Why might adjusting the oxygen flow during a brazing project by standing in front of the cylinder and slowing opening the valve all the way create a hazardous situation?
A) The valve should be opened quickly to relieve pressure.
B) The valve should only be opened halfway.
C) The valve should be opened while standing behind the cylinder.
D) The valve should only be opened two and a half turns.
C
You might also like to view...
PROBLEM 3.97
It is observed that a straightened paper clip can be twisted through several revolutions by the application of a torque of approximately 60 mN ? m. Knowing that the diameter of the wire in the paper clip is 0.9 mm, determine the approximate value of the yield stress of the steel.
Floor ____ are the repetitive structural members that are used to support the subfloor, or rough floor.
A. joists B. hips C. rafters D. beams
Gypsum or nylon electrical resistance blocks are most useful in estimating the soil water content if the soil is quite dry
Indicate whether the statement is true or false
Pulse width (tW) is defined as:
A) the time interval between opposite points on the pulse. B) the time interval between identical points on the pulse. C) the time interval between changes in the pulse. D) all of these.