Electric Choke on Carter AFB

I hooked up the Electric choke on my Carter AFB and turned the key on and the choke blades didn't move. I thought the blades closed when the ignition is turned on. The blades are already pretty closed to start with. Is this correct? Do the blades open as it warms up, but starts out closed. The ambient tmeperature was about 75 deg F and the car hasn't been started.

Thanks

bwhitejr