engineering recuitment BHEL Engineer Trainee Mock Test 2025 Sensors and Industrial Instrumentation Piezoelectric Transducers
The following statements pertain to Fibre optic sensors used for data acquisition:
S1: Affected by electromagnetic interference, and radiated signals.
S2: Compatible with fibre optic communication systems.
S3: They do not conduct any electric current.
S4: Suited for taking measurements in environments that are explosive in nature.
Identify the INCORRECT statement(s).
1
S4 only
2
S1 and S4
3
S1 only
4
S3 only