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which of these organization requires approved footwear on job sites? - ANSI to prevent falls from high working condition, a technition should use... - personal fall arrest slips and drives are used in a metal duct system to - hold and seal section together a psychrometer is used to measure - humidity The device that maintain the boiler pressure 10 to 15 psi in the system is the - automatic fill valve leak checking the refrigerant piping whit is in deep vacuum should be avoided becasue -...

SOLUTION GRADED A+ Limit switches are usually found on which type of systems? - Heating Sensing bulb on thermostats are filled with which type of liquid? - volatile liquid Which type of sensors do electronic thermostats use? - thermistors Which voltage do line voltage thermostats usually control? - 115 and 220 Low voltage thermostats usually control which type of voltage? - 24 A thermostat that can control multiple levels of heating and cooling is called a _____ thermostat. - staging Whi...

What is the most commonly used communication cable in residential voice/data applications - CAT 5E & 7 what type of cable has the largest amount of potential bandwidth ? - fiber optic cable flexible metal conduit should be supported within _______ from an outlet - 12 inches According to the NEC, EMT conduit must be supported every - 10 feet Finish conduit is produced in nominal _____ lengths - 10 foot which conduit need to be threaded and is the thickest - RMC ( rigid metal conduit )

Louver/Bird Screen - keeps out rain/snow, has wire mesh screen to keep out birds and large insects Dampers (Parallel and Opposed blades) - -used to regulated airflow -parallel: full open/full shut position applications -opposed: airflow must be modulated; greater resistance Damper Actuators - -provide motive force to operate damper unit -electric: unidirectional, spring/non-spring return, or reversible (rotary) -pneumatic: uses air pressure from a controller as a signal Heating Coils (pr...

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Practice questions for this set Terms in this set (35) The abbreviation, ___, means "twice daily." b.i.d. A glucometer is used to assess hearing acuity A health assistant finds a soiled bandage on the floor while in a patient's room. The health assistant should place the bandage in a red "biohazard" bag Which of the following is a part of the respiratory system? bronchi A patient has just finished eating lunch. The patient drank 2/3 of a 6 ounce glass of milk, 125 ml ...

Terms in this set (27) What fire extinguisher should be used on an electrical fire? Class C When should a person with a serious electrical injury be moved? Immediate Danger Only Use this to prevent static electricity damage? A Grounded Mat

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