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Which of the following is 'synchronous'? | |
A. | Half adder [Wrong Answer] |
B. | Full adder [Wrong Answer] |
C. | R-S flip-flop [Wrong Answer] |
D. | Clocked R-S flip-flop [Correct Answer] |
View Answer
Explanation:-
Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ A load commutated chopper circuit has
one thyristor
two thyristors
four thyristors
six thyristors
⇒ Which of the following theorems can be conveniently used to find power consumed in 10 Ω resistor in fig
Thevenin theorem
Maximum power transfer theorem
Millman's theorem
Superposition theorem
⇒ When a binary adder is used as BCD adder, the sum is
correct when it is < 9
correct when it is > 9
correct when it is < 16
none of these
⇒ In Quine-Mclusky method of Boolean function reduction; __________ , are treated as __________ and therefore discrepancies may occur in the final solution, therefore this method is not applicable to the functions with __________ .
zeros, don't care conditions, zeros
one's, don't care conditions, one's
don't care conditions, zeros, don't care conditions
don't care conditions, don't care conditions, don't care conditions
⇒ Fourier transform of f(t) =
jω F(f)
2pf F(f)
F'(f)
None
⇒ Which of the following circuits cannot be demodulate SSB?
Product detector
Balanced modulator
Phase discriminator
BFO
⇒ In figure, capacitor is uncharged. The switch is closed at t = 0 at t = 0^{+} di/dt100 A/s
-100 A/s
1000 A/s
-1000 A/s
⇒ The output frequency of a cycloconverter can be changed by changing the firing angle.
TRUE
FALSE
⇒ A plane EM wave is travelling in an unbound loss less dielectric having μ_{y} = 1 and ε_{y} = 4, the time average Poynting vector of the wave is 5 W/m^{3} . The phase velocity v_{p} (assuming velocity of light as 3 x 10^{8} m/sec) is
1.5 x 10^{8} m/sec
3 x 10^{8} m/sec
2.5 x 10^{8} m/sec
0.5 x 10^{8} m/sec
⇒ In 8085 microprocessor, how many lines are there in data bus?
6
8
2
16
⇒ Read the following statements about files in Pascal
All
1, 2, 3 only
2, 3, 4 only
1, 2 and 4 only
⇒ In the spectrum of an FM wave
When modulation index is large, carrier frequency disappears
carrier frequency cannot disappear
amplitude of any side band depends on modulation index
the total number of side bands depend on modulation index
⇒ In a single phase full wave converter (M - 2 connection) feeding a highly inductive load, the firing angle for each thyristor is a in the respective half cycle. The period of conduction of each thyristor is
p - a
p
p + a
p - 2a
⇒ In a series RLC circuit the phase angle θ of impedance Z ∠θ is positive. The circuit will behave as
resistive circuit
RC circuit
RL circuit
either RL or RC circuit
⇒ In a semi converter feeding a resistive load,
the waveshapes of input voltage and input current are always similar
the waveshapes of input voltage and input current can never be similar
the waveshapes of input voltage and input current are similar only if firing angle is zero
the waveshapes of input voltage and input current are similar only if firing angle is high
⇒ Which of the following expressions may be used to correctly describe the temperature (T) variation of the intrinsic carrier density (n_{i}) of a semiconductor?
n_{i}(T) = (A/T) exp (- E_{8}/kT^{2})
n_{i}(T) = A (- E_{8}/2kT)^{10}
n_{i}(T) = A exp (- E_{8}/2kT^{2})
n_{i}(T) = AT^{3/2} exp (-E_{8}/2kT)
⇒ The time base of a high frequency CRO whose screen diameter is 10 cm is set at 10 μ sec/cm. The lowest frequency which can be fully displayed on the screen is
more than 100 kHz
equal to 100 kHz
equal to 10 kHz
less than 10 kHz
⇒ In 8085 microprocessor, even after a Reset operation which of the following interrupts remains enabled?
INTR
RST 5.5
RST 7.5
TRAP
⇒ If the resolution of a printer is 1200 dpi, the number of dots per square inch is
1200
800
1200 x 1200
either (a) or (b)
⇒ Why npn-transistors are preferred over pnp-transistors?
Leakage current in npn-transistors is less than pnp-transistors
Mobility of majority carrier in npra-transistors is greater than the mobility of majority carrier in pnp-transistors
Bias voltage required in npn is less than in/wp-transistors
Bias voltage required in npn is greater than in pnp-transistors
⇒ According to maximum power transfer theorem, if the load is inductive, the source should be
inductive
capacitive
resistive
any of the above
⇒ Zener diode is invariably used with
forward bias
reverse bias
either (a) or (b)
zero bias
⇒
3 only
2 and 3 only
1 and 3 only
2 only
⇒ In the state equation x = AX + Bu is a n x m matrix.
