Ten High-Technology Batteries Are Tested for 200 Hours Each

question 15

Multiple Choice

Ten high-technology batteries are tested for 200 hours each. One failed at 20 hours; all others completed the test. FR(%) is __________ and MTBF is __________.

• A) 10%; 1/1820
• B) 90%; 1/1820
• C) 10%; 1820 hours
• D) 10%; 1980 hours
• E) cannot calculate from information provided

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Definitions:

Amino Acids

Fundamental components of proteins, each containing an amino group, a carboxylic acid group, and a unique side chain.

Double Helix

The structure of DNA, which consists of two antiparallel polynucleotide chains twisted around each other.

Polymer

is a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units.

Nucleotides

The basic building blocks of nucleic acids like DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.