Nicole Kidman and Keith Urban have a new baby, courtesy of a surrogate ... TMZ has learned. Sources tell us ... the baby was born at Centennial Medical Center in Nashville on December 28, 2010.
Quick Answer. When talking about dishwashers, decibels refers to the noise level a dishwasher produces when it is in operation. The quietest dishwashers have decibel ratings around 40 and slightly below, while the noise level in decibels of a normal conversation is about 60.
Ambient sound level for a fire control centre. 1  The ambient sound level within the fire control centre measured when all fire safety equipment is operating in the manner in which it operates in an emergency must not exceed 65 dB(A). 2  The measurement must be taken for a sufficient time to characterize the effects of all sound sources.