358 + Mcqs in Digital Logic Circuits Page 7 McqOptions

301.	In an ECL the output is taken from
A.	emitter
B.	base
C.	collector
D.	junction of emitter and base
Answer» D. junction of emitter and base

Discussion

302.	Which logic is the fastest of all the logic families?
A.	ttl
B.	ecl
C.	htl
D.	dtl
Answer» C. htl

Discussion

303.	Sometimes ECL can also be named as
A.	eel
B.	cel
C.	cml
D.	ccl
Answer» D. ccl

Discussion

304.	The full form of ECL is
A.	emitter-collector logic
B.	emitter-complementary logic
C.	emitter-coupled logic
D.	emitter-cored logic
Answer» D. emitter-cored logic

Discussion

305.	Which chip were the first RTC and CMOS RAM chip to be used in early IBM computers, capable of storing a total of 64 bytes?
A.	the samsung 146818
B.	the samsung 146819
C.	the motorola 146818
D.	the motorola 146819
Answer» D. the motorola 146819

Discussion

306.	Semiconductors are made of
A.	ge and si
B.	si and pb
C.	ge and pb
D.	pb and au
Answer» B. si and pb

Discussion

307.	CMOS logic dissipates power than NMOS logic circuits.
A.	more
B.	less
C.	equal
D.	very high
Answer» C. equal

Discussion

308.	An important characteristic of a CMOS circuit is the
A.	noise immunity
B.	duality
C.	symmetricity
D.	noise margin
Answer» C. symmetricity

Discussion

309.	CMOS behaves as a/an
A.	adder
B.	subtractor
C.	inverter
D.	comparator
Answer» D. comparator

Discussion

310.	CMOS technology is used in
A.	inverter
B.	microprocessor
C.	digital logic
D.	both microprocessor and digital logic
Answer» E.

Discussion

311.	Two important characteristics of CMOS devices are
A.	high noise immunity
B.	low static power consumption
C.	high resistivity
D.	both high noise immunity and low static power consumption
Answer» E.

Discussion

312.	CMOS is also sometimes referred to as
A.	capacitive metal oxide semiconductor
B.	capacitive symmetry metal oxide semiconductor
C.	complementary symmetry metal oxide semiconductor
D.	complemented symmetry metal oxide semiconductor
Answer» D. complemented symmetry metal oxide semiconductor

Discussion

313.	The full form of COS-MOS is
A.	complementary symmetry metal oxide semiconductor
B.	complementary systematic metal oxide semiconductor
C.	capacitive symmetry metal oxide semiconductor
D.	complemented systematic metal oxide semiconductor
Answer» B. complementary systematic metal oxide semiconductor

Discussion

314.	The full form of CMOS is
A.	capacitive metal oxide semiconductor
B.	capacitive metallic oxide semiconductor
C.	complementary metal oxide semiconductor
D.	complemented metal oxide semiconductor
Answer» D. complemented metal oxide semiconductor

Discussion

315.	The latest entrant to the ECL family is
A.	ecl 10k
B.	ecl 100k
C.	ecl 1000k
D.	ecl 10000k
Answer» C. ecl 1000k

Discussion

316.	Motorola has offered MECL circuits in logic families.
A.	3
B.	4
C.	5
D.	6
Answer» D. 6

Discussion

317.	The full form of MECL is
A.	mono emitter coupled logic
B.	motorola emitter coupled logic
C.	motorola emitter capacitor logic
D.	both mono emitter and motorola coupled logic
Answer» C. motorola emitter capacitor logic

Discussion

318.	The basic idea of basic CML circuit came from an
A.	inverter
B.	buffer
C.	transistor
D.	both inverter and buffer
Answer» E.

Discussion

319.	Schottky families prevent the saturating using
A.	transistors
B.	schottky transistors
C.	diodes
D.	schottky diodes
Answer» E.

