engineering recuitment BHEL Engineer Trainee Mock Test 2025 Signals and Systems Linear Time Invariant Systems Continuous Time LTI Systems
Which of the following statements concerning the LTI system is correct?
1. If the impulse response of an LTI system is periodic and non-zero, then the system is unstable.
2. the inverse of a causal LTI system is always causal.
3. the cascade connection of a non-causal LTI system with a causal one necessarily produces a non-causal system.
1
1 only
2
1 and 2 only
3
2 and 3 only
4
1 and 3 only