# Factors Online Exam Quiz

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

### Electrical size of antenna is increased by which of the following?

Options

A : Antenna Array

B : Decreasing the coverage area

C : Increasing the coverage area

D : Using a single antenna

### Find the angle at which nulls occur for the two element array antenna with separation ?/4 and phase difference is 0?

Options

A : Doesn't exist

B : 0

C : ?/2

D : ?/4

Options

A : 0

B : ?/2

C : ?/4

D : ?

Options

A : 0

B : ?/2

C : ?/4

D : ?

### For long distance communication, which of the property is mainly necessary for the antenna?

Options

A : High directivity

B : Low directivity

C : Low gain

D : Broad beam width

### For N- element linear uniform array, the normalized array factor is represented as __

Options

A : \frac{sin(N?/2)}{N?/2}

B : \frac{cos(N?/2)}{N?/2}

C : N\frac{sin(?/2)}{?/2}

D : N\frac{cos(N?/2)}{N?/2}

### Multiplying the normalized field with the normalized array factor gives ___

Options

A : pattern multiplication

B : array factor

C : beamwidth

D : null

Options

A : TRUE

B : FALSE

C : -

D : -

### Which of the following is false about the single antenna for long distance communication?

Options

A : Enlarging may create side lobes

B : No side lobes

C : High directivity is required

D : High Gain is required

### Which of the following is false regarding Antenna array?

Options

A : Directivity increases

B : Directivity decreases

C : Beam width decreases

D : Gain increases

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