TRUE
FALSE
⇒ In a single phase semi-converter the number of thyristors is
16
8
4
2
⇒ Figure sho
bipolar transistor
JFET
p-channel MOSFET
n-channel enhancement MOSFET
⇒ If operator 'a' = 1 ∠120° then (1 + a + a^{2}) =
-a
-a^{2}
1
0
⇒ A load commutated chopper circuit has
one thyristor
two thyristors
four thyristors
six thyristors
⇒ Which of the following theorems can be conveniently used to find power consumed in 10 Ω resistor in fig
Thevenin theorem
Maximum power transfer theorem
Millman's theorem
Superposition theorem
⇒ When a binary adder is used as BCD adder, the sum is
correct when it is < 9
correct when it is > 9
correct when it is < 16
none of these
⇒ In Quine-Mclusky method of Boolean function reduction; __________ , are treated as __________ and therefore discrepancies may occur in the final solution, therefore this method is not applicable to the functions with __________ .
zeros, don't care conditions, zeros
one's, don't care conditions, one's
don't care conditions, zeros, don't care conditions
don't care conditions, don't care conditions, don't care conditions
⇒ Fourier transform of f(t) =
jω F(f)
2pf F(f)
F'(f)
None
⇒ Which of the following circuits cannot be demodulate SSB?
Product detector
Balanced modulator
Phase discriminator
BFO
⇒ In figure, capacitor is uncharged. The switch is closed at t = 0 at t = 0^{+} di/dt100 A/s
-100 A/s
1000 A/s
-1000 A/s
⇒ The output frequency of a cycloconverter can be changed by changing the firing angle.
TRUE
FALSE
⇒ A plane EM wave is travelling in an unbound loss less dielectric having μ_{y} = 1 and ε_{y} = 4, the time average Poynting vector of the wave is 5 W/m^{3} . The phase velocity v_{p} (assuming velocity of light as 3 x 10^{8} m/sec) is
1.5 x 10^{8} m/sec
3 x 10^{8} m/sec
2.5 x 10^{8} m/sec
0.5 x 10^{8} m/sec
⇒ In 8085 microprocessor, how many lines are there in data bus?
6
8
2
16
⇒ Read the following statements about files in Pascal
- A file can grow or shrink dynamically.
- A file which consists of only characters is called text file.
- Text files may be read and written using standard Pascal READ and WRITE procedures.
- Every file must have a beginning but may or may not have an end.
All
1, 2, 3 only
2, 3, 4 only
1, 2 and 4 only
⇒ In the spectrum of an FM wave
When modulation index is large, carrier frequency disappears
carrier frequency cannot disappear
amplitude of any side band depends on modulation index
the total number of side bands depend on modulation index
⇒ In a single phase full wave converter (M - 2 connection) feeding a highly inductive load, the firing angle for each thyristor is a in the respective half cycle. The period of conduction of each thyristor is
p - a
p
p + a
p - 2a
⇒ In a series RLC circuit the phase angle θ of impedance Z ∠θ is positive. The circuit will behave as
resistive circuit
RC circuit
RL circuit
either RL or RC circuit
⇒ In a semi converter feeding a resistive load,
the waveshapes of input voltage and input current are always similar
the waveshapes of input voltage and input current can never be similar
the waveshapes of input voltage and input current are similar only if firing angle is zero
the waveshapes of input voltage and input current are similar only if firing angle is high
⇒ Which of the following expressions may be used to correctly describe the temperature (T) variation of the intrinsic carrier density (n_{i}) of a semiconductor?
n_{i}(T) = (A/T) exp (- E_{8}/kT^{2})
n_{i}(T) = A (- E_{8}/2kT)^{10}
n_{i}(T) = A exp (- E_{8}/2kT^{2})
n_{i}(T) = AT^{3/2} exp (-E_{8}/2kT)
⇒ The time base of a high frequency CRO whose screen diameter is 10 cm is set at 10 μ sec/cm. The lowest frequency which can be fully displayed on the screen is
more than 100 kHz
equal to 100 kHz
equal to 10 kHz
less than 10 kHz
⇒ In 8085 microprocessor, even after a Reset operation which of the following interrupts remains enabled?
INTR
RST 5.5
RST 7.5
TRAP
⇒ If the resolution of a printer is 1200 dpi, the number of dots per square inch is
1200
800
1200 x 1200
either (a) or (b)
⇒ Why npn-transistors are preferred over pnp-transistors?
Leakage current in npn-transistors is less than pnp-transistors
Mobility of majority carrier in npra-transistors is greater than the mobility of majority carrier in pnp-transistors
Bias voltage required in npn is less than in/wp-transistors
Bias voltage required in npn is greater than in pnp-transistors
⇒ According to maximum power transfer theorem, if the load is inductive, the source should be
inductive
capacitive
resistive
any of the above
⇒ Zener diode is invariably used with
forward bias
reverse bias
either (a) or (b)
zero bias
⇒
Assertion (A): The exponential form of Fourierserie
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true
⇒ In a differential amplifier, CMRR can be improved by using an increased
emitter resistance
collector resistance
power supply voltages
source resistance
⇒ A voltage V(t) is a Gaussian ergodic random process with a mean of zero and a variance of 4 volt^{2}. If it is measured by a dc meter. The reading will be
0
4
2
2
⇒ Examine the following statements
- Air and gases are compressible.
- Air, gases and some liquids are compressible.
- Oil can function as hydraulic fluid as well as lubricator.
3 only
2 and 3 only
1 and 3 only
2 only
⇒ In the state equation x = AX + Bu is a n x m matrix.
TRUE
FALSE
⇒ In a single phase semi-converter the number of thyristors is
16
8
4
2
⇒ Figure sho
bipolar transistor
JFET
p-channel MOSFET
n-channel enhancement MOSFET
⇒ If operator 'a' = 1 ∠120° then (1 + a + a^{2}) =
-a
-a^{2}
1
0