I guessed correctly, but I assume the equipment is subject to change. They are looking for a willingness to participate and have a go, even if you have no idea what you're doing, so don't worry if you're not an engineer! Be confident and look for clues, like units or gauges, to determine the type of sensor or tool.
I have had three interviews for two seperate roles. First role I progressed to the Face to face on site in Solihul, both telephone was with senior interim and another First telephone, it was a information gathering session.