Users Also Read
MCQ's Search Engine
Electrical Engineering
Mechanical Engineering
Civil Engineering
Automobile Engineering
Chemical Engineering
Computer Engineering
Electronics Engineering
Medical Science Engg
Assertion (A): The resolution of a DAC depends on the number of bits Reason (R): Low resolution leads to fine control. | |
A. | Both A and R are correct and R is correct explanation of A [Wrong Answer] |
B. | Both A and R are correct but R is not correct explanation of A [Correct Answer] |
C. | A is true, R is false [Wrong Answer] |
D. | A is false, R is true [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 :
⇒ The signal m(t) = 10 cos 100 pt is sampled at the rate of F_{s} = 75 H_{z, } then determine signal after sampling.
4 cos 100 pt + 8 sin 200 pt
4 cos 100 pt + 8 sin 200 pt + cos 75 pt
4 cos 25 pt + 8 sin 50 pt + cos 75 pt
none
⇒ A step voltages is applied to RLC series circuit having R = 2 Ω, L = 1 H and C = 1 F. The transient current response will be
over damped
critically damped
under damped
any of the above depending the magnitude of voltage
⇒ Assuming that k is an integer what would the result of following expression
8
7
7.5
zero
⇒ Geosynchronous satellites are always launched in the equatorial plane because it is the only plane which provides
24-hour orbit
stationary satellite
global communication
zero-gravity environs
⇒
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
⇒ Two impedances are connected in series. Three voltmeters are connected, one across each impedance and one across combination. The readings of all the three are equal. The phase angle between voltages across the two impedances is
30°
60°
90°
120°
⇒ To protect an SCR against high di/dt we connect
a capacitance in series with SCR
a capacitance in parallel with SCR
an inductance in parallel with SCR
an inductance in series with SCR
⇒ The main advantage of a crystal oscillator
can oscillate any frequency
gives a high output voltage
frequency of oscillation is almost constant
can operates at a low dc voltage
⇒ Figure represen
Tunnel diode
Zener diode
Photo diode
Photo sensitive diode
⇒ A h is the unit of quantity of electricity.
TRUE
FALSE
⇒ A DAC has full scale output of 5 V. If accuracy is ± 0.2% the maximum error for an output of 1 V is
5 mV
10 mV
2 mV
20 mV
⇒ Find the electric charge required on the earth and moon to balance their gravitational attraction if the charge on the earth is 10 times that on the moon.
1.73 TC
17.3 GC
17.3 TC
1.73 GC
⇒ A generator of 50 Ω internal impedance and operating at 1 GHz feeds a 75 Ω load via a coaxial line of characteristic impedance 50 Ω. The VSWR on the feed line is
0.5
1.5
2.5
1.75
⇒ In Gunn diode electrons are transferred from
Ridge guide is essentially a form of capacitively loaded guide
low to high mobility energy bands
valley to domain formation
domain to valley formation
⇒ Antenna efficiency of antenna is, if radiation resistance is 370 Ω and loss resistance is 100 Ω
0.8
0.87
0.78
0.2127
⇒ Probability of error in DPSK is less than PSK
TRUE
FALSE
equal
depend upon noise
⇒
A-1, B-2, C-3, D-4
A-2, B-3, C-4, D-1
A-3, B-4, C-1, D-2
A-3, B-1, C-2, D-4
⇒ An amplifier with loop gain Aβ will be more stable for value of Aβ as
0.95
0.7
1.2
1.5
⇒ The dominant mode in a rectangular wave-guide is
TE_{01}
TM_{01}
TE_{10}
TM_{11}
⇒ The resistance of series field winding is a low resistance.
TRUE
FALSE
⇒ Two current sources each of rms value 10 A have frequencies 40 Hz and 50 Hz respectively. They are connected in series, the expression for resultant wave is
i = 10 sin 40 t + 10 sin 50 t
i = 14.14 sin 40 t + 14.14 sin 50 t
i = 14.14 sin 80 pt + 14.14 sin 100 pt
i = 20 sin 80 pt + 20 sin 100 pt
⇒ The satellites used for intercontinental communication are called
Comsat
Domsat
Marisat
Intelsat
⇒ Current through a charging capacitor exhibits
an exponential growth function
an exponential decay function
a step decay function
a linear decay function
⇒ In 8085 microprocessor the value of the most significant bit of the result following the execution of any arithmetic or Boolean instruction is stored in
the carry status flag
the auxiliary carry status flag
sign status flag
zero status flag
⇒ A coil of resistance R and inductance L has a capacitor C in parallel with it. The source frequency is adjusted to a value equal to resonant frequency. Another capacitor C is added in parallel with the above circuit, the source current will
increase
decrease
remain the same
may increase or decrease
⇒ Choose the correct statement
The reflection coefficient (r) of a transmission line is greater than 1
r varies from 0 to ∞
r is less than or equal to 1
r varies from - ∞ to + ∞
⇒ If the electric field intensity associated with a uniform plane electromagnetic wave travelling in a perfect dielectric medium is given
3.0 x 10^{8} m/sec
2 x 10^{8} m/sec
6.28 x 10^{7} m/sec
2 x 10^{7} m/sec
⇒ If A = 3 + j1, A^{4}
100 ∠18.43°
100 ∠73.72°
10 ∠18.43°
10 ∠73.72°
⇒ The current distribution of a half wave dipole is
uniform
sinusoidal
triangular
complex
⇒ If the potential functions V_{1} and V_{2} satisfy Laplace's equation within a closed region and assume the same values on its surface, then which of the following is correct?
