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Q1. | If a two port network is represented by an equivalent T network the admittance of series arm in term of ABCD parameter is equal to |

A. | C [Wrong Answer] |

B. | 1/C [Wrong Answer] |

C. | (A - 1)/B [Wrong Answer] |

D. | 1/B [Correct Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ Polar plot of a lag-lead compensator is a circle.

TRUE

FALSE

⇒ In a 3 phase system, the zero sequence component of line to line voltages is zero

if line to line voltages are balanced

if line to line voltages are unbalanced

if line to line voltages are balanced or unbalanced

if degree of unbalanced in line to line voltages is small

⇒ For the block diagram of the given figure, the equation describing system dynamic

(1 + RC

*s*) Δθ

_{0}(

*s*) = Δθ

_{i}(

*s*) + R Δ H(

*s*)

(1 + RC

*s*) [ΔH(

*s*)] = Δθ(

*s*) - Δθ

_{0}(

*s*)

(1 + RC

*s*) Δθ

_{0}(

*s*) = RΔ H(

*s*) - Δ θ

*(*

_{i}*s*)

(1 + RC

*s*) Δθ

*(*

_{i}*s*) = Δ H(

*s*)[R] - Δθ

_{0}(

*s*)

⇒ Among the digital IC families - ECL, TTL, and CMOS

ECL has the least propagation delay

TTL has largest fan out

CMOS has the lowest noise margin

TTL has the lowest power consumption

⇒ Consider the following C program int

All

1, 2, 3 only

2, 3, 4 only

1, 2, 4 only

⇒ Consider the following statements about hybrid ring

- Ports 1 and 2 are decoupled.
- Port 3 and 4 are coupled.
- A signal entering either port 1 or 2 splits equally between ports 3 and 4.
- A signal entering either port 3 or 4 splits equally between ports 1 and 2.

1, 2, 3 and 4

1, 3 and 4

1 and 2

2, 3 and 4

⇒ Which of the following is invalid in Basic?

A ** B + - C

A ** B - C

A * B - C

A * B - C ** D

⇒ Directivity means

maximum directive gain

zero directive gain

minimum directive gain

none of the above

⇒ In a network containing resistances, reactances the root of the characteristic equation give for the circuit

the forced response

the total response

the natural response

the damped response

⇒ In the below figure the rms voltage across each half of secondary is 200 V. The peak inverse voltage across each of thyristor

200 V

2(200) V

2(400) V

800 V

⇒

**Assertion (A):** In control system velocity error is not an error in velocity but is an error in position due to a ramp input.

**Reason (R):** For a type of system velocity error is zero.

Both A and R are correct and R is correct explanation of A

Both A and R are correct but R is not correct explanation of A

A is correct but R is wrong

R is correct but A is wrong

⇒ The frequency at which phase angle is 180° is called

phase crossover frequency

stability limit frequency

frequency of limited stability

gain margin frequency

⇒ The function of blend control in stereo system is

to dilute left channel

to dilute right channel

to dilute any of the channels

none of the above

⇒ An extrinsic semiconductor sample has 6 billion silicon atoms and 3 million pentavalent impurity atoms. The number of electrons and holes is

3 million each

6 billion each

3 million free electrons and very small number of holes

3 million holes and very small number of free electrons

⇒ How is inversion achieved using EX-OR gate?

Giving input signal to the two input lines of the gate tied together

Giving input to one input line and logic one to the other line

Giving input to one input line and logic one to the other line

Inversion cannot be achieved using EX-OR gate

⇒ In an RC series circuit R = 100 Ω and X

_{C}= 10 Ω. In this circuit

the current and voltage are in phase

the current leads the voltage by about 6°

the current leads the voltage by about 84°

the current lags the voltage by about 6°

⇒ In the op-amp circuit of figure, V

_{03 V1 - 4 V2-3 V1 + 4 V23(V1 - V2)-3(V1 - V2)}

⇒ In rectangular waveguides the ratio of width to height is about

0.5

1

2

4

⇒ The forms of IF statements in FORTRAN 77 are called

logical IF and Block IF

logical IF, block IF and arithmetic IF

logic IF, block IF, arithmetic IF and negate IF

logical IF and arithmetic IF

⇒ The antenna most commonly used for TV broadcasting in the UHF band is

turnstile antenna

dipole antenna

yagi antenna

rhombic antenna

⇒ Consider the following statements about Infix and Post fix notations in Pascal

- In Infix notation operators appear between the operands on which they operate.
- In Post fix notation operators appear after the operand.
- The Infix expression A + B - C + D will appear as AB + C - D + in post fix notation.

All

1 and 2 only

1 and 3 only

2 and 3 only

⇒ The minterm designation for ABCD is

m

_{8}

m

_{10}

m

_{14}

m

_{15}

⇒ In a series circuit with fixed R and variable X

_{L}, the current locus lies in the fourth quadrant.

TRUE

FALSE

⇒

Match the following:

List I (DOS commands) | List II (Meaning) | ||
---|---|---|---|

A. | ATTRIB | 1. | Displays all directories and subdirectories |

B. | SCAN DISK | 2. | Moves files to another director |

C. | MOVE | 3. | Checks the status of disc |

D. | TREE | 4. | Hides a file |

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

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

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

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

⇒ The memory segment registers in 8086 are denoted by

AS, BS, CS, DS

BS, CS, SS, ES

CS, DS, SS, ES

DS, ES, FS, SS

⇒ A 50 Hz current has an amplitude of 10 A. The rate of change of current at

*t*= 0.005 after

*i*= 0 and is increasing is

2221.44 A/s

0

- 2221.44 A/s

- 3141.6 A/s

⇒ The pressure coil of a wattmeter should be connected to the supply side of the current coil when

load impedance in high

load impedance is low

voltage is high

voltage is low

⇒ When temperature is above ferromagnetic Curie temperature, a ferromagnetic material

becomes a paramagnetic material

becomes a very strong ferromagnetic material

becomes diamagnetic material

none of the above

⇒ The statement ! (

*b*< 5) in C means

*b*= 5

*b*> 5

*b*> = 5

none of the above

⇒ An ideal rectifier should have

100% efficiency, zero ripple factor, zero harmonic factor and unity displacement factor

100% efficiency, zero tipple factor, zero harmonic factor and zero displacement factor

100% efficiency, zero ripple factor, unity harmonic factor and unity displacement factor

100% efficiency, unity ripple factor, zero harmonic factor and unity displacement factor