Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Acetylene should be drawn from a cylinder only when the cylinder is:

Acetylene must be drawn only when the cylinder is upright because this gas is stored dissolved in acetone within a porous filler. Keeping the cylinder upright keeps the liquid acetone at the bottom and the acetylene gas at the top, so the flow to the regulator stays clean and controlled. If the cylinder is inverted or on its side, liquid acetone can be forced into the valve and regulator, causing blockage, damage, or contaminated gas delivery and increasing the risk of a hazardous situation. An upright position ensures safe, stable delivery of acetylene.

Acetylene must be drawn only when the cylinder is upright because this gas is stored dissolved in acetone within a porous filler. Keeping the cylinder upright keeps the liquid acetone at the bottom and the acetylene gas at the top, so the flow to the regulator stays clean and controlled. If the cylinder is inverted or on its side, liquid acetone can be forced into the valve and regulator, causing blockage, damage, or contaminated gas delivery and increasing the risk of a hazardous situation. An upright position ensures safe, stable delivery of acetylene.