For the 2015 model year, Ford (NYSE:F) is launching an updated version of its popular F-150 pickup truck with major changes, including new engine options and an aluminum body.
Party and play (PNP and PnP) is a subculture of recreational drug users who engage in high risk sexual activities under the influence of drugs within groups. The term is often but not always used by and associated with gay men and other men who have sex with men (MSM).
Now, one of the old guys! In PLC work NPN means the sensor or switch connects to the negative of the power supply. When the sensor is made up it connects the plc input to the negative and makes up the PLC input point. The PNP is the same except it connects the PLC input to the positive side of the supply. In most of my plc work we use NPN type sensors.