Top Dead Center, unless otherwise specified, refers to when the piston in cylinder number one reaches the closest it can be to the cylinder head. All the valves should be closed at this point.
over-head valve(s)
top dead center is what it stands for. top dead center
It stands for "Steamship."
UT, with regard to welding, stands for Ultrasonic Testing.
It stands for "Top Dead Center". It relates to a selected piston when it has reached the topmost travel in it's cylinder.
TDC
Interact System M series
if auto related it stands for top dead center and refers to the position of the crank in relation to the positon of the number one cylinder.
At TDC of the compression stroke for cyl #1, the cam lobes will be in a position such that they are putting no pressure on the valves, and valves are closed. At TDC of the exhaust stroke for cyl #1, the lobes will be in a position such that intake and exhaust valves may be open. Exhaust will be closing, and intake will be opening. There are two revolutions for the crank for one of the cam. TDC usually refers to TDC of the compression stroke, when valves are closed. This is when combustion/spark occurs, and is when the valves are adjusted on most engines.
TDC stands for "Texas Department of Criminal Justice," which is the agency responsible for overseeing the incarceration and rehabilitation of offenders in Texas. The term can also refer to the conditions or regulations within the Texas prison system. Inmates in TDC facilities may experience various programs aimed at rehabilitation, but conditions can vary widely across different facilities.
YMCA is the acronym for Young Mens Christian Association.
"FT" stands for Fourier Transform in FTIR spectroscopy.