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Q1. | The current rating of a cable depends on |

A. | length of cable [Wrong Answer] |

B. | diameter of cable [Correct Answer] |

C. | both length and diameter of cable [Wrong Answer] |

D. | none of the above [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 :**

⇒ In a proportional plus integral control action

proportional gain K

*is adjustable but integral time T*

_{p}*is constant*

_{i}proportional gain K

*is adjustable but integral time T*

_{p}*is adjustable*

_{i}both proportional gain K

*and integral time T*

_{p}*are adjustable*

_{i}both proportional gain K

*and integral time T*

_{p}*are constant*

_{i}⇒ The depletion layer around

*p*-

*n*junction in JFET consists of

hole

electron

immobile charges

none of the above

⇒ The power requirement of a RADAR used in military operations is

a few watts

about 500 W

about 2000 W

a few megawatts

⇒ Zero suppression is not used in actual practice.

TRUE

FALSE

⇒ Which one of the following is a regulated power supply?

IC 555

IC 844

IC 3080

IC 723

⇒ The temperature below which certain materials are antiferromagnetic and above which they are paramagnetic is called

Weiss temperature

Curie temperature

Neel temperature

None of the above

⇒ (9)

_{11}x (9)

_{13}x(9)

_{15}= (?)

_{16}

933

2D9

339

9AB

⇒ Which of the following best represents the input impedance of an actual op-amp?

10 ohm

1 k ohm

1 M ohm

100 M ohm

⇒ What will be conversion time of a successive approximation A/D converter which uses 2 MHz clock and 5 bit binary ladder containing 8 V reference.?

2.5 μ sec

25 μ sec

3 μ sec

4 μ sec

⇒ A fascimile reproduction has a specification of 200 lines per frame, progressive scanning and 5 frames per second. The time to scan one line is

5 ms

2.5 ms

1 ms

0.1 ms

⇒ The magnitudes of OC and SC input impedances of a transmission line an 100 Ω and 25 Ω. The characteristic impedance is

25 Ω

50 Ω

75 Ω

100 Ω

⇒ The voltage at which Avalanche occurs is known as

cut in voltage

barrier voltage

breakdown voltage

depletion voltage

⇒ Which of the following is the common feature between FETs and bipolars?

Have low input impedance

Have low voltage gain

Are difficult to bias

None of them

⇒ RMS value is always higher than average value.

TRUE

FALSE

⇒ The minimum sampling frequency in sample/sec. required to reconstruct the following signal from its samples wuthout distor

2 x 10

^{3}

4 x 10

^{3}

6 x 10

^{3}

8 x 10

^{3}

⇒ The frequency tolerance for the RF carrier in the standard AM radio broadcast band is

zero

+20 Hz

+1000 Hz

+25 Hz

⇒ Point out the false statement

impulse noise voltage does not depend on bandwidth

thermal noise is independent of frequency at which it is measured

industrial noise is mostly of impulse type

space noise is observable at frequencies in the range of 8 MHz and higher

⇒ If (225)

_{Y}= (165)

_{8}find value of Y

7

8

9

11

⇒ The number of branches of root locus plot is equal to

the number of roots of characteristic equation

double the number of roots of characteristic equation

the number of roots of characteristic equation minus one

the number of roots of characteristic equation plus one

⇒ Which of the following pulse communication system is inherently immune to noise?

PPM

PCM

PWM

PAM

⇒ For the circuit of the given figure, the output equatio

Y = ABCD

Y = AB + CD

Y = A + BCD

Y = ABC + D

⇒ For static electric and magnetic fields in an homogenous source-free medium, which of the following represents the correct form of Maxwell's equations?

Δ.E = 0

Δ.E = 0

Δ x E = 0

Δ x E = 0

⇒

**Assertion (A):** A slight change in pole-zero configuration can cause only minor changes in root locus configuration.

**Reason (R):** Asymptotes show the behaviour of root loci for |*s*| >> 1

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

⇒ Which of the following is true in a tape recorder?

Vow is due to variation in motor speed but flutter is due to some other reason

Both vow and flutter are due to variations in motor speed

Flutter is due to variation in motor speed but vow is due to some other reason

Neither vow nor flutter is due to variation in motor speed

⇒ Reciprocity theorem is applicable to

circuits with one source

circuits with only one independent source

circuits with any number of sources

circuits with any number of independent sources

⇒ When subjected to alternating stresses, an insulating material is characterised by complex dielectric constant ∈

^{'}

_{r}-

*j*∈

^{"}

_{r}. In such materials, the dielectric losses under alternating stress is proportional

∈

^{"}

_{r}

both ∈

^{'}

_{r}and ∈

^{"}

_{r}

∈

^{'}

_{r}

(∈

^{"}

_{r})

^{2}

⇒

Match the following:

List I (Set operation) | List II (Set operator) | ||
---|---|---|---|

A. | Set equality | 1. | - |

B. | Set inclusion | 2. | = |

C. | Set intersection | 3. | < = |

D. | Set difference | 4. | ∗ |

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

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

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

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

⇒ If J = 12 and X = 24.4 the result of the following FORTRAN 77 program will be

15.0, 144.0, 73.2

15.0, 144.0, 73

15. 144. 73

⇒ The numerical value of directive gain may lie between

1 and + 1

0 and 1

0 and ∞

1 and ∞

⇒ Consider the following statements

- Dissipative attenuator has a fixed value of attenuation.
- Reflective attenuator has a fixed value of attenuation.
- Both dissipative and reflective attenuators are available only with fixed attenuation.
- Both dissipative and reflective attenuators are available with either fixed or variable attenuation.

1 only

1 and 2

1, 2 and 3

4 only