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Q1. | The scale of a dynamometer is linear when used as |

A. | ammeter [Wrong Answer] |

B. | voltmeter [Wrong Answer] |

C. | wattmeter [Correct Answer] |

D. | both (a) and (c) [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss 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 :**

⇒ Nichols chart consists of

constant magnitude loci

constant phase angle loci

magnitude and phase angle loci in log-magnitude versus phase diagram

none of the above

⇒ A single phase energy meter has the rating 1200 resolutions/ kWh. If a 500 W electric gadget is used for 4 hours, the energy meter will make

1200 revolutions

1800 revolutions

2100 revolutions

2400 revolutions

⇒ In which function is each term known as maxterm?

SOP

POS

Hybrid

SOP and Hybrid

⇒ In a transmission line, losses due to dielectric heating are

proportional to voltage and inversely proportional to Z

_{0}

proportional to voltage and proportional to Z

_{0}

proportional to current and proportional to Z

_{0}

proportional to current and inversely proportional to Z

_{0}

⇒ In figure I

_{D}= 4 mA. Then V

_{S20 V4.4 V0.4 V0.44 V}

⇒ Which of the following oscillator circuits uses three capacitors in the phase shifting network?

Hartley

Clapp

Colpitt's

Both (b) and (c)

⇒ Transport lag usually exists in

thermal systems

hydraulic systems and thermal systems

pneumatic systems

thermal, hydraulic and pneumatic systems

⇒

Match the following:

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

A. | Reactance theorem | 1. | Foster |

B. | Driving point impedance | 2. | Bartlett |

C. | Continued fraction expansion | 3. | Cauer |

D. | Bisection Theorem | 4. | Positive real function |

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

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

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

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

⇒ The charges between a hollow and solid metal spheres reside

through out in both

on outer surface in hollow and through out in solid

on the outer surface in both

none of the above

⇒ Which of the following devices has two gates?

SCR

SCS

SUS

SBS

⇒ An antenna is synonymous to a

generator

transformer

regulator

reflector

⇒ In following figure, what will be R

_{1}and R

_{2}for maximum symmetrical swing if V

_{CSat}≈ 0. Given that R

_{E}= 200 Ω, R

_{C}= 400 Ω, V

_{CC}= 20 V, β

6 k

3 k, 6 k

9.9 k, 2.4 k

2.4 k, 9.9 k

⇒ BPSK stands for

Binary Phase Shifting Key

Broad Phase Shifting Key

Bit Phase Shifting Key

Binary Pulse Shifting Key

⇒ Between which points does UJT exhibit negative resistance characteristics

between peak and valley points

before peak point

after peak point

after valley point

⇒ 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}

⇒ For emitter-couple logic, the switching speed is very high because

negative logic is used

the transistors are not saturated when conducting

emitter-coupled transistors are used

multi-emitter transistors are used

⇒ In the above case if another sine wave corresponding to 40% modulation is transmitted simultaneously, the total radiated power will be

9.9 kW

10.15 kW

10.84 kW

18.4 kW

⇒ For an ideal noise free transistor amplifier the noise factor is

zero

zero dB

1 dB

depends on other factors

⇒ A system has 12 poles or 2 zeros. Its high frequency asymptote in its magnitude plot has slope of

-200 dB/decade

-240 dB/decade

-280 dB/decade

-320 dB/decade

⇒ Which of the following is not a valid real constant in C?

1.2

*e*2.0

-2.3

*e*- 2

-2.3

*E*2

-2.3

*e*2

⇒ In PCM, the information lies

in one or two properties of the pulse

in absence of pulse

in presence of pulse

in presence or absence of pulse

⇒ If X(

*z*) = 2

*az*

^{-1}/(1 -

*az*

^{-1})

^{3}and |

*a*| < |

*z*|, then the initial value

*x*

_{0}is

0

1

∞

2

⇒ Which of the following is the poorest conductor of electricity?

Copper

Aluminium

Manganin

Nichrome

⇒

Match the following:

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

A. | loop antenna | 1. | flat line |

B. | folded dipole | 2. | 300 W |

C. | SWR of 1 | 3. | sharp broadside full |

D. | VHF band | 4. | 30 to 300 MHz |

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

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

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

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

⇒ A line is excited by a 100 V, 200 ohm source and is terminated by 100 Ω resistance. If the voltage on line reaches steady value in 80

*ns*, the natural resonant frequency is

100 MHz

50 MHz

12.5 MHz

6.25 MHz

⇒ Consider the following library functions

- EXP (
*i.e., e*^{x}) - ARCTAN (
*i.e.* tan^{-1} *x*) - SQRT (
*i.e., x*) - AES (
*i.e. *|*x*|) <

All

1 and 3 only

1, 3, 4 only

1, 2 and 3 only

⇒ An impulse train is

a number of pulses

a number of pulses spaced from each other

a number of pulses all originating together

none of the above

⇒ The given figure shows a constant current source driving a parallel RC circuit. It is equivalen

a lag network

a lead network

a lag-lead network

either (a) or (b)

⇒ In static RAM 6264 the number of address inputs are

10

12

13

15

⇒ Germanium and Si phosphorus have their maximum spectral response in the

infrared region

ultraviolet region

visible region

X-ray region

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