Lakshya Education MCQs

Question: __________ is the static characteristics of an instrument,
Options:
A.Response
B.Tine lag
C.Drift
D.Dynamic error
Answer: Option C

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Question 1. A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is
  1.    45°
  2.    -90°
  3.    -180°
  4.    -45°
Answer: Option D
Question 2. Photoelectric pyrometers are suitable in the temperature range of __________ °C.
  1.    400-1600
  2.    800-1600
  3.    800-2500
  4.    400-1000
Answer: Option B
Question 3. A mercury thermometer can not be used to measure the temperature below the freezing point of mercury, which is __________ °C.
  1.    -38.9
  2.    -11.9
  3.    -60.9
  4.    -80.9
Answer: Option A
Question 4. Which of the following is a desirable characteristic of an instrument?
  1.    High drift
  2.    High fidelity
  3.    High measuring lag
  4.    Poor reproducibility
Answer: Option B
Question 5. Which of the following is an undesirable dynamic characteristic of an instrument?
  1.    Reproducibility
  2.    Dead zone
  3.    Time lag
  4.    Static error
Answer: Option C
Question 6. Bourdon gauges are used for measuring pressure (kg/cm² )
  1.    < atmospheric
  2.    > 2 (gauge)
  3.    < 2 (gauge)
  4.    > 10 (absolute)
Answer: Option B

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