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Q1. | Frequency response approach is a simple approach to control system design. |

A. | TRUE [Correct Answer] |

B. | FALSE [Wrong Answer] |

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

⇒ A resistance of 5 ohms is connected in one branch of a network. The current in this branch is 2.2. A. If the resistance is increased to 7.5 Ω, the remaining circuit being the same, the current in this branch will be

2.2 A

less than 2.2 A

2.2 A or less than 2.2 A

2.2 A or less or more than 2.2 A

⇒ The stator of phase shifting transformer for use in conjunction with an ac potentiometer has a

single phase winding

two phase winding

3 phase winding

either (a) or (c)

⇒ When temperature is more than ferromagnetic curie temperature, the behaviour of a ferromagnetic material is similar to that of paramagnetic material.

TRUE

FALSE

⇒ Which of the following measurements can be done using a counter?

- Pulse duration
- Interval between two pulses
- Amplitude of the pulse
- Rise time of a pulse

1 and 2

2 and 3

1 and 4

2 and 4

⇒ When a UJT is used as a relaxation oscillator the current should be

less than I

_{p}

more than I

_{v}

more than I

_{p}but less than I

_{v}

negative

⇒ The DTFT of

*x*(

*n*) = δ(

*n*) will be

1

0

∞

not defined

⇒ Which of the following should dominant wave have?

Lowest cut off frequency

Highest cut off frequency

No attenuation

No phase shift

⇒ Schrodinger wave equation is a

linear equation

differential equation

partial differential equation

none of the above

⇒ The function (

*s*+ 2) (

*s*+ 4)/[(

*s*+ 1)(

*s*+ 3)]

is a reactance function

is an RC function

may be a reactance function or an RC function

may be RC function or an RL function

⇒ T.V. broadcasting based on

line of sight communication

ionospheric propagation

ground wave

medium wave

⇒ When a wave reaches an open circuit

the voltage at termination is doubled the incident voltage

the current at termination is doubled the incident voltage

the voltage at termination is zero

both V and I at termination are doubled the incident voltage and current

⇒ Electrical contact materials used in switches, brushes, relay must possess

high thermal conductivity and high melting point

low thermal conductivity and low melting point

high thermal conductivity and low melting point

low thermal conductivity and high melting point

⇒ Magnetic effect of current is used in generators but not in motors.

TRUE

FALSE

⇒ In figure which is correct at any time

*t*

I =

I =

I =

I =

I =

*i*_{R}+*i*_{L}I =

*i*_{R}+*i*_{L}*i*_{C}I =

*i*_{R}+*i*_{L}-*i*_{C}I =

*i*_{R}-*i*_{L}-*i*_{C}

⇒ Assuming a minimum angle of elevation of 5°, a geosynchronous satellite remains in line-of-sight for __________ percentage of Earth's surface.

30.3

42.4

50

25

⇒ Ohm's law is valid for

dc voltage and current

ac voltage and current

all voltages and current

dc and ac voltages and currents

⇒ In the circuit of figure the voltage across capacitor when switch is closed at

0 V

20 V

very large

7.5 V

⇒ For an ideal antenna, numerical value of directivity must be

∞

0

1

any value

⇒ Which one of the following is correct? Energy of a power signal is

finite

zero

infinite

between 1 and 2

⇒ Magnetic deflection is inversely proportional to

voltage

(voltage)

(voltage)

(voltage)

⇒

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 colour on the extreme left in general purpose fixed resistors represents

first significant digit

tolerance

wattage rating

voltage rating

⇒ The maximum power that can be transferred to the load is resistor R

1 W

10 W

0.25 W

0.5 W

⇒ Covalent bond energy in Germanium is approximately

3.8 eV

4.7 eV

7.4 eV

12.5 eV

⇒ The useful operational life of INSAT-IB (launched in 1983) is expected to end by

1992-93

1991-92

1989-90

1993-94

⇒ Java's syntax is based on

C

C + +

Fortran 77

Pascal

⇒ In the network of figure it is desired that maximum power be supplied to Z

|Z

[|Z

[|Z

[|Z

⇒ If X = - 285.56 and the Pascal write statement used is

-285.56

-2.85 E + 02

-2.85560 E + 02

-2.8 E + 02

⇒ M circles are symmetrical with respect to real axis.

TRUE

FALSE

⇒ Tellegen's theorem is applicable to

circuits with passive elements only

circuits with linear elements only

circuits with time invariant elements only

circuits with active or passive, linear or nonlinear and time invariant or time varying elements

⇒ Assuming a minimum angle of elevation of 5°, a geosynchronous satellite remains in line-of-sight for __________ percentage of Earth's surface.

30.3

42.4

50

25

⇒ Ohm's law is valid for

dc voltage and current

ac voltage and current

all voltages and current

dc and ac voltages and currents

⇒ In the circuit of figure the voltage across capacitor when switch is closed at

*t*= &infin0 V

20 V

very large

7.5 V

⇒ For an ideal antenna, numerical value of directivity must be

∞

0

1

any value

⇒ Which one of the following is correct? Energy of a power signal is

finite

zero

infinite

between 1 and 2

⇒ Magnetic deflection is inversely proportional to

voltage

(voltage)

^{0.5}(voltage)

^{1.5}(voltage)

^{2}⇒

**Assertion (A):** A sine wave with slew rate distortion looks rectangular

**Reason (R):** The maximum rate of output voltage change is called slew rate

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 colour on the extreme left in general purpose fixed resistors represents

first significant digit

tolerance

wattage rating

voltage rating

⇒ The maximum power that can be transferred to the load is resistor R

_{L}from the voltage source in the figur1 W

10 W

0.25 W

0.5 W

⇒ Covalent bond energy in Germanium is approximately

3.8 eV

4.7 eV

7.4 eV

12.5 eV

⇒ The useful operational life of INSAT-IB (launched in 1983) is expected to end by

1992-93

1991-92

1989-90

1993-94

⇒ Java's syntax is based on

C

C + +

Fortran 77

Pascal

⇒ In the network of figure it is desired that maximum power be supplied to Z

_{2}. The values of Z_{1}and Z_{2}are fixed. However the transformation ratio 'a' of transformer can be changed. The value of 'a' for maximum power transfe|Z

_{2}|/|Z_{1}|[|Z

_{2}|/|Z_{1}|]^{0.5}[|Z

_{2}|/|Z_{1}|]^{2}[|Z

_{2}|/|Z_{1}|]^{0.75}⇒ If X = - 285.56 and the Pascal write statement used is

`WRITE (X : 8).`

Then the print out will appear as-285.56

-2.85 E + 02

-2.85560 E + 02

-2.8 E + 02

⇒ M circles are symmetrical with respect to real axis.

TRUE

FALSE

⇒ Tellegen's theorem is applicable to

circuits with passive elements only

circuits with linear elements only

circuits with time invariant elements only

circuits with active or passive, linear or nonlinear and time invariant or time varying elements