Damper - Study guides, Class notes & Summaries

Combustion in a direct spark ignition, condensing gas furnace is sensed by a. the primary control b. the flame sensor c. thermocouple d. the barometric damper e. the ignition module correct answersB Gravity warm air furnaces are different from forced air furnaces in each of the following respects except a. there is no fan b. there is no high temperature limit switch c. the furnace is always located in the center of the house d. the supply and return duct systems are large, round and...

A listed smoke damper designed to resist the passage of smoke shall be provided at each point in a duct or air transfer opening penetrates a: (A)smoke barrier wall (B)fire rated wall (C)interior wall (D)corridor wall - ANSWER Corridor wall (IMC 607.5.4) Flexible air duct may be what length? (A)10' (B)2' (C)14' (D)6' - ANSWER 14' (IMC 603.6.1.1) The maximum vertical distance between the front lower lip of a canopy Type 1 hood and the appliance surface shall be ____ feet: (A)5' (B)3' ...

Oil Furnaces Questions and Answers 100% Pass You come across an oil furnace that has a tripped primary control. You should A) reset the primary controller and attempt to fire the burner. B) not reset the primary control, and attempt to view the firepot for pooling oil. C) reset the primary control, but do not attempt to fire the burner. D) not reset the primary control, and attempt to view the heat exchanger for pooling oil. The answer is NOT RESET THE PRIMARY CONTROL, AND ATTEM...

4th Class Power Engineering Unit A9: Energy Plant Instrumentation and Controls Questions with Verified Solutions A _________ controls the flow of air through ducts or wall openings: Select one: a. damper b. control valve c. fan d. pilot a In a simple control system a process variable is measured and: Select one: a. compared with a set point value b. compared with normal operating trends c. charted in a graph d. charted in the CPU a This type of PLC cannot be expanded: ...

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...

STCW - Basic Firefighting Exam Questions and Answers Already Passed A __________ is water or other extinguishing agent after it leaves a nozzle until it reaches the desired target. fire stream A condition that occurs when flames move through or across unburned gases during a fire's progression is known as a __________. rollover A galley ventilator wash down system prevents ductwork fires by __________. closing a fire damper, turning on a water spray within the ductwork, and turning...

ATP-CTP FINAL EXAM 2024 Questions and Answers. Which of the following statements regarding energy is true? (A) Kinetic energy decreases with increasing airspeed. (B) Potential energy is approximately proportional to airspeed. (C) Chemical energy remains constant throughout a flight (D) Kinetic energy can be traded for potential energy, and potential energy can be traded for kinetic energy - ANSWER (D) Kinetic energy can be traded for potential energy, and potential energy can be traded fo...

FCS 2. Can the Autopilot operate with ONLY One Yaw Damper Engaged? - ANSWER Yes FCS 7. When is Mach Trim available? a. When the aircraft is Hand Flown above Mach 0.40 b. When the autopilot is engaged c. When stab trim channels are disconnected d. When movement of the horizontal stabilizer is required at a high rate of movement - ANSWER a. When the aircraft is Hand Flown above Mach 0.40

ATP-CTP FINAL EXAM 2024 Questions and Answers. Which of the following statements regarding energy is true? (A) Kinetic energy decreases with increasing airspeed. (B) Potential energy is approximately proportional to airspeed. (C) Chemical energy remains constant throughout a flight (D) Kinetic energy can be traded for potential energy, and potential energy can be traded for kinetic energy - ANSWER (D) Kinetic energy can be traded for potential energy, and potential energy can be traded fo...

HVAC NATE Gas Heat Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A Q: When starting up a dual system, the temperature rise method for determining airflow cannot be used with compressor cycle of the heat pump because: Answer: The capacity of the system varies too much with outdoor temperature. Q: The flame pattern a technician would expect to see on a properly operating single stage gas furnace equipped with "in shot" type burner is a:...