True.
Also, in the Assistant, there is stated:
With auto connections (the default), the behavior is the same as with direct connections if the signal is emitted in the thread where the receiver lives; otherwise, the behavior is that of a queued connection.
I'm not sure it is reliable to change the thread affinity immediately after calling QThread::start(). The thread may not be started at that point yet. It's safer to move the object on the QThread::started() signal.
True.