Discussion

320.	The first CML logic was introduced by General Electric in
A.	1960
B.	1981
C.	1961
D.	1990
Answer» D. 1990

Discussion

321.	The method of connecting a driving device to a loading device is known as
A.	compatibility
B.	interface
C.	sourcing
D.	sinking
Answer» C. sourcing

Discussion

322.	Compatibility refers to
A.	the output of a circuit should match with the input of another circuit
B.	the output of a circuit should match with the input of the same circuit
C.	the input of a circuit should match with the output of another circuit
D.	the input of a circuit should match with the output of same circuit
Answer» B. the output of a circuit should match with the input of the same circuit

Discussion

323.	A disadvantage of DTL is
A.	the input transistor to the resister
B.	the input resister to the transistor
C.	the increased fan-in
D.	the increased fan-out
Answer» C. the increased fan-in

Discussion

324.	To increase fan-out of the gate in DTL
A.	an additional capacitor may be used
B.	an additional resister may be used
C.	an additional transistor and diode may be used
D.	only an additional diode may be used
Answer» D. only an additional diode may be used

Discussion

325.	A major advantage of DTL over the earlier resistorâ€“transistor logic is the
A.	increased fan out
B.	increased fan in
C.	decreased fan out
D.	decreased fan in
Answer» C. decreased fan out

Discussion

326.	The process to avoid saturating the switching transistor is performed by
A.	baker clamp
B.	james r. biard
C.	chris brown
D.	totem-pole
Answer» B. james r. biard

Discussion

327.	The way to speed up DTL is to add an across intermediate resister is
A.	small â€œspeed-upâ€ capacitor
B.	large â€œspeed-upâ€ capacitor
C.	small â€œspeed-upâ€ transistor
D.	large â€ speed-upâ€ transistor
Answer» B. large â€œspeed-upâ€ capacitor

Discussion

328.	The full form of CTDL is
A.	complemented transistor diode logic
B.	complemented transistor direct logic
C.	complementary transistor diode logic
D.	complementary transistor direct logic
Answer» B. complemented transistor direct logic

Discussion

329.	The DTL propagation delay is relatively
A.	large
B.	small
C.	moderate
D.	negligible
Answer» B. small

Discussion

330.	How many stages a DTL consist of?
A.	2
B.	3
C.	4
D.	5
Answer» C. 4

Discussion

331.	In DTL amplifying function is performed by
A.	diode
B.	transistor
C.	inductor
D.	capacitor
Answer» C. inductor

Discussion

332.	In DTL logic gating function is performed by
A.	diode
B.	transistor
C.	inductor
D.	capacitor
Answer» B. transistor

Discussion

333.	Diodeâ€“transistor logic (DTL) is the direct ancestor of
A.	register-transistor logic
B.	transistorâ€“transistor logic
C.	high threshold logic
D.	emitter coupled logic
Answer» C. high threshold logic

Discussion

334.	The minimum number of transistors can be used by 2 input AND gate is
A.	2
B.	3
C.	4
D.	5
Answer» B. 3

Discussion

335.	TTL circuits with â€œtotem-poleâ€ output stage minimize
A.	the power dissipation in rtl
B.	the time consumption in rtl
C.	the speed of transferring rate in rtl
D.	propagation delay in rtl
Answer» B. the time consumption in rtl

Discussion

336.	The disadvantage of RTL is that
A.	it uses a maximum number of resistors
B.	it results in high power dissipation
C.	high noise creation
D.	it uses minimum number of transistors
Answer» C. high noise creation

Discussion

337.	The limitations of the one transistor RTL NOR gate are overcome by
A.	two-transistor rtl implementation
B.	three-transistor rtl implementation
C.	multi-transistor rtl implementation
D.	four-transistor rtl implementation
Answer» D. four-transistor rtl implementation

Discussion

338.	The primary advantage of RTL technology was that
A.	it results as low power dissipation
B.	it uses a minimum number of resistors
C.	it uses a minimum number of transistors
D.	it operates swiftly
Answer» D. it operates swiftly

Discussion

339.	The role of the is to convert the collector current into a voltage in RTL.
A.	collector resistor
B.	base resistor
C.	capacitor
D.	inductor
Answer» B. base resistor

Discussion

340.	All input of NOR as low produces result as
A.	low
B.	mid
C.	high
D.	floating
Answer» D. floating

Discussion

341.	Simulator enters in which phase after the initialization phase?
A.	execution phase
B.	compilation phase
C.	elaboration phase
D.	simulation phase
Answer» B. compilation phase

