23.1145—Ignition switches.
        
        (b) 
         There must be means to quickly shut off all ignition on multiengine airplanes by the grouping of switches or by a master ignition control.
    
    
        
        (c) 
         Each group of ignition switches, except ignition switches for turbine engines for which continuous ignition is not required, and each master ignition control must have a means to prevent its inadvertent operation.