which valve in figure must be isolated to prove or flush the level gauge glass?

what can happen if you donot tell the control room operator to bypass any level monitoring instrument before flushing or draining?

why is a bypass line on a deadleg?

why must the control room operator must inform before draining or flushing deadlegs in a level column?

what must the control man do before the outside operator drains or flushes a level gauge /column deadleg?

what happen when deadlegs in a sample connection are not drained?

sample connection are also called-------------

Why do you check to see if the fluid is toxic or flammable before flushing a deadleg.

what is flushing?

a deadoleg is any place in a pipeline or plant equipment where the ---------------

when flushing deadlegs the safety equipment required is ----------------------

what must the ouside operator do before starting to drain or flush a deadleg?

after draining or flushing a deadleg what is the next step an operator must do?

after receiving an order to flush or drain a deadlegs what must the outside operator do ?

Drain and flush to change old fluid with _____________.

How do you locate a deadleg?

Flush and drain lines to prevent __________________.

what must the outside operator check before starting to drain or flush a deadleg?

Who tells you to flush and drain deadlegs?

what safety precuations must the outside operator take when draining or flushing a level guage glass/column?