BOMA - Instrumentation & Controls|| QUESTIONS|| CORRECT ANSWERS EXAM BUNDLE

What important function(s) does an air receiver perform? - ANSWER 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: - ANSWER Air receiver Variable air volume system: - ANSWER Typically use V...

Usually if a motor in a system feels hot and you think it is overloading you should not open the flow valve further because? - ANSWER Increase in flow will usually increase the horsepower requirements. Net positive suction head is? - ANSWER The amount of absolute pressure actually available at th...

A submaster controller resets the set point of the master controller. - ANSWER False Normally open refers to a controlled device that opens when no operating force is applied. - ANSWER True A P.E. Switch is used to change an electrical signal to a pneumatic output. - ANSWER False Moisture a...

Two basic categories of chillers are the ___. a. Compression cycle and absorption b. purge and absorption c. absorption and lithium bromide d. purge and lithium bromide - ANSWER a. Compression cycle and absorption The five requirements for comfort are proper temperature, humidity, filtration,...

Usually if a motor in a system feels hot and you think it is overloading you should not open the flow valve further because? - ANSWER Increase in flow will usually increase the horsepower requirements. Net positive suction head is? - ANSWER The amount of absolute pressure actually available at th...

How may fittings be attached to a high pressure boiler? a. threaded b. certified welds c. flanges d. any of the above - ANSWER d. any of the above Which test determines the relieving capacity of safety valves? a. hydrostatic test b. accumulation test c. orsat test ration test - ANSWER b. ...

On a compressed air system a safety valve What important function doesn't care receiver perform? - ANSWER Dissipate heat, dampens compressor pulsation, Act as water and oil trap would generally be installed on the - ANSWER Air receiver Variable air volume system - ANSWER Typically use the V...

laminar flow - ANSWER - A streamline or viscous flow. - layers of water flowing over one another at different speeds with virtually no mixing between layers. - Fluid particles move in definite and observable paths or stream lines. - The flow is characteristic of viscous (thick) fluid or is one in...

A holding contact or maintaining contact in a magnetic motor starter is normally connected in parallel with the? - ANSWER Stop push button, start push button, and starter coil The armatures of both AC and DC contactors must move freely or? - ANSWER all the contacts may weld together Which of t...

A 3600 RPM motor has: - ANSWER two poles If you throttled the discharge side of a centrifugal pump into closed the amps would: - ANSWER go up The common method of correcting power factor is: - ANSWER add a capacitor To convert AC to DC you would need: - ANSWER rectifier

What important function(s) does an air receiver perform? - ANSWER 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: - ANSWER Air receiver Variable air volume system: - ANSWER Typically use VF...

When starting a centrifugal pump that is part of a manifold with no check valves. - ANSWER 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. - ANSWER Curb co...

What important functions does an air receiver perform? - ANSWER Dissipates heat, Dampens compressor pulsations, Act as water oil trap On a compressed air system a safety valve would generally be installed on the? - ANSWER Air receiver Variable air volume system? - ANSWER Typically use VFDs t...

Two basic categories of chillers are the - ANSWER compression cycle and absorption The five requirements for comfort are proper temperature, humidity, filtration, and ventilation - ANSWER circulation The primary function of an expansion device is to - ANSWER produce a reduction in the pressure...