Discussion

342.	Hold time is the time needed for the data to after the edge of the clock is triggered.
A.	decrease
B.	increase
C.	remain constant
D.	negate
Answer» D. negate

Discussion

343.	Which of the following tool performs logic optimization?
A.	simulation tool
B.	synthesis tool
C.	routing tool
D.	rtl compiler
Answer» C. routing tool

Discussion

344.	In RTL NOR gate, the output is at logic 1 only when all the inputs are at
A.	logic 0
B.	logic 1
C.	+10v
D.	floating
Answer» B. logic 1

Discussion

345.	Which flip-flop is usually used in the implementation of the registers?
A.	d flip-flop
B.	s-r flip-flop
C.	t flip-flop
D.	j-k flip-flop
Answer» B. s-r flip-flop

Discussion

346.	RTL mainly focuses on describing the flow of signals between
A.	logic gates
B.	registers
C.	clock
D.	inverter
Answer» C. clock

Discussion

347.	RTL is used in HDL to create what level of representations in the circuit?
A.	high-level
B.	low-level
C.	mid-level
D.	same level
Answer» B. low-level

Discussion

348.	RTL is a design abstraction of what kind of circuit?
A.	asynchronous digital circuit
B.	synchronous digital circuit
C.	asynchronous sequential circuit
D.	analog circuit
Answer» C. asynchronous sequential circuit

Discussion

349.	What does RTL in digital circuit design stand for?
A.	register transfer language
B.	register transfer logic
C.	register transfer level
D.	resistor-transistor logic
Answer» D. resistor-transistor logic

Discussion

350.	The quantity of double word is
A.	16 bits
B.	32 bits
C.	4 bits
D.	8 bits
Answer» C. 4 bits

Discussion

Explore topic-wise MCQs in Computer Science Engineering (CSE).

In an ECL the output is taken from

Which logic is the fastest of all the logic families?

Sometimes ECL can also be named as

The full form of ECL is

Which chip were the first RTC and CMOS RAM chip to be used in early IBM computers, capable of storing a total of 64 bytes?

Semiconductors are made of

CMOS logic dissipates power than NMOS logic circuits.

An important characteristic of a CMOS circuit is the

CMOS behaves as a/an

CMOS technology is used in

Two important characteristics of CMOS devices are

CMOS is also sometimes referred to as

The full form of COS-MOS is

The full form of CMOS is

The latest entrant to the ECL family is

Motorola has offered MECL circuits in logic families.

The full form of MECL is

The basic idea of basic CML circuit came from an

Schottky families prevent the saturating using

The first CML logic was introduced by General Electric in

The method of connecting a driving device to a loading device is known as

Compatibility refers to

A disadvantage of DTL is

To increase fan-out of the gate in DTL

A major advantage of DTL over the earlier resistorâ€“transistor logic is the

The process to avoid saturating the switching transistor is performed by

The way to speed up DTL is to add an across intermediate resister is

The full form of CTDL is

The DTL propagation delay is relatively

How many stages a DTL consist of?

In DTL amplifying function is performed by

In DTL logic gating function is performed by

Diodeâ€“transistor logic (DTL) is the direct ancestor of

The minimum number of transistors can be used by 2 input AND gate is

TTL circuits with â€œtotem-poleâ€ output stage minimize

The disadvantage of RTL is that

The limitations of the one transistor RTL NOR gate are overcome by

The primary advantage of RTL technology was that

The role of the is to convert the collector current into a voltage in RTL.

All input of NOR as low produces result as

Simulator enters in which phase after the initialization phase?

Hold time is the time needed for the data to after the edge of the clock is triggered.

Which of the following tool performs logic optimization?

In RTL NOR gate, the output is at logic 1 only when all the inputs are at

Which flip-flop is usually used in the implementation of the registers?

RTL mainly focuses on describing the flow of signals between

RTL is used in HDL to create what level of representations in the circuit?

RTL is a design abstraction of what kind of circuit?

What does RTL in digital circuit design stand for?

The quantity of double word is

TTL circuits with â€œtotem-poleâ€ output stage minimize