When Handling Film with Barrier Envelopes,the Barrier Envelopes Are Opened

question 30

Multiple Choice

When handling film with barrier envelopes,the barrier envelopes are opened with __________ hands and the films unwrapped with ______________ hands.

• A)gloved;gloved
• B)gloved;nongloved
• C)nongloved;gloved
• D)nongloved;nongloved

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Definitions:

Pitch

The quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.

Frequency

The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light).

Sound Wave

A type of pressure wave generated by vibrating objects, traveling through mediums such as air, water, or solids, and perceived as sound by the human ear.

Müller-Lyer Illusion

A visual illusion in which two lines of the same length appear to be of different lengths because of the orientation of arrow-like tails at their ends.