BOMA-HVAC QUESTIONS AND ANSWERS ALREADY GRADED A

BOMA-HVAC QUESTIONS AND ANSWERS ALREADY GRADED A The man whose work is considered the real beginning of the science of air-conditioning _____. Willis Carrier Psychrometry refers to the relationship between _____ and _____. Humidity; air The amount of moisture in the air compared to how much it can hold is _____. Relative humidity The human bodies well being depends upon the _____. Bodies metabolism The device used to determine the moisture content of air is the _____ psychrometer Of the fuels listed the one that is the most efficient is _____. Gas The effective temperature takes into consideration the effect of _____ and _____. Humidity; temperature Air conditioning is the control of the _____, _____, _____ and _____. Temperature, humidity, purity and distribution of air. The element that makes up the greatest percentage by volume of air is _____. Nitrogen Steam gives off a great amount of heat because of its _____. Specific heat The velocity of air moving thru a fan system is expressed in _____. Feet per minute What volume of air will move thru a duct 24x18 at velocity of 450 feet per minute? 1350 cfm The following types of fans are classified as centrifugal fans. Forward curved, radial and backward curved Select the statement that does not apply to backward inclined fans. Has an overloading BHP horse power curve. The quantity of air moving thru a fan system is expressed in _____. Cubic feet per minute The instrument used to measure air pressure in duct is the _____. Monometer Air flow thru a duct has the highest _____. Velocity near the center of the duct. Select the statement which does not apply to the fan laws. Static pressure in a duct increases as the velocity decreases. Variable air volume system feature is _____. Varies the volume of air with space temperature conditions Double duct systems are _____. ? The purpose of a primary control is to _____. Start or stop the system A pressurestat responds to _____. System pressure The oil safety switch is operated by _____. Oil pressure A low limit control _____. ?