Question

Match List I with List II 

 Choose the correct answer from the options given below: 
 

• A. A - IV, B - V, C - I, D - III, E - II
• B. A - III, B - II, C - I, D - IV, E - V
• C. A - V, B - IV, C - III, D - I, E - II
• D. A - V, B - III, C - IV, D - II, E - I

Hint:

To solve matching questions quickly, look for the most familiar pairs:
- Thermocouple always matches with Temperature to electrical energy (C - I).
- Spring always matches with Force to displacement (E - II).
These two matches are often enough to eliminate the incorrect options.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Transducers and measuring systems convert one physical parameter (such as temperature, velocity, or pressure) into another measurable quantity (such as force, displacement, or current) to allow for reading and recording.

Step 2: Detailed Explanation:
Let us match each measuring system with its corresponding conversion process:
- A. Pitot tube: A Pitot tube is used to measure fluid flow velocity by converting the kinetic energy of the fluid into potential energy (stagnation pressure).
Thus, it converts Velocity to pressure (IV).
- B. Bourdon tube: A Bourdon tube is a curved, hollow tube used in pressure gauges. When pressurized, the tube straightens slightly, causing its closed end to move.
Thus, it converts Pressure to displacement (V).
- C. Thermocouple: A thermocouple is a temperature sensor made of two dissimilar metals. It operates on the Seebeck effect, generating an electrical voltage when there is a temperature difference between the junctions.
Thus, it converts Temperature to electric current (I).
- D. Vanes: Vanes (such as those in a wind vane or rotary anemometer) are pushed by moving fluid currents, generating a mechanical force.
Thus, they convert Velocity to force (III).
- E. Spring: According to Hooke's Law (\(F = kx\)), a spring deforms (extends or compresses) linearly when a force is applied.
Thus, it converts Force to displacement (II).
The correct matching sequence is: A-IV, B-V, C-I, D-III, E-II.

Step 3: Final Answer:
The correct option is (A).