Question is ⇒ The series 54 H/74 H denotes, Options are ⇒ (A) Standard TTL, (B) High speed TTL, (C) Low Power TTL, (D) High Power TTL, (E) , Leave your comments or Download question paper.

Question is ⇒ The series 54 H/74 H denotes, Options are ⇒ (A) Standard TTL, (B) High speed TTL, (C) Low Power TTL, (D) High Power TTL, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The series 54 H/74 H denotes
A.	Standard TTL [Wrong Answer]
B.	High speed TTL [Correct Answer]
C.	Low Power TTL [Wrong Answer]
D.	High Power TTL [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ If a driving point function N(s) = p(s)/q(s), then
the terms of lowest degree in p(s) and q(s) may differ in degree by zero only
the terms of lowest degree in p(s) and q(s) may differ by one at the most
the terms of lowest degree in p(s) and q(s) may differ in degree by two at the most
the terms of lowest degree in p(s) and q(s) may differ in degree by three at the most

⇒ Human body cannot sustain electric current beyond
1 μA
10 μA
5 μA
35 μA

⇒ In a bipolar transistor
the base is thick and highly doped
the base is thin and highly doped
the base is thick and lightly doped
the base is thin and lightly doped

⇒ In a medium if ε, μ and σ are constant throughout the medium, then it is known as
perfect vacuum
distributed medium
homogeneous medium
dielectric medium

⇒ In a digital system, the maximum clock frequency that can be used with Master/Slave Clocked flip-flops having total propagation delay of 200 μsec is
20 MHz
50 MHz
100 MHz
200 MHz

⇒ A two stage amplifier has an upper cutoff frequency of 2 MHz and a lower cutoff frequency of 2 MHz and a lower cut off frequency of 30 Hz. If both stages are similar, their individual upper and lower cut off frequencies respectively are
4 MHz and 60 MHz
3 MHz and 20 Hz
3 MHz and 60 Hz
4 MHz and 20 Hz

⇒ A system has 12 poles or 2 zeros. Its high frequency asymptote in its magnitude plot has slope of
-200 dB/decade
-240 dB/decade
-280 dB/decade
-320 dB/decade

⇒ Which of the following are useful in comparing the noise performance of receivers?

Input noise voltage
Noise figure
Noise resistance
Noise temperature

Select answer as per the following codes:
1, 2 and 3
1, 3 and 4
2, 3, 4
1, 2, 4

⇒ In a FM receiver, amplitude limiter
amplifiers low frequency signals
reduces the amplitude of signals
eliminates any change in amplitude of received FM signals
none of the above

⇒ The process of extension of a single-crystal surface by growing a film in such a way that the added atoms form a continuation of the single-crystal structure is called
Ion implantation
Chemical vapour deposition
Electroplating
Epitaxy

⇒ A voltage v = 5 + 50 sin ωt/ + 5 sin 5 &omegat is applied to a pure capacitor of capacitance 1 ωF. If f/= 314 rad/sec, current is
1 + 0.0157 cos 314 t + 0.00785 cos 1570 t
0.0157 cos 314 t + 0.00785 cos 1570 t
0.0157 sin 314 t + 0.00785 sin 1570 t
0.0157 sin (314 t / + 45°) + 0.00785 sin (1570 t + 45°)

⇒ Noise which assumes great importance at high frequencies is
flicker noise
Johnson noise
transit-time noise
shot noise

⇒ In figure, I_C &as
I₁
I_B
0.5 I₁
0.5 I_B

⇒ In intrinsic semiconductors, the number of free electrons is equal to the number of mobile holes.
TRUE
FALSE

⇒ A p-n junction diode has
low forward and high reverse resistance
a non-linear v-i characteristics
zero forward current till the forward voltage reaches cut in value
all of the above

⇒ Δ²V = - r/E is known as __________ equation
Poisson
Fourier
Laplace
Maxwell

⇒ The image frequency of a superheterodyne receiver is
created within the receiver itself
not rejected by IF tuned circuits
independent of the frequency of tuning
due to insufficient adjacent channel rejection

⇒ The network of the given figure
lag network
lead network
lag-lead network
any of the above

⇒ Fourier transform of signal obtained after taking difference between step function and its reverse version is given as __________ .
2jω
2/jω
4/jω
4jω

⇒ For decimal numbe'r 13.5, the floating point representation in 4 byte excess 128 code is
01101100 00000000 00000000 10000100
00000000 01101100 00000000 10000100
00000000 01101100 10000100 00000000
01101100 00000000 10000100 00000000

⇒

Assertion (A): In some materials, ∈_r is independent of temperature while in others, ∈_r depends on temperature.

Reason (R): If permanent dipoles are absent, ∈_r varies with temperature.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true

⇒

Assertion (A): A large negative feedback is deliberately introduced in an amplifier to make its gain independent of variation is in parameters of active device and other components.

Reason (R): A large negative feedback results in a high value of return difference compared to unity which makes the feedback gain inversely proportional to feedback factor.

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct

⇒ The impedance of a coil above self-resonant frequency is
inductive
capacitive
resistive
none

⇒

Assertion (A): Operator has a value 1 ∠ - 90° or 1 ∠ 90°.

Reason (R): Operator 'a' has a value 1 ∠ 120°.

Both A and R are true and R is correct explanation of A
Both A and R are true and R is not the correct explanation of A
A is true but R is false
A is false but R is true

⇒ Two thyristor of same rating and same specifications
will have equal turn on and turn off periods
will have equal turn on but unequal turn off periods
may have equal or unequal turn on and turn off periods
will have unequal turn on and turn off periods

⇒ A thermometer requires 1 minute to indicate 98% of its final response to a step input. If it is a first order system the time constant is
1 minute
0.5 minute
0.25 minute
0.1 minute

⇒ The effect of lead resistance is important in measurement of
resistance of shunt
resistance of shunt winding
resistance of ammeter
both (a) and (c)

⇒ The velocity factor of a transmission line
mainly depends on the skin effect
is always higher for a solid dielectric than for air
mainly depends on the dielectric constant of the material used
increases the velocity along the transmission line

⇒ If it is desired to have low output impedance in an amplifier circuit then we should use
common collector circuit
common base circuit
common emitter circuit
either (b) or (c)

⇒

Match the following:

	List I		List II
A.	45	1.	10110100
B.	90	2.	11010010
C.	180	3.	01011010
D.	210	4.	00101101
		5.	10101000

A-3, B-4, C-5, D-2
A-4, B-3, C-5, D-2
A-4, B-3, C-1, D-2
A-3, B-4, C-2, D-1