A good ammeter should have a very low resistance so that very little of the energy of the current will be absorbed; the needle should be dead beat, and sufficiently sensitive to respond to minute variations of current.
When my tongue is set a-wagging, it is as long as my dog's when he is dead beat in chasing a hare; there's no hauling it in.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "dead beat" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.