexadecimal number is
- (fe)16
- (fd)16
- (ff)16
- (ef)16
Q8 | Representation of hexadecimal number (6DE)H in decimal:
- 6 * 162 + 13 * 161 + 14 * 160
- 6 * 162 + 12 * 161 + 13 * 160
- 6 * 162 + 11 * 161 + 14 * 160
- 6 * 162 + 14 * 161 + 15 * 160
Q9 | The quantity of double word is
- 16 bits
- 32 bits
- 4 bits
- 8 bits
Q10 | What does RTL in digital circuit design stand for?
- register transfer language
- register transfer logic
- register transfer level
- resistor-transistor logic
Q11 | RTL is a design abstraction of what kind of circuit?
- asynchronous digital circuit
- synchronous digital circuit
- asynchronous sequential circuit
- analog circuit
Q12 | RTL is used in HDL to create what level of representations in the circuit?
- high-level
- low-level
- mid-level
- same level
Q13 | RTL mainly focuses on describing the flow of signals between
- logic gates
- registers
- clock
- inverter
Q14 | Which flip-flop is usually used in the implementation of the registers?
- d flip-flop
- s-r flip-flop
- t flip-flop
- j-k flip-flop
Q15 | Which of the following tool performs logic optimization?
- simulation tool
- synthesis tool
- routing tool
- rtl compiler
Q16 | Hold time is the time needed for the data to after the edge of the clock is triggered.
- decrease
- increase
- remain constant
- negate
Q17 | Simulator enters in which phase after the initialization phase?
- execution phase
- compilation phase
- elaboration phase
- simulation phase
Q18 | All input of NOR as low produces result as
- low
- mid
- high
- floating
Q19 | In RTL NOR gate, the output is at logic 1 only when all the inputs are at
- logic 0
- logic 1
- +10v
- floating
Q20 | The role of the is to convert the collector current into a voltage in RTL.
- collector resistor
- base resistor
- capacitor
- inductor
Q21 | The limitations of the one transistor RTL NOR gate are overcome by
- two-transistor rtl implementation
- three-transistor rtl implementation
- multi-transistor rtl implementation
- four-transistor rtl implementation
Q22 | The primary advantage of RTL technology was that
- it results as low power dissipation
- it uses a minimum number of resistors
- it uses a minimum number of transistors
- it operates swiftly
Q23 | The disadvantage of RTL is that
- it uses a maximum number of resistors
- it results in high power dissipation
- high noise creation
- it uses minimum number of transistors
Q24 | TTL circuits with “totem-pole” output stage minimize
- the power dissipation in rtl
- the time consumption in rtl
- the speed of transferring rate in rtl
- propagation delay in rtl
Q25 | The minimum number of transistors can be used by 2 input AND gate is
- 2
- 3
- 4
- 5