Card Set Information
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.
When a mercury battery is subjectedto a temperature of +++ ”F or above, it will explode.
Maintain the temperature of a Ni-Cad battery at below +++ F if possible
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.
All circuits over +++ volts shall be grounded, for protection of personnel engaged in
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
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.
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.
The recommended maximum intensity levels in controlled radiation areas is +++ milliroetgens per week or +++ milliroentgens per hour
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.
Carbon dioxide gas is generally stored in steel cylinders at a high pressure of approximately +++ psi at normal room temperatures.
Bypass devices are sometimes used with interlocks, providing that the potentials are not in
excess of +++ volts RMS or DC.
High voltage and shock hazard warning signs shall be installed on or in the vicinity of
equipments or accessories having exposed conductors at potentials of +++ volts
Compartments or walk-in enclosures containing equipment with exposed conductors
presenting shock hazards in excess of +++ volts RMS or DC shall have a “Danger High Voltage” sign posted conspicuously within each entrance.
Voltages in excess of +++ volts shall not be measured by probing or holding the test
probe in the hands.