The flashcards below were created by user
bc901
on FreezingBlue Flashcards.
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Operating stations, guard rails, and normal personnel thoroughfares shall be designed to provide at least a +++ foot horizontal and +++ foot vertical clearance from MF/HF transmitting antennas.
4, 8
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When a mercury battery is subjectedto a temperature of +++ ”F or above, it will explode.
400
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Maintain the temperature of a Ni-Cad battery at below +++ F if possible
113
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Never discharge a mercury cell battery after its voltage has fallen below +++ percent of its normal voltage, or after it fails to operate the equipment in which it is used.
70
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All circuits over +++ volts shall be grounded, for protection of personnel engaged in
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The total force exerted on the overall surface of a 10-inch CRT is nearly +++ pounds, of which +++ pounds is exerted on the face alone
1000, 2000
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Any material exhibiting a radiation level of more than ++++ of one milliroentgen per hour above background at a distance of approximately one inch from the material should be treated as radioactive.
1/10
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Modern electron tubes, such as klystrons, magnetrons, thyratrons, cathode-ray tubes, and high-voltage rectifiers, when operated with electric potentials in excess of +++ volts, may generate X-rays.
16,000
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The recommended maximum intensity levels in controlled radiation areas is +++ milliroetgens per week or +++ milliroentgens per hour
100, 2.5
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All currentarrying parts of arresters, on cirtits involving more than +++volts unless effectively isolated by elevation, shall have guards or barriers for the protection of personnel.
70
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Carbon dioxide gas is generally stored in steel cylinders at a high pressure of approximately +++ psi at normal room temperatures.
850
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Bypass devices are sometimes used with interlocks, providing that the potentials are not in
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excess of +++ volts RMS or DC.
500
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High voltage and shock hazard warning signs shall be installed on or in the vicinity of
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equipments or accessories having exposed conductors at potentials of +++ volts
30
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Compartments or walk-in enclosures containing equipment with exposed conductors
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presenting shock hazards in excess of +++ volts RMS or DC shall have a “Danger High Voltage” sign posted conspicuously within each entrance.
500
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Voltages in excess of +++ volts shall not be measured by probing or holding the test
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