Hazard a boolean algebra does not account for propagation delays through signal paths of actually circuits The delay can cause glitches to occur. a glitch is an unwanted signal, usually a short pulse caused by the transient behavior of signal path that have different delays a a hazard exists any time the potential for itches is present a Glitches may not be a problem or they may create havoc. It depends on the specif ic application. Boolean algebra does not account for propagation delays through signal paths of actually circuits.  The delay can cause glitches to occur. A glitch is an unwanted signal, usually a short pulse caused by the transient behavior of signal path that have different delays  A hazard exists any time the potential for glitches is present.  Glitches may not be a problem or they may create havoc. It depends on the specific application. Hazard