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Consider the following features of monochrome TV
| |
A. | 1, 2, 3, 4 [Wrong Answer] |
B. | 1, 2, 3 [Correct Answer] |
C. | 1, 2, 4 [Wrong Answer] |
D. | 2, 3, 4 [Wrong Answer] |
View Answer
Explanation:-
Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ A single phase half wave rectifier is feeding a resistive load. When a = 0, dc output voltage is 127 V. When a = 30°, the dc output voltage will be about
127 V
120 V
110 V
100 V
⇒ X(t) is a stationary process with the power spectral density S_{x}(f) > 0 for all f. The process is passed through a system shown be
S_{y}(f) > 0 for all f
S_{y}(f) = 0 for |f| > 1kHz
S_{y}(f) = 0 for f = nf_{0}, f_{0} = 2kHz, n any integer
S_{y}(f) = 0 for f = (2n + 1)f_{0} = 1 kHz, n any integer
⇒ 110.11_{2} x 110_{2} = __________ _{10}
40.5
30.5
20.5
10.5
⇒ A 4 bit down counter can count from
0000 to 1111
1111 to 0000
000 to 111
111 to 000
⇒ The current gain of a BJT is
g_{m} r_{0}
g_{m}/r_{0}
g_{m} r_{p}
g_{m}/r_{p}
⇒ In CE approximation, the upper end of d.c. load line is called the __________ point and the lower end is the __________ point.
Q, base
base, Q
saturation, cut off
cut off, saturation
⇒ For the given circuit, the current
0.0833333333333333
0.208333333333333
0.291666666666667
0.333333333333333
⇒ The amplifier network is shown bel
6.42 kΩ, 5.6 kΩ
6.42 Ω, (5.62) kΩ
6.4kΩ, (5.62) kΩ
6.42 Ω, 5.6 kΩ
⇒ In a positive-edge-triggered JK flip-flop, a low J and a low K produce __________ state. A high __________ on the rising edge of the clock.
inactive, reset
active, reset
active, toggle
inactive, toggle
⇒ If A = 3 + j1 and B = 4 + j3, A + B =
7 ∠45°
10 ∠45°
8.062 ∠29.7°
8.062 ∠73°
⇒ When a voltage is applied to a semiconductor crystal then the free electrons will flow.
towards positive terminal
towards negative terminal
either towards positive terminal or negative terminal
towards positive terminal for 1 μs and towards negative terminal for next 1 μs
⇒ A meter has a resistance of 1 Ω and full scale deflection current of 1 mA. To convert into an ammeter of 1 A range, the shunt resistance should be
1000 Ω
1 Ω
0.01 Ω
0.001 Ω
⇒ A 10 GHz signal propagates in a waveguide with a phase velocity of 4 x 10^{8} m/s. If the signal produces standing wave in the guide, then the distance between successive minimal will be
10 mm
20 mm
30 mm
40 mm
⇒ Which component is allowed to pass through it by a choke filter?
Dc
Ac
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⇒ In VHS format each video head is tilted from azimuth by
20°
10°
6°
1°
⇒ Typical size of digital IC is about
1″ x 1″
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⇒ A (0.75 - j50) ohm load is connected to a coaxial transmission line of Z_{0} = 75 ohms at a frequency of 10 GHz Which of the following will be the best method of matching?
Connecting an inductance at the end
Connecting a short circuited stub at the load
Connecting a capacitance at some distance from the load
Connecting a short circuited stub at some specified distance from the load
⇒
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 feedback control system shown in figure is sta
for all K ≥ 0
only if K ≥ 1
only if 0 ≤ K < 1
only if -1 ≤ K < 1
⇒ To measure moisture in wood, the most suitable method is
electric conduction
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absorption of radiation
equilibrium-moisture Vs humidity
⇒ The load impedance Z_{L} of a CE amplifier has R and L in series. The phase difference between output and input will be
180°
0
more than 90° but less than 180°
more than 180° but less than 270°
⇒ Nichrome is commonly used for
lamp filaments
transformer winding
heater coils
battery connections
⇒ Which of the following insulating material is restricted to temperatures below 100°C?
Micanite
Asbestos
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⇒ The effective modulation index is:
0.91287
0.8306
1
none of these
⇒ In a CE amplifier
both ac and dc load lines have the same slope
the ac load line has more slope than dc load line
the ac load line has less slope than dc load line
the two load lines may have slope more than the other
⇒ A wave is propagated in a waveguide at frequency of 9 GHz and separation is 2 cm between walls calculate the phase velocity for dominant mode.
3 x 10^{8} m/sec
5 x 10^{8} m/sec
1.5 x 10^{8} m/sec
9 x 10^{8} m/sec
⇒ A ground wave travels along surface of ground.
