Deck 2: Understanding Diode-Transistor Logic DTL and Other Logic Families

Question 1

Diode-transistor logic (DTL) is the direct ancestor of                            

A)register-transistor logic
B)transistor-transistor logic
C)high threshold logic
D)emitter coupled logic

Answer 1

transistor-transistor logic

Question 2

In DTL logic gating function is performed by                        

A)diode
B)transistor
C)inductor
D)capacitor

Answer 2

diode

Question 3

In DTL amplifying function is performed by                        

A)diode
B)transistor
C)inductor
D)capacitor

Answer 3

transistor

Question 4

How many stages a DTL consist of?

A)2
B)3
C)4
D)5

Question 5

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

Question 6

The DTL propagation delay is relatively                        

A)large
B)small
C)moderate
D)negligible

Question 7

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

A)small "speed-up" capacitor
B)large "speed-up" capacitor
C)small "speed-up" transistor
D)large " speed-up" transistor

Question 8

The process to avoid saturating the switching transistor is performed by                        

A)baker clamp
B)james r. biard
C)chris brown
D)totem-pole

Question 9

A major advantage of DTL over the earlier resistor-transistor logic is the                        

A)increased fan out
B)increased fan in
C)decreased fan out
D)decreased fan in

Question 10

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

Question 11

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

Question 12

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

Question 13

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

A)compatibility
B)interface
C)sourcing
D)sinking

Question 14

The first CML logic was introduced by General Electric in                        

A)1960
B)1981
C)1961
D)1990

Question 15

Schottky families prevent the saturating using                        

A)transistors
B)schottky transistors
C)diodes
D)schottky diodes

Question 16

The basic idea of basic CML circuit came from an                        

A)inverter
B)buffer
C)transistor
D)both inverter and buffer

Question 17

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

Question 18

Motorola has offered MECL circuits in logic families.

A)3
B)4
C)5
D)6

Question 19

The latest entrant to the ECL family is                        

A)ecl 10k
B)ecl 100k
C)ecl 1000k
D)ecl 10000k

Question 20

All input of NOR as low produces result as                        

A)low
B)mid
C)high
D)high impedance

Question 21

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

Question 22

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

Question 23

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

Question 24

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

Question 25

CMOS technology is used in                          

A)inverter
B)microprocessor
C)digital logic
D)both microprocessor and digital logic