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Consider the following statements
| |
A. | 1 and 3 [Correct Answer] |
B. | 2 and 4 [Wrong Answer] |
C. | 3 and 4 [Wrong Answer] |
D. | 1 and 2 [Wrong Answer] |
View Answer
Explanation:-
Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ Computers use thousands of flip-flops. To coordinate the overall action, a common signal is sent to all flip-flop known as
debug signal
toggle signal
active signal
clock signal
⇒ Which of the following statements is incorrect?
The line integral of B around the circuit is called magnetomotive force
Normal components of B are continuous but the normal components of H are not continuous
Magnetic flux lines are bent away from the normal in the medium with the highest value of permeability
The unit of permeability is henry/metre
⇒ The resistance values of a PIN diode under positive bias and negative bias respectively are about
a few ohms and a kilo ohms
about 100 ohms and 1000 ohms
about 0.1 ohm and 100 ohms
about 1000 ohms and 10000 ohms
⇒ Consider the amplitude modulated (AM) signal A_{c} cos ω_{c}t + 2 cos ω_{m}t cos ω_{c}t For demodulating the signal using envelope detector, the minimum value of A_{c} should be
2
1
0.5
0
⇒ In major diatonic musical scale, an octave is divided into
12 intervals
10 intervals
7 intervals
5 intervals
⇒
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 R is false
A is false R is true
⇒
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
⇒ For a series R-L-C circuit tuned at resonant frequency which of the following statements is correct?
The voltage across inductance is greater than applied voltage
The voltage across capacitance is greater than applied voltage
The voltage across both inductance and capacitance is greater than applied voltage
The voltage across both inductance and capacitance is less than applied voltage
⇒ 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
⇒ In a conventional AM superhetrodyne receivers, the detectors employed to extract intelligence include
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Ratio detectors
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⇒ The voltage of the source in circuit shown __________ if i(t) = - 20e^{-2t46.6 e-2t47 e-2t50 e-2t0}
⇒ In using KCL it is necessary that current leaving a node is written as negative.
TRUE
FALSE
⇒ The clock shown in figure has a frequency of 6 MHz. The frequency of the Q output wil
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24 MHz
3 MHz
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⇒ In an n channel JFET, V_{GS} = V_{GS(off)}. Then
I_{D} is zero
I_{D} may be zero or positive
I_{D} is positive
I_{D} may be zero or negative
⇒ In a low power factor wattmeter, compensation for pressure coil current is provided.
TRUE
FALSE
⇒
A-1, B-2, C-3, D-4
A-4, B-2, C-3, D-1
A-3, B-4, C-2, D-1
A-2, B-1, C-3, D-4
⇒ An induction wattmeter can be used for ac only.
TRUE
FALSE
⇒ How many interrupts are there in 8085 microprocessor?
4
5
6
8
⇒ The transfer function G_{12} (s) for a two port is
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V_{2} (s)/V_{1} (s)
V_{2} (s)/I_{1} (s)
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⇒ In dc tacho generators used for measurement of speed of shaft, frequent calibration is necessary because
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strength of permanent magnet decreases with age
armature current produces heating effect
there is back emf
⇒ The energy of constant amplitude complex valued exponential sequence is ...
A^{2}
∞
1
0
⇒ Paper capacitors are used in power supplies for filtering.
TRUE
FALSE
⇒ For a symmetrical network
z_{11} = z_{22}
z_{12} = z_{21}
z_{11} z_{22} and z_{12} = z_{21}
z_{11} z_{12} - z_{12}^{2} = 0
⇒ The input to a coherent detector is DSB - SC signal plus noise. The noise at the detector output is
in phase component
quadrature component
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⇒ In a lead acid battery
the numbers of positive and negative plates are equal
the number of positive plates may be equal to or more than the number of negative plates
the number of positive plates is more than the number of negative plates
the number of negative plates is more than the number of positive plates
⇒ The minimum value of h_{fe} of a transistor used in RC phase shift oscillator is
54.4
45.4
44.5
29
⇒ Padders are used in a receiver to
discard the carrier
facilitate tracking
filter the input signal
suppress noise
⇒ Electromagnetic waves transport
energy only
momentum only
energy as well as momentum
neither energy nor momentum
⇒ The advantage of pulse modulation is
the transmitted power can be concentrated into short bursts
the time intervals between pulses can be filled with sample values from other message
pulse wave may obtain appreciable D.C. and low frequency content
all of the above
⇒ NAND and NOR gates are universal gates.
TRUE
FALSE
⇒ Computers use thousands of flip-flops. To coordinate the overall action, a common signal is sent to all flip-flop known as
debug signal
toggle signal
active signal
clock signal
⇒ Which of the following statements is incorrect?