V_{1} and V_{2} are identical
V_{1} is inversely proportional to V_{2}
V_{1} has the same direction as V_{2}
V_{1} has the same magnitude as V_{2} but has different direction
⇒ The signal m(t) = 10 cos 100 pt is sampled at the rate of F_{s} = 75 H_{z, } then determine signal after sampling.
4 cos 100 pt + 8 sin 200 pt
4 cos 100 pt + 8 sin 200 pt + cos 75 pt
4 cos 25 pt + 8 sin 50 pt + cos 75 pt
none
⇒ A step voltages is applied to RLC series circuit having R = 2 Ω, L = 1 H and C = 1 F. The transient current response will be
over damped
critically damped
under damped
any of the above depending the magnitude of voltage
⇒ Assuming that k is an integer what would the result of following expression
8
7
7.5
zero
⇒ Geosynchronous satellites are always launched in the equatorial plane because it is the only plane which provides
24-hour orbit
stationary satellite
global communication
zero-gravity environs
⇒
Assertion (A): If the reading of an instrument is low, the error is large.
Reason (R): The error of an instrument is certain percentage of its full scale deflection.
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
⇒ Two impedances are connected in series. Three voltmeters are connected, one across each impedance and one across combination. The readings of all the three are equal. The phase angle between voltages across the two impedances is
30°
60°
90°
120°
⇒ To protect an SCR against high di/dt we connect
a capacitance in series with SCR
a capacitance in parallel with SCR
an inductance in parallel with SCR
an inductance in series with SCR
⇒ The main advantage of a crystal oscillator
can oscillate any frequency
gives a high output voltage
frequency of oscillation is almost constant
can operates at a low dc voltage
⇒ Figure represen
Tunnel diode
Zener diode
Photo diode
Photo sensitive diode
⇒ A h is the unit of quantity of electricity.
TRUE
FALSE
⇒ A DAC has full scale output of 5 V. If accuracy is ± 0.2% the maximum error for an output of 1 V is
5 mV
10 mV
2 mV
20 mV
⇒ Find the electric charge required on the earth and moon to balance their gravitational attraction if the charge on the earth is 10 times that on the moon.
1.73 TC
17.3 GC
17.3 TC
1.73 GC
⇒ A generator of 50 Ω internal impedance and operating at 1 GHz feeds a 75 Ω load via a coaxial line of characteristic impedance 50 Ω. The VSWR on the feed line is
0.5
1.5
2.5
1.75
⇒ In Gunn diode electrons are transferred from
Ridge guide is essentially a form of capacitively loaded guide
low to high mobility energy bands
valley to domain formation
domain to valley formation
⇒ Antenna efficiency of antenna is, if radiation resistance is 370 Ω and loss resistance is 100 Ω
0.8
0.87
0.78
0.2127
⇒ Probability of error in DPSK is less than PSK
TRUE
FALSE
equal
depend upon noise
⇒
Match the following:
List I | List II | ||
---|---|---|---|
A. | Firm ware | 1. | Converts program in high level language to machine language |
B. | Compiler | 2. | Converts assembly language program into machine language |
C. | Assembler | 3. | Software embedded in hardware |
D. | Virtual addressing | 4. | Grouping information between various memories |
A-1, B-2, C-3, D-4
A-2, B-3, C-4, D-1
A-3, B-4, C-1, D-2
A-3, B-1, C-2, D-4
⇒ An amplifier with loop gain Aβ will be more stable for value of Aβ as
0.95
0.7
1.2
1.5
⇒ The dominant mode in a rectangular wave-guide is
TE_{01}
TM_{01}
TE_{10}
TM_{11}
⇒ The resistance of series field winding is a low resistance.
TRUE
FALSE
⇒ Two current sources each of rms value 10 A have frequencies 40 Hz and 50 Hz respectively. They are connected in series, the expression for resultant wave is
i = 10 sin 40 t + 10 sin 50 t
i = 14.14 sin 40 t + 14.14 sin 50 t
i = 14.14 sin 80 pt + 14.14 sin 100 pt
i = 20 sin 80 pt + 20 sin 100 pt
⇒ The satellites used for intercontinental communication are called
Comsat
Domsat
Marisat
Intelsat
⇒ Current through a charging capacitor exhibits
an exponential growth function
an exponential decay function
a step decay function
a linear decay function
⇒ In 8085 microprocessor the value of the most significant bit of the result following the execution of any arithmetic or Boolean instruction is stored in
the carry status flag
the auxiliary carry status flag
sign status flag
zero status flag
⇒ A coil of resistance R and inductance L has a capacitor C in parallel with it. The source frequency is adjusted to a value equal to resonant frequency. Another capacitor C is added in parallel with the above circuit, the source current will
increase
decrease
remain the same
may increase or decrease
⇒ Choose the correct statement
The reflection coefficient (r) of a transmission line is greater than 1
r varies from 0 to ∞
r is less than or equal to 1
r varies from - ∞ to + ∞
⇒ If the electric field intensity associated with a uniform plane electromagnetic wave travelling in a perfect dielectric medium is given
3.0 x 10^{8} m/sec
2 x 10^{8} m/sec
6.28 x 10^{7} m/sec
2 x 10^{7} m/sec
⇒ If A = 3 + j1, A^{4}
100 ∠18.43°
100 ∠73.72°
10 ∠18.43°
10 ∠73.72°
⇒ The current distribution of a half wave dipole is
uniform
sinusoidal
triangular
complex
⇒ If the potential functions V_{1} and V_{2} satisfy Laplace's equation within a closed region and assume the same values on its surface, then which of the following is correct?
V_{1} and V_{2} are identical
V_{1} is inversely proportional to V_{2}
V_{1} has the same direction as V_{2}
V_{1} has the same magnitude as V_{2} but has different direction