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Q1. | The voltage of single phase supply to residential consumers in India is |

A. | 400 V [Wrong Answer] |

B. | 230 V [Correct Answer] |

C. | 2.2 kV [Wrong Answer] |

D. | 11 kV [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss 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 TRIAC is equivalent to

two thyristors in series

two thyristors in parallel

one thyristor and one diode

one thyristor and one transistor

⇒ In a semiconductor material. The hole concentration is found to be 2 x 2.5 x 10

^{15}

*cm*

^{-3}. If mobility of carriers is 0.13

*m*

^{2}/

*v-s*. Then find the current density if electric field intensity is 3.62 x 10

^{-19}

7.6237 x 10

^{-4}A/

*cm*

^{2}

7.6237 x 10

^{-5}A/

*cm*

^{2}

7.6237 x 10

^{-3}A/

*cm*

^{2}

none of these

⇒ One of the following can be used to generate a pulse whenever triggered

flip-flop

monostable multivibrator

stable multivibrator

Schmitt trigger

⇒ Both Impatt and Trapatt devices use avalanche effect

TRUE

FALSE

⇒ Which of these triggering methods for series connected SCRs use LASCR in the gate circuit?

Resistance triggering

Simultaneous triggering

Sequential triggering

Optical triggering

⇒ Microprocessor 8088 has

16 bit registers and 16 bit data bus

8 bit registers and 8 bit data bus

8 bit registers and 16 bit data bus

16 bit registers and 8 bit data bus

⇒ Maxwell's curl equation for the static electric field E can be expressed as

Δ x E = 0

Δ x E = constant

Δ - E = constant

Δ . E = 0

⇒ For an insulating material, dielectric strength and dielectric loss should be respectively

high and high

low and high

high and low

low and low

⇒ A counter has 4 flip flops. It divides the input frequency by

4

2

8

16

⇒ Let the initial contents of

`ACC and CY`

in 8085 be - CY = 1
- ACC = 10000001

After the instruction `RAL`

is executed twice the contents of `CY and ACC`

respectively will be1 and 00000011

0 and 00000111

1 and 00000111

0 and 00000011

⇒ Which of the following radio waves are not reflected by ionosphere?

Waves above 1 kHz

Waves above 1 MHz

Waves above 10 MHz

Waves above 30 MHz

⇒ Magnetic deflection is inversely proportional to

voltage

(voltage)

^{0.5}

(voltage)

^{1.5}

(voltage)

^{2}

⇒ The circuit in figure has reached steady values with switch open. If switch is closed at

*t*= 0 the voltage across 2 μF capacitance at

*t*= 0

^{+zero4 V6 V10 V}

⇒ An

*m*derived low pass filter has

*f*

_{c}= 1000 Hz and

*m*= 0.6. This filter will have infinite attenuation at

*f*= 1250 Hz

all frequencies above 1000 Hz

*f*= 1562.5 Hz

*f*= 1666.67 Hz

⇒ If

*u*is input,

*y*is output and

*a*,

*b*are constants, the system

*y*=

*au*+

*b*

is linear

is nonlinear

may be linear or nonlinear dependig on values of

*a*and

*b*

may be linear or nonlinear depending on value of

*u*

⇒ The circumference of an electron orbit is equal to integer times the wavelength of electron.

TRUE

FALSE

⇒ A

*n*-type silicon sample contains a donor concentration of N

_{d}= 2 x 10

^{16}cm

^{-3}. The minority carrier hole lifetime is t

_{p0}= 5 μs. The thermal equilibrium generation rate of hole is:

1.125 x 10

^{9}cm

^{-3}s

^{-1}

0.625 x 10

^{9}cm

^{-3}s

^{-1}

4.5 x 10

^{9}cm

^{-3}s

^{-1}

2.25 x 10

^{9}cm

^{-3}s

^{-1}

⇒ The minimum number of comparators required to build an 8 bit flash ADC is

8

63

255

256

⇒ The maximum concentration of the element which can be dissolved in solid silicon at a given temperature is termed as

Solid solubility

Dissolution coefficient

Solidification index

Concentration index

⇒ A certain transistor has a

_{dc}of 0.98 and a collectors leakage current of 5 μA. If I

_{E}= 1 mA, the base current will be

35 μA

25 μA

15 μA

5 μA

⇒ Breakdown in dielectric may be

electrical breakdown

thermal breakdown

electrochemical breakdown

any of the above

⇒ If the peak transmitted power in a radar is increased by a factor 81, the maximum range is increased by a factor of

3

9

27

81

⇒ The full form of the abbreviations TTL and CMOS in reference to logic families are

Triple Transistor Logic and Chip Metal Oxide Semiconductor

Tristate Transistor Logic and Chip Metal Oxide Semiconductor

Transistor Transistor logic and Complementary Metal Oxide Semiconductor

Trisate Transistor Logic and Complementary Metal Oxide Silicon

⇒ The Boolean function A + BC is a reduced form of

AB + BC

(A + B) . (A + C)

AB + ABC

(A + C) . B

⇒ At room temperature the number of conducting electrons in an intrinsic semiconductor

is almost equal to the number of valence electrons

is about half the number of valence electrons

is small as compared to the number of valence electrons

is a very small fraction of the number of valence electrons

⇒ Two coils X and Y have self inductances of 5 mH and 10 mH and mutual inductance of 3 mH. If the current in coils X change at a steady rate of 100 A/s, the emf induced in coil Y is

0.3 V

0.5 V

1 V

1.5 V

⇒ The velocity factor of a transmission line

mainly depends on the skin effect

is always higher for a solid dielectric than for air

mainly depends on the dielectric constant of the material used

increases the velocity along the transmission line

⇒ Voltage standing wave pattern in a loss less transmission line with characteristic impedance 50 Ω and a resistive load is shown in the figu

50 Ω

200 Ω

12.5 Ω

0 Ω

⇒ A resistor of 10 kΩ has an rms noise voltage of 1 mV under a certain set of conditions. A resistor of 20 kΩ under the same conditions will have an rms noise voltage of

1 mV

2 mV

1.414 mV

4 mV

⇒ The resonant frequency of the circuit shown in figure

1/22p Hz

1/2p Hz

1/4p Hz

1/2p Hz