A problem that can look like refrigerant overcharge if a service technician is only looking at system pressures is: Select one: A. Low condenser airflow. B. High evaporator airflow. C. An overfeeding refrigerant metering device. D. Low evaporator airflow.
Fully metallic linings require very high pedal pressure and tend to quickly wear out drums and rotors. a. True b. False
A keyless remote start is not working. Technician A says the trunk of the vehicle may be open. Technician B says that the key fob may be too far away from the vehicle. Which technician is correct? Select one: a. Technician A only b. Technician B only c. Both Technicians A and B d. Neither Technician A nor B
20.- Escribe ¿cuáles son algunos materiales aislantes de la electricidad? __
The distinguishing characteristic of an electrical cable is that it consists of two or more conductors and a messenger wire inside a single covering that are bare that carry video feeds
What is not feasible for an emergency shutdown system? Backup power Automatic reset Vibration alarm Deviation alarm
Audio inspections include determining whether any hissing, bubbling, or other sounds can be heard that indicate the presence of emissions. True False
Select the correct answer. Lei is working on a robotics project. He started listing down the equipment required to create a robot. What is Lei collecting? A. information