how to monitor and control the temperature of the GPU(s) of one or more Tesla C1060 cards?

Is there a way to monitor the temperature of the GPU(s) of one or more TEsla C1060 cards?

How about to adjust the speed of their fans to maintain a certain temperature of the GPU, etc?

This is done automatically. For monitoring you can use nvidia-settings I believe. This has come up on the forum before, so a search should help.