The signal permits a train to proceed cautiously after halt at the main signal

Number of switches provided on a Gaunt-letted track is

The distance through which the tongue rail moves laterally at the toe of the switch for movement of trains is called

The arrangement of rails which permit trains to cross another track and also to divert to the other track, is called

Yellow light signal indicates

When semaphore and warner are installed on the same post, then the stop indication is given when

To indicate the presence of train on the track, the one end of rail is connected through resistances and the other end of rail is connected with relay the arrangement called as

The points and signal are set in such a way that the cabin man cannot lower the signal for the reception of a train unless the corresponding points have been set and locked the system is known as _____________________________