TRUE
FALSE
⇒ Each cell of static RAM contains
4 MOS transistors
4 MOS transistors and 1 capacitor
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4 MOS transistors and 2 capacitors
⇒ Find Y in the circuit bel
f_{2}
f_{2}
0
∑(0, 1, 2, 3, 5, 6, 9)
⇒ In a line with finite attenuation
power transmission is least efficient when there are no standing waves on the line
power transmission is most efficient when there are no standing waves on line
Load power depends on phase constant
standing waves will always exist on the line
⇒ A single phase half wave rectifier is feeding a resistive load. When a = 0, dc output voltage is 127 V. When a = 30°, the dc output voltage will be about
127 V
120 V
110 V
100 V
⇒ X(t) is a stationary process with the power spectral density S_{x}(f) > 0 for all f. The process is passed through a system shown be
S_{y}(f) > 0 for all f
S_{y}(f) = 0 for |f| > 1kHz
S_{y}(f) = 0 for f = nf_{0}, f_{0} = 2kHz, n any integer
S_{y}(f) = 0 for f = (2n + 1)f_{0} = 1 kHz, n any integer
⇒ 110.11_{2} x 110_{2} = __________ _{10}
40.5
30.5
20.5
10.5
⇒ A 4 bit down counter can count from
0000 to 1111
1111 to 0000
000 to 111
111 to 000
⇒ The current gain of a BJT is
g_{m} r_{0}
g_{m}/r_{0}
g_{m} r_{p}
g_{m}/r_{p}
⇒ In CE approximation, the upper end of d.c. load line is called the __________ point and the lower end is the __________ point.
Q, base
base, Q
saturation, cut off
cut off, saturation
⇒ For the given circuit, the current
0.0833333333333333
0.208333333333333
0.291666666666667
0.333333333333333
⇒ The amplifier network is shown bel
6.42 kΩ, 5.6 kΩ
6.42 Ω, (5.62) kΩ
6.4kΩ, (5.62) kΩ
6.42 Ω, 5.6 kΩ
⇒ In a positive-edge-triggered JK flip-flop, a low J and a low K produce __________ state. A high __________ on the rising edge of the clock.
inactive, reset
active, reset
active, toggle
inactive, toggle
⇒ If A = 3 + j1 and B = 4 + j3, A + B =
7 ∠45°
10 ∠45°
8.062 ∠29.7°
8.062 ∠73°
⇒ When a voltage is applied to a semiconductor crystal then the free electrons will flow.
towards positive terminal
towards negative terminal
either towards positive terminal or negative terminal
towards positive terminal for 1 μs and towards negative terminal for next 1 μs
⇒ A meter has a resistance of 1 Ω and full scale deflection current of 1 mA. To convert into an ammeter of 1 A range, the shunt resistance should be
1000 Ω
1 Ω
0.01 Ω
0.001 Ω
⇒ A 10 GHz signal propagates in a waveguide with a phase velocity of 4 x 10^{8} m/s. If the signal produces standing wave in the guide, then the distance between successive minimal will be
10 mm
20 mm
30 mm
40 mm
⇒ Which component is allowed to pass through it by a choke filter?
Dc
Ac
Both dc and ac
Only high frequency ac
⇒ In VHS format each video head is tilted from azimuth by
20°
10°
6°
1°
⇒ Typical size of digital IC is about
1″ x 1″
2″ x 2″
0.1″ x 0.1″
0.001″ x 0.001″
⇒ A (0.75 - j50) ohm load is connected to a coaxial transmission line of Z_{0} = 75 ohms at a frequency of 10 GHz Which of the following will be the best method of matching?
Connecting an inductance at the end
Connecting a short circuited stub at the load
Connecting a capacitance at some distance from the load
Connecting a short circuited stub at some specified distance from the load
⇒
Assertion (A): In a differential amplifier the current through common emitter resistor is called tail current
Reason (R): CMRR of an op-amp indicates how a differential signal amplified
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 feedback control system shown in figure is sta
for all K ≥ 0
only if K ≥ 1
only if 0 ≤ K < 1
only if -1 ≤ K < 1
⇒ To measure moisture in wood, the most suitable method is
electric conduction
electrical-capacitive
absorption of radiation
equilibrium-moisture Vs humidity
⇒ The load impedance Z_{L} of a CE amplifier has R and L in series. The phase difference between output and input will be
180°
0
more than 90° but less than 180°
more than 180° but less than 270°
⇒ Nichrome is commonly used for
lamp filaments
transformer winding
heater coils
battery connections
⇒ Which of the following insulating material is restricted to temperatures below 100°C?
Micanite
Asbestos
Teflon
Polythene
⇒ The effective modulation index is:
0.91287
0.8306
1
none of these
⇒ In a CE amplifier
both ac and dc load lines have the same slope
the ac load line has more slope than dc load line
the ac load line has less slope than dc load line
the two load lines may have slope more than the other
⇒ A wave is propagated in a waveguide at frequency of 9 GHz and separation is 2 cm between walls calculate the phase velocity for dominant mode.
3 x 10^{8} m/sec
5 x 10^{8} m/sec
1.5 x 10^{8} m/sec
9 x 10^{8} m/sec
⇒ A ground wave travels along surface of ground.
TRUE
FALSE
⇒ Each cell of static RAM contains
4 MOS transistors
4 MOS transistors and 1 capacitor
2 MOS transistors
4 MOS transistors and 2 capacitors
⇒ Find Y in the circuit bel
f_{2}
f_{2}
0
∑(0, 1, 2, 3, 5, 6, 9)
⇒ In a line with finite attenuation
power transmission is least efficient when there are no standing waves on the line
power transmission is most efficient when there are no standing waves on line
Load power depends on phase constant
standing waves will always exist on the line