1. The passage is mainly about____.?
A) the uses of life preservers ?
B) the design of life preservers ?
C) the materials for life preservers?
D) the buoyancy of life preservers?
2. According to the passage, a life be first of all ____.?
A) adjustable B) comfortable ?
C) self-evident D) self-righting?
3. United States Coast Guard does NOT require the life preserver to be m
ade ____. ?
A) with as few strings as possible ?
B) capable of being worn on both sides C) according to each wearers size ?
D) comfortable and light to wear?
4. By the uninitiated individual (Para. 1, Line. 4) the author refers to the person ____.?
A) who has not been instructed how to use a life preserver?
B) who has a little experience in using a life preserver?
C) who uses a life preserver without permission?
D) who becomes nervous before a disaster?
5. What would happen if a person were supported by the life preserver in
a wrong position??
A) The waves would move him backwards. B) The water would choke him. ?
C) He would immediately sink to the bottom. ?
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