How do you speak liable?

How do you pronounce Liabel?

How do you say vicarious liability?

Vicarious liability Pronunciation. Vi·car·i·ous li·a·bil·i·ty.

Is the T silent in exactly?

In practice, yes it is virtually silent unless one makes a special effort to pronounce it. When we have a consonant cluster here /ktl/ one sound is often not heard. The linguistice term for it is “dissimilation”.