Dynamics Of Instrument Systems(Instrumentation Transducers ) Questions and answers for exam Preparation

Question 1. Which of the following is true for ideal filter frequency response?

Abrupt change from pass band to reject band
Smooth change from pass band to reject band
Contains only pass band
None of the mentioned

Explanation:-

Answer: Option A. -> Abrupt change from pass band to reject band
Answer: (a).Abrupt change from pass band to reject band

Question 2. Which of the following is true for low-pass filter?

Pass band less than cut-off frequency
Pass band greater the cut-off frequency
Pass band anywhere in frequency response
None of the mentioned

Explanation:-

Answer: Option A. -> Pass band less than cut-off frequency
Answer: (a).Pass band less than cut-off frequency

Question 3. Which of the following represents bridge-T filter?

Band pass filter
Low pass filter
High pass filter
Band reject filter

Explanation:-

Answer: Option D. -> Band reject filter
Answer: (d).Band reject filter

Question 4. Twin-T filter is band reject and Notch filter is band pass filter.

True
False
May be True or False
Can't say

Explanation:-

Answer: Option B. -> False
Answer: (b).False

Question 5. Notch filter belongs to _________________

Zero-order system
First-order system
Second-order system
Third-order system

Explanation:-

Answer: Option D. -> Third-order system
Answer: (d).Third-order system

Question 6. Identify the frequency response?

Low pass filter
High pass filter
Band pass filter
Band reject filter

Explanation:-

Answer: Option C. -> Band pass filter
Answer: (c).Band pass filter

Question 7. Tuned LCR circuit forms band-pass filters.

True
False
May be True or False
Can't say

Explanation:-

Answer: Option A. -> True
Answer: (a).True

Question 8. Which of the following statement is true?

Lead network is composed of capacitor only
Lag network is composed of inductor only
Lead network is composed of resistance only
Lead network and lag network is composed of resistance and capacitor

Explanation:-

Answer: Option D. -> Lead network and lag network is composed of resistance and capacitor
Answer: (d).Lead network and lag network is composed of resistance and capacitor

Question 9. Why dynamic compensation is used?

To increase pass band
To increase cut off frequency
To improve dynamic performance
None of the mentioned

Explanation:-

Answer: Option C. -> To improve dynamic performance
Answer: (c).To improve dynamic performance

Question 10. Rejection frequency of notch filter can be expressed as _________________

1/RC
1/C
1/R
Unpredictable

Explanation:-

Answer: Option A. -> 1/RC
Answer: (a).1/RC