Which is wrong statement for surge absorber?

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PGCIL NER DT (Electrical) 27 Feb 2022 Official Paper

Device to protect electrical equipment from over-voltage transients caused by external or internal events.
Increase the steepness of wave front of a surge
Used for protection against low-voltage high-frequency oscillations.
Surge arresters are not generally designed to protect against a direct lightning strike to a conductor

Answer 1

Surge absorber

A surge absorber is a protective device that absorbs high-voltage surges and reduces the steepness of the surge wavefronts.
The traveling waves set up by the surges on the transmission lines caused due to lightning and electrostatic induction possess an amplitude of 10 to 15kV, which has the ability to damage the equipment connected to that line.
It is also used for protection against low-voltage high-frequency oscillations.
The surge absorber overcomes the drawback of the surge arrester.
Surge arresters are not generally designed to protect against a direct lightning strike to a conductor.
A surge arrester limits the voltage on equipment by discharging or bypassing surge current.