A simple welding sequence used to reduce or eliminate distortion is to make short welds __

Tools such as chain clamps, rim clamps, and strongbacks are used to properly align and fit weldments and __

Unless otherwise known, it is safe to assume that a mixture of two chemicals will not be more toxic than its most toxic component.

An SDS may not contain every physical and chemical characteristic because information may be irrelevant or unavailable. If this occurs a notation must be made as to why it has not been included.

Which of the following is NOT required in section 1 of an SDS?

Grounding and bonding is necessary during the transfer of flammable liquids that have a flashpoint below 100° F from 55 gallon drums.

As long as chemicals are stored on secure shelfs, in secondary containers, there is no concern for what order they are found within a chemical storage room.

What does IDLH stand for?

If I wanted to know an aquatic organisms LC50 based on exposure to Chemical X, I would reference which section of the SDS?

c = 3×108 m/s   a) If a spacecraft is travelling away from Earth at 0.35c, how much time would a person in the spacecraft observe to pass if a person on Earth observed 85 seconds to have passed?   b) If a spacecraft was travelling through the Earths atmosphere and measured the distance between two mountains to be 387 km, while a person on Earth would measure the distance as 534 km, how fast was the spacecraft travelling relative to Earth?