The line integral of B around the circuit is called magnetomotive force
Normal components of B are continuous but the normal components of H are not continuous
Magnetic flux lines are bent away from the normal in the medium with the highest value of permeability
The unit of permeability is henry/metre
⇒ The resistance values of a PIN diode under positive bias and negative bias respectively are about
a few ohms and a kilo ohms
about 100 ohms and 1000 ohms
about 0.1 ohm and 100 ohms
about 1000 ohms and 10000 ohms
⇒ Consider the amplitude modulated (AM) signal A_{c} cos ω_{c}t + 2 cos ω_{m}t cos ω_{c}t For demodulating the signal using envelope detector, the minimum value of A_{c} should be
2
1
0.5
0
⇒ In major diatonic musical scale, an octave is divided into
12 intervals
10 intervals
7 intervals
5 intervals
⇒
Assertion (A): A radiation pyrometer is very suitable for high temperature measurement.
Reason (R): When temperature is high, a physical contact between hot body and thermometer is not desirable.
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 R is false
A is false R is true
⇒
Assertion (A): In imperfect capacitors, the current does not lead the applied ac voltage by 90°.
Reason (R): When subjected to ac fields, the dielectric constant can be expressed as ∈^{'}_{r} - j∈^{"}_{r}.
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
⇒ For a series R-L-C circuit tuned at resonant frequency which of the following statements is correct?
The voltage across inductance is greater than applied voltage
The voltage across capacitance is greater than applied voltage
The voltage across both inductance and capacitance is greater than applied voltage
The voltage across both inductance and capacitance is less than applied voltage
⇒ 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
⇒ In a conventional AM superhetrodyne receivers, the detectors employed to extract intelligence include
Peak detectors
Ratio detectors
PLL
Slope detectors
⇒ The voltage of the source in circuit shown __________ if i(t) = - 20e^{-2t46.6 e-2t47 e-2t50 e-2t0}
⇒ In using KCL it is necessary that current leaving a node is written as negative.
TRUE
FALSE
⇒ The clock shown in figure has a frequency of 6 MHz. The frequency of the Q output wil
12 MHz
24 MHz
3 MHz
1.5 MHz
⇒ In an n channel JFET, V_{GS} = V_{GS(off)}. Then
I_{D} is zero
I_{D} may be zero or positive
I_{D} is positive
I_{D} may be zero or negative
⇒ In a low power factor wattmeter, compensation for pressure coil current is provided.
TRUE
FALSE
⇒
Match the following:
List I | List II | ||
---|---|---|---|
A. | GTO | 1. | Widely used in digital computers |
B. | UJT | 2. | Used for freewheeling |
C. | Power Diode | 3. | Can be turned off by negative gate signal |
D. | MOSFET | 4. | Used in generating triggering pulses |
A-1, B-2, C-3, D-4
A-4, B-2, C-3, D-1
A-3, B-4, C-2, D-1
A-2, B-1, C-3, D-4
⇒ An induction wattmeter can be used for ac only.
TRUE
FALSE
⇒ How many interrupts are there in 8085 microprocessor?
4
5
6
8
⇒ The transfer function G_{12} (s) for a two port is
V_{2}/V_{1}
V_{2} (s)/V_{1} (s)
V_{2} (s)/I_{1} (s)
I_{2} (s)/I_{1} (s)
⇒ In dc tacho generators used for measurement of speed of shaft, frequent calibration is necessary because
contacts wear off
strength of permanent magnet decreases with age
armature current produces heating effect
there is back emf
⇒ The energy of constant amplitude complex valued exponential sequence is ...
A^{2}
∞
1
0
⇒ Paper capacitors are used in power supplies for filtering.
TRUE
FALSE
⇒ For a symmetrical network
z_{11} = z_{22}
z_{12} = z_{21}
z_{11} z_{22} and z_{12} = z_{21}
z_{11} z_{12} - z_{12}^{2} = 0
⇒ The input to a coherent detector is DSB - SC signal plus noise. The noise at the detector output is
in phase component
quadrature component
zero
the envelope
⇒ In a lead acid battery
the numbers of positive and negative plates are equal
the number of positive plates may be equal to or more than the number of negative plates
the number of positive plates is more than the number of negative plates
the number of negative plates is more than the number of positive plates
⇒ The minimum value of h_{fe} of a transistor used in RC phase shift oscillator is
54.4
45.4
44.5
29
⇒ Padders are used in a receiver to
discard the carrier
facilitate tracking
filter the input signal
suppress noise
⇒ Electromagnetic waves transport
energy only
momentum only
energy as well as momentum
neither energy nor momentum
⇒ The advantage of pulse modulation is
the transmitted power can be concentrated into short bursts
the time intervals between pulses can be filled with sample values from other message
pulse wave may obtain appreciable D.C. and low frequency content
all of the above
⇒ NAND and NOR gates are universal gates.
TRUE
FALSE