Common carrier. A common carrier in common law countries (corresponding to a public carrier in civil law systems, usually called simply a carrier) is a person or company that transports goods or people for any person or company and that is responsible for any possible loss of the goods during transport.
Best Answer: Torque is a twisting force. It is the power output of an engine at one specific point in time. The first number, 200 in your expample, is the amount of torque. In America is is measured in foot/pounds. The second number, 400 in your example, is the RPM where that torque number occurs.
This SAE International Aerospace Standard covers requirements for micrometer adjustable, feel impulse, torque wrenches. The torque wrench is used to apply a pre-set torque to threaded fasteners and other torque requirements. SAE MA 4534A-2013 (SAE MA4534A-2013). Socket Wrenches, Hand (Metric) (Reaffirmed: May 1999 Jan 2004). This document has been declared Stabilized and will no longer be subjected to periodic reviews for currency.