# Baluns Online Exam Quiz

Baluns GK Quiz. Question and Answers related to Baluns. MCQ (Multiple Choice Questions with answers about Baluns

### Among current Balun and voltage Balun, which works better?

**Options**

A : Current Balun

B : Voltage Balun

C : Both work equally

D : Depends the power supply

### Binomial array has high HPBW compared to Dolph-chebychev.

**Options**

A : TRUE

B : FALSE

C : -

D : -

### Dolph- Chebyshev becomes a Binomial array when there are no side lobes.

**Options**

A : TRUE

B : FALSE

C : -

D : -

### For a 4: 1 Balun, what is the unbalanced impedance if the balanced impedance is 2K??

**Options**

A : 8K

B : 0.5K

C : 4K

D : 2K

### For an unbalanced to balanced signal conversion, if the turn's ratio in a Balun is 1:2 then the balanced impedance is __ times the unbalanced impedance.

**Options**

A : 4

B : 2

C : \frac{1}{2}

D : \frac{1}{4}

### The excitation amplitudes of the binomial array follow __

**Options**

A : Pascal's triangle

B : Bermuda triangle

C : Right angled triangle

D : Natural squares

### The phase difference between the outputs of Balun in frequency domain is __

**Options**

A : 180?

B : 120?

C : 60?

D : 90?

### What will be the array factor in polynomial form for the 3 element binomial array if Z=e^(-i?)?

**Options**

A : 1+2z+z2

B : 1+3z+3z2+z3

C : 1+2z+3z2+z3

D : 1+3z+z2

### Which of following is the disadvantage of the binomial array?

**Options**

A : It has low amplitude variations

B : It has high range of amplitude variations

C : It has a high HPBW

D : It has low HPBW

### Which of the following array is used to synthesize pattern without side lobes?

**Options**

A : Binomial array

B : Linear array

C : End-fire array

D : Chebyshev array

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