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. | In figure, the current |

A. | 0.0416666666666667 [Correct Answer] |

B. | 0.0833333333333333 [Wrong Answer] |

C. | 0.166666666666667 [Wrong Answer] |

D. | 0.333333333333333 [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss 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 :**

⇒ A sequence

*x*(

*n*) with the

*z*transform X(

*z*) =

*z*

^{4}+

*z*

^{2}- 2

*z*+ 2 - 3

*z*- 4 is applied as an input to a linear, time invariant system with the impulse response

*h*(

*n*) = 2δ(

*n*- 3) wh

-6

zero

2

-4

⇒ In the given figure shows a root locus plot. Consider the following statements for this plot

- The open loop system is a second order system
- The system is overdamped for K > 1
- The system is stable for all values of K

1, 2, 3

1, 3

2, 3

1, 2

⇒ The accuracy of measurement by ohmmeter is very good.

TRUE

FALSE

⇒ Which statement is false as regards holes

Holes exist in conductors as well as semiconductors

Holes constitute positive charges

Holes exist only in semiconductors

Holes and electrons recombine

⇒ Derivative control action is effective?

Only during steady state periods

Only during transient state periods

During both steady state and transient state periods

Either during steady state or during transient state periods

⇒ At midband frequencies the coupling capacitor in RC coupled CE amplifier may be considered as

open circuit

short circuit

a reactance equal to load resistance

none of the above

⇒ When P

_{c}is the unmodulated carrier power and P

_{t}is the total power in the modulated wave, then the maximum power in AM wave is

P

_{t}= 1.5 P

_{c}

P

_{t}= 2.5 P

_{c}

P

_{t}= 2

P

_{t}= 22 P

_{c}

⇒ In which mode of rectangular waveguide are all field components zero?

TM

_{00}

TM

_{11}

TM

_{01}

TM

_{10}

⇒ If we connect two silicon unilateral switches in anti- parallel we get

SCR

SBS

SCS

UJT

⇒ Which of the following is not an internal DOS command?

VER

COPY

MEM

DATE

⇒ E

_{G}for silicon is 1.12 eV and that for germanium is 0.72 eV. Therefore, it can be concluded that

the conductivity of silicon will be less than that of germanium at room temperature

the conductivity of silicon will be more than that of germanium at room temperature

the conductivity of two will be same at 60°C

the conductivity of two will be same at 100°C

⇒ A 4 bit synchronous counter uses flip flops with a delay time of 15 ns each. The time required for change of state is

15 ns

30 ns

45 ns

60 ns

⇒ What is the characteristic of a good control system?

Sensitive to parameter variation

Insensitive to input command

Neither sensitive to parameter variation nor sensitive to input commands

Insensitive to parameter variation but sensitive to input commands

⇒ A copper coil has a resistance of 40 ohm at 20°C. At 100°C the resistance is likely to be

44 Ω

54 Ω

84 Ω

104 Ω

⇒ Consider the following statement associated with bipolar junction transistor and JFET

- The former has higher input impedance than the later
- The former has higher frequency stability than the later
- The later has lower noise figure than the former
- The later has higher power rating than the former.

1 and 2 are correct

2 and 3 are correct

3 and 4 are correct

1 and 4 are correct

⇒ In a JFET

drain current is very nearly equal to source current

drain current is much less than source current

drain current may be equal to or less than source current

drain current may be even more than source current

⇒ In broadside array

the principle direction radiation is perpendicular to the array axis and also to the plane containing the array elements

the principle direction radiation is parallel to the array axis and also to the plane containing the array elements

the principle direction radiation is parallel to the array axis and perpendicular to the plane containing the array elements

the principle direction radiation is perpendicular to the array axis and parallel to the plane containing the array elements

⇒ A two branch tuned circuit has a coil of resistance R and inductance L in one branch and capacitance C in the second branch. If R is increased, the dynamic resistance

decreases

increases

remains constant

may increases or decreases

⇒ A lag compensator

speeds up the transient response of the system

improves steady state behaviour of the system

improves steady state behaviour and speeds up the transient response of the system

improves steady state behaviour and preserves the transient response of the system

⇒ At a temperature of about 1 K, aluminium is a

conductor

insulator

photoconductor

superconductor

⇒

Match the following:

List I (I/P - O/P relation) | List II (Property of the system) | ||
---|---|---|---|

A. | y(n) = x(n) | 1. | Nonlinear, non-causal |

B. | y(n) = x(n^{2}) | 2. | Linear, non casual |

C. | y(n) = x^{2}(-n) | 3. | Linear causal |

D. | y(n) = x^{2}(n) | 4. | Nonlinear causal |

A-1, B-4, C-3, D-2

A-3, B-2, C-1, D-4

A-1, B-2, C-3, D-4

A-3, B-4, C-1, D-2

⇒ The number of valence electrons in acceptor impurity are

5

4

3

1

⇒ In a push pull circuit

each transistor conducts for 180°

each transistor conducts for more than 180° but less than 360°

each transistor conducts for less than 180°

the period of conduction of each transistor depends on circuit configuration

⇒ A germanium diode has a reverse saturation current of 30 μA at 125°C and forward current of 1

*m*A at a forward potential of 0.8 V and the reverse potential is 0.6 V What are its dynamic forward and reverse resistance at this temperature.

10.7 Ω, 70

*k*Ω

34 Ω, 20

*k*Ω

80 Ω, 20

*k*Ω

800 Ω, 40

*k*Ω

⇒ For real and odd signals, the Fourier series coefficient

*a*is __________ .

_{k}purely imaginary and even

purely real and even

purely imaginary and odd

purely real and odd

⇒ The action of backward wave oscillator is similar to that of

klystron amplifier

reflex klystron oscillator

TWT

magnetron

⇒ The circuit realizes the func

(A + B) E + CD

(A + B) (E + CD)

(A + B) (E + C + D)

(AB + E). CD

⇒ In 8085 microprocessor, which of the following interrupts is unmaskable interrupts?

RST 5.5

RST 7.5

TRAP

INTR

⇒ Dolby system of noise reduction divides the total audio spectrum into

8 frequency bands

4 frequency bands

2 frequency bands

none of the above

⇒

Match the following:

List I (F.T and F.S) | List II (Properties) | ||
---|---|---|---|

A. | Fourier Series | 1. | Discrete, Periodic |

B. | Fourier Transform | 2. | Continuous, Periodic |

C. | Discrete Time Fourier | 3. | Discrete aperiodic |

D. | Discrete Fourier Transform | 4. | Continuous, aperiodic |

A-3, B-4, C-2, D-1

A-1, B-2, C-4, D-3

A-3, B-2, C-4, D-1

A-1, B-4, C-2, D-3