Users Also Read

MCQ's Search Engine

Electrical Engineering

Mechanical Engineering

Civil Engineering

Automobile Engineering

Chemical Engineering

Computer Engineering

Electronics Engineering

Medical Science Engg

Q1. | A sine wave of voltage varies from zero to maximum of 200V. How much is the voltage at the instant of 30° of the cycle? |

A. | 50 V [Wrong Answer] |

B. | 82.8 V [Wrong Answer] |

C. | 100 V [Correct Answer] |

D. | 173.2 V [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ Impedance level of Impatt diodes is generally lower than that of Gunn diodes

TRUE

FALSE

⇒ In a conductor the conduction and valence bands overlap

TRUE

FALSE

⇒ If ω

_{0}is the angular frequency of rotation of electron in the absence of magnetic field, the angular frequency ω, when a magnetic field B is acting is ω ≅ ω

_{0}+ (

*e*/2

*m*)B.

TRUE

FALSE

⇒ What is the frequency of audio modulation?

1000 Hz

2000 Hz

3000 Hz

2000 kHz

⇒ What is the numerical aperture an optical fiber when critical angle is 30°?

0.5

0.704

0.866

0.2

⇒ Dielectric constant and conductivity of rocky soil and flat sandy soil are around

10 and 20 mho/cm respectively

20 and 10 mho/cm respectively

2 and 5 mho/cm respectively

0.5 and 2 mho/cm respectively

⇒ Hystresis loss least depends on

frequency

magnetic field intensity

volume of the material

grain orientation of material

⇒ In a sine wave, maximum rate of change of voltage occurs at

ascent of the waveform

+ ve maximum

- ve maximum

between maximum and minimum

⇒ The maximum permissible distance between two samples of a 10 kHz signal

100 μ sec

50 μ sec

10 μ sec

none

⇒ In a forward biased

*p*-

*n*junction current enters

*p*material as hole current and leaves

*n*material as electron current of the same magnitude.

TRUE

FALSE

⇒ In 8085 microprocessor, the interrupt enable flip-flop is reset by

DI instruction only

system RESET only

interrupt acknowledgment only

all of the above

⇒ The dc voltage on plate modulated class C amplifier is 8 kV. If the peak modulating voltage is 4 kV, the peak RF voltage delivered to load is

32 kV

12 kV

0.5 kV

24 kV

⇒ MTSO stands for

Metropolitan Telecommunication Subscribers Office

Metropolitan Telecommunication Switching Office

Mobile Telecommunication Switching Office

Mobile Telecommunication Subscriber Office

⇒ In an RLC series circuit having finite values of RLC, the phase difference between applied voltage and current is

always 0°

between 0 and 180°

between 0 and 90°

always 90°

⇒ Bit is

smallest piece of electronic hardware

a drilling tool

an abbreviation for binary digit

the smallest number

⇒ If a wave is propagated in free space, it will be in nature of

TE

TM

TEM

Any one of above

⇒ For a BJT, avalanche multiplication factor depends on

V

_{CE}

V

_{CB}

V

_{BE}

none

⇒ A linear discrete time system has the char. equation

*z*

^{3}- 0.81

*z*= 0, the system is

stable

marginally stable

unstable

stability cannot be assessed from the given information

⇒ Two

*D*flip-flop as shown below are to be connected as a synchronous counter that goes through the following Q

_{1}Q

_{0}sequ

Q

_{1}and Q

_{0}

Q

_{0}and Q

_{1}

Q

_{1}Q

_{0}and Q

_{1}Q

_{0}

Q

_{1}Q

_{0}and Q

_{1}Q

_{0}

⇒ The decimal equivalent of the binary number 10110.0101011101 is

22.24082165

22.340821675

22.3408213125

22.3408203125

⇒ A (75 -

*j*50) Ω load is connected to a coaxial line of Z

_{0}= 75 Ω at 10 GHz. The best method of matching consists of using

a capacitance at some specific distance from load

a short circuited stub at some specific distance from load

an inductance at load

a short circuited stub at load

⇒ The circuit in figure, is to be scaled to an impedance level of 5kΩ and resonant frequency of 5 x 10

^{6}rad/sec. The possible combination of R, L,

2.5Ω, 0.2 mH, 200 pF

5 kΩ, 0.2 mH, 200 pF

5 kΩ, 0.2 mH, 200 μF

5 kΩ, 0.1 mH, 0.4 μF

⇒ In the circuit shown in the fi

only red will glow

only green will glow

both red and green will glow

none will glow

⇒ To separate channels in FDM receiver we have to use

integration

AND gate

band pass filter

differentiation

⇒ In a series RLC circuit for lower frequency power factor is ________

leading, Lagging

lagging, Leading

independent of frequency

same

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | Resistance | 1. | M^{-1}L^{-2}T^{4}I^{2} |

B. | Inductance | 2. | ML^{2}T^{-2}I^{-2} |

C. | Capacitance | 3. | ML^{2}T^{-3}I^{2} |

A-1, B-2, C-3

A-2, B-1, C-3

A-2, B-3, C-1

A-3, B-2, C-1

⇒ For a series RLC circuit bandwidth is ω

_{2}- ω

_{1}= R/2L.

TRUE

FALSE

⇒ For an N bit ADC, the percentage resolution is [1/2

^{N}- 1)] 100.

TRUE

FALSE

⇒ The polar plot of transport lag is a unit circle.

TRUE

FALSE

⇒ The impulse response

*h*(

*t*) of a linear time-invariant continuous time system is described by

*h*(

*t*) = exp (a

*t*)

*u*(

*t*) + exp (β

*t*)

*u*(-

*t*), where

*u*(

*t*) denotes the unit step function, and a and β are constants. This system is stable if

a is positive and β is positive

a is negative and β is negative

a is positive and β is negative

a is negative and β is positive