Boma motor controls - Study guides, Class notes & Summaries

BOMA - General Maintenance Questions and Answers Graded A+ When starting a centrifugal pump that is part of a manifold with no check valves: You should open the suction valve, start the pump and open the discharge valve slowly A valve inserted in a water line between the corporation stop and the water meter is generally called: Curb cock To check sheave wear: Measure each groove angle Variable pitch sheaves may be used in some cases to provide which of the following types of speed ...

BOMA-Instrumentation & Controls Questions and Answers Graded A+ A submaster controller resets the set point of the master controller. False Normally open refers to a controlled device that opens when no operating force is applied. True A P.E. Switch is used to change an electrical signal to a pneumatic output. False Moisture and dirt are detrimental to the operation of pneumatic control systems. True A static pressure regulator senses the pressure in the plenum the regulator contro...

How does a U.P.S. (uninterruptable power supply) work? AC rectified to DC batteries then inverted to AC Batteries energy capacity is measured in Amp-hours 6 Ways to Show Appreciation for Your Child's Teacher Batteries have two rated values: Voltage and Amp-hours How do you top off water in a battery cell? Distilled water when the level is below the plates A voltage monitor relay is used for: Starting backup generators Fuel for diesel generators is often stored in a: Day tank ______...

A _____ is used to measure electrical potential? - voltmeter A _____ is used to measure resistance? - ohmmeter A 3 way switch is essentially a? - single pole double throw switch A 4S box is the most frequently used in one of the situations shown below. Which is it? - Junction box A combination motor starter always includes? - Circuit breaker, fuse and disconnecting device A device used to measure the rotating speed of the motor is called? - tachometer A generator? - Changes mechanical pow...

BOMA - Instrumentation & Controls Questions and Answers Rated A+ What important function(s) does an air receiver perform? Dissipates heat, Dampens compressor pulsations, Act as water and oil trap On a compressed air system a safety valve would generally be installed on the: Air receiver Variable air volume system: Typically use VFDs to save energy In figure 1.3, a full call for cooling would be at what branch pressure to the damper motor? 3 psig A ratio relay would be used to. Control...

BOMA - Instrumentation & Controls Questions and Answers Rated A+ What important function(s) does an air receiver perform? Dissipates heat, Dampens compressor pulsations, Act as water and oil trap On a compressed air system a safety valve would generally be installed on the: Air receiver Variable air volume system: Typically use VFDs to save energy In figure 1.3, a full call for cooling would be at what branch pressure to the damper motor? 3 psig A ratio relay would be used to. Contr...

QUESTIONS AND ANSWERS

QUESTIONS AND ANSWERS

©THEBRIGHT EXAM STUDY SOLUTIONS 8/21/2024 1:28 PM BOMA: Motor Controls Exam Questions With Correct Answers A 3600 RPM motor has: - answertwo poles If you throttled the discharge side of a centrifugal pump into closed the amps would: - answergo up The common method of correcting power factor is: - answeradd a capacitor To convert AC to DC you would need: - answerrectifier *To convert DC to AC we would need: - answerconverter or inverter The actual full load amps of a motor are found? - ...