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FIR Filter Question & Answers

March 21, 2022 By WatElectronics

This article lists 50 FIR Filter MCQs for engineering students. All the FIR Filter Questions and Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on FIR Filter.

A digital filter is an electronic device for digital signal processing, designed to isolate noise from the signal. They are used for calculating signal performance depending on discrete-time, sampled-based signals.

A finite Impulse filter (FIR) is a filter with impulse response of a finite period that operates on present and past types of input values. FIR filter is designed using adders, multipliers, and logic gates. The output obtained from the FIR filter is a linear form.

Boxcar, Hilbert transformer, and differentiator are the different types of FIR filters. FIR filters are classified into 4 types namely symmetric even also called Type 1, symmetric odd Types 2 and asymmetric even also called Type 3, and asymmetric odd also called type 4.

MATLAB, GNU Octave, and Scilab software are used for designing filters. The advantages of the FIR filter include linear phase, ease in the implementation, and represent values in fractional arithmetic. The disadvantages of the FIR filter include high storage space, more delay, and difficulty in implementation. The application of the FIR filter includes data communication, crossover filter, and mastering.

1). FIR stands for ____?
HintSettles to zero in finite time.
2). Filters are classified in to ___ number of types?
HintEven number.
3). Which of the following is the impulse response of FIR filter?
HintBounded values.
4). FIR filters operate on ___ type of input values?
Hint2 values.
5). FIR filter is also called ____?
HintContains bounded coefficients in the impulse response h[n].
6). The output obtained from FIR filter is _____ form?
HintInput = Output.
7). FIR filter implements _____ transfer function?
HintNull.
8). Which of the following are the special type of FIR filter?
Hint3 types.
Read more about Op-amp Differentiator
9). Which of the following is the impulse response of Nth order discrete time FIR filter before it reaches to zero?
HintSum of terms.
10). A filter allows _____ component of signal?
HintAperiodic values.
11). A filter does not allows _____ component of signal?
HintPeriodic signal.
12). FIR filters are classified in to ____ number of types?
HintEven number.
13). Identify the type of response of FIR filter below.
Graph

Graph

Hint1,3,5,7.... are ___ numbers.
14). Identify the type of response of FIR filter below.
Graph

Graph

Hint2,4,6,8...... are which numbers.
15). Identify the type of response of FIR filter below.
Graph

Graph

Hint1,3,5,7.... are ___ numbers.
16). Identify the type of response of FIR filter below.
FIR Response Types Graph

FIR Response Types Graph

Hint2,4,6,8...... are which numbers.

FIR Filter Questions and Answers

17). Which of the following is the formula of symmetric impulse response of FIR filter?
HintPositive value.
18). Which of the following is the formula of anti-symmetric impulse response of FIR filter?
Add description here!
HintNegative value.
19). Which of the following are requirements for designing a FIR filter?
Hint3 requirements.
20). Which of the following are the components used in FIR filter?
HintPassive components.
21). Design of filter depends on which of the following factors of FIR filter?
Hint2 parameters.
22). Which of the following software is used for designing filter?
Hint3 software's.
23). Which of the following are the applications of MATLAB?
Hint3 applications.
24). Which of the following are the parameters of FIR filter?
Hint3 parameters.
25). Which of the following is the input form of digital radio filter?
HintPhysical quantities.
26). Which of the following is the output form of digital radio filter?
Hint0's and 1's.
27). Which of the following are the properties of FIR?
Hint3 properties.
28). Which of the following are the application of FIR filter?
Hint3 applications.
29). At which of the following frequency stages of receiver FIR filter functions in digital communication?
HintSemi-processed value.
30). Which of the following are the advantages of FIR filter?
Hint3 advantages.
31). Which of the following are the disadvantages of FIR filter?
Hint3 disadvantages.
32). How many methods are used to determine the frequency coefficient of filter?
HintOdd number.

FIR Filter MCQs for Interviews

33). A maxima filter design method is also called ____?
Hint3 methods.
34). Which of the following type of algorithm is used for finding optimal equiripple coefficient of FIR filter?
HintApproximations by functions in a Chebyshev space.
35). Equiripple FIR filter method uses ____ algorithm?
Hint2 algorithms.
36). How many methods are used for designing spectrum?
HintEven number.
37). Which of the following components are used in practically sketching spectrum?
Hint2 components.
Read more about Digital Oscilloscope.
38). Which of the following band of noise is used as input signal in indirect method of filter spectrum design method?
HintMore noise.
39). A window design method is used for designing ____ filter?
HintA property applying to many linear time-invariant systems.
40). Which of the following is the output function given by the equation x(n)=1, for n=0,x(n)=0 and for n!=0?
HintReaction of any dynamic system in response to some external change.
41). Which of the following is the signal type of discrete time function, u(n)=n; for n>=0; u(n)=0 for n<0?
42). Which of the following are the advantages of DSP?
Hint3 advantages.
43). A system with zero bounded output for bounded based input is ____?
HintA signal that exists for positive as well as negative time .
44). Which of the following is the main purpose of FIR filter design?
HintMinimum SNR value.
45). The delay in window design method results ___ phase?
HintInput = Output.

FIR Filter MCQs for Quiz

46). If the area under the side lobes of filter graph is high then the value of ripple is high in ___ band?
Hint2 types of bands.
47). In Window design method the ideal frequency response has ____ impulse response?
HintHigher value.
48). Which of the following are the universal logic gates?
HintUniversal gates.
Read more about NAND
49). Which of the following are basic logic gates?
Hint3 gates.
Read more about OR Gate
50). How many inputs a half adder has?
HintEven number.

For More MCQs

  • Low Pass Filter Questions & Answers
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