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Q1. | Watthour meter is an integrating instrument |

A. | TRUE [Correct Answer] |

B. | FALSE [Wrong Answer] |

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

⇒ The number of flip-flops needed to divide the input frequency by 32 is

2

4

5

16

⇒ The Hall constant in Si bar is given by 5 x 10

^{3}cm

^{3}/ coulomb, the hole concentration in the bar is given by

10

^{5}/cm

^{3}

1.25 x 10

^{15}/cm

^{3}

1.5 x 10

^{15}/cm

^{3}

1.6 x 10

^{15}/cm

^{3}

⇒ Access time of a storage is the time required

to write one word into the memory

to read one word from the memory

to write one word into and to read one word from the memory

either to write one word or to read one word

⇒ For an RC impedance function

all poles lie on

*j*ω axis

all poles are simple ,

all poles are simple and lie on negative real axis

none of the above

⇒ Which one of the following is a transferred electron device?

BARITT diode

IMPATT diode

TRAPATT diode

Gunn diode

⇒ Which of the following is a valid variable in FORTRAN 77?

0.125

ALPHA -3

ALPHA 3

BALPHAC

⇒ How many and which types of machine cycles are needed to execute PUSH PSW by 8085 microprocessor?

2, Fetch and memory write

3, Fetch and memory write

3, Fetch and memory read

3, Fetch and memory read and memory write

⇒ If the variance σ

_{x}

^{2}of

*d*(

*n*) =

*x*(

*n*) -

*x*(

*n*- 1) is one-tenth the variance σ

_{x}

^{2}of a stationary zero mean discrete time signal

*x*(

*n*), then the normalized autocorrelation function R

_{xx}(

*x*)/σ

_{x}

^{2}at

*k*= 1 is

0.95

0.9

0.1

0.05

⇒ Symbol shown in figure represen

P-channel DEMOSFET

N-channel DEMOSFET

UJT with N-type base

UJT with P-type base

⇒ The clear data and present input of the JK flip-flop are known as

direct inputs

synchronous inputs

indirect inputs

either direct inputs or synchronous inputs

⇒ A line has standing waves with a voltage maximum of 35 mV and minimum of 17.5 mV VSWR is

2

4

0.5

0.25

⇒ Power gain of antenna equals directive gain in VHF and UHF range if and only if efficiency of the antenna is __________ .

0.25

0.5

0.75

1

⇒ What kind of signal does the times produce?

Single pulse

Square wave

Continuous pulse

No signal

⇒ In intrinsic semiconductor the increase in conductivity per degree increase in temperature is about

0.02

0.06

0.15

0.25

⇒ Covalent bond energy in Germanium is approximately

3.8 eV

4.7 eV

7.4 eV

12.5 eV

⇒ In the case of the circuit shown in the figure, the collector current I

_{C}will be, if β = 100, V

_{BE}= 0.7 V, I

_{CO}= 0.1 βA at 20&d

2.26 mA

1.85 mA

0.357 mA

0.185 mA

⇒

Match the following:

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

A. | p type semiconductor | 1. | silicon |

B. | n type semiconductor | 2. | holes are majority carriers |

C. | Intrinsic semiconductor | 3. | electrons are majority carriers |

D. | Tungsten | 4. | is a metal |

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

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

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

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

⇒ A varactor diode is

reverse biased

forward biased

biased to breakdown

unbiased

⇒ A sample of N type semiconductor has an electron density of 6.25 x 10

^{18}/cm

^{3}at 300 K. If intrinsic concentration of carriers in this sample is 2.5 x 10

^{13}/cm

^{3}at this temperature, the hole density is

10

^{6}/ cm

^{3}

10

^{8}/ cm

^{3}

10

^{10}/ cm

^{3}

10

^{12}/ cm

^{3}

⇒ In calculating output impedance of an amplifier the source is replaced by an open circuit.

TRUE

FALSE

⇒ If C is spring constant and θ is deflection, controlling torque is

Cθ

C/θ

θ/C

C

^{2}θ

⇒ In a horizontal polarized wave

magnetic field is perpendicular to ground

magnetic field component is parallel to ground

electric field component is perpendicular to ground

electric field is parallel to ground

⇒ Which one is a non-causal system?

*y*(

*n*) =

*x*(2

*n*)

*y*(

*n*) =

*x*(

*n*/2)

*y*(

*n*) =

*x*(

*n*/2) +

*x*(

*n*)

all

⇒ In spread spectrum technique

a modulated signal is modulated again

a modulated signal is modulated twice again

the power of a modulated signal is increased

the noise component of a modulated signal is decreased

⇒ Consider the following statements : A clamper circuit

- adds or subtracts a dc voltage to a waveform
- does not change the waveform
- amplifiers the waveform

1, 2

1, 3

1, 2, 3

2, 3

⇒ In 8085 the address space size is

64 kbits

64 k bytes

32 kbits

16 k bytes

⇒ Probability of error in DPSK is less than PSK

TRUE

FALSE

equal

depend upon noise

⇒ If the radiated power of AM transmitter is 10 kW, the power in the carrier for modulation index of 0.6 is nearly.

8.24 kW

8.47 kW

9.26 kW

9.6 kW

⇒ During processing the instructions, data, intermediate results and final results in a computer are held in

CPU

ALU

Primary memory

Secondary memory

⇒ The auto correlation of a sampling function is a

triangular function

gate function

signum function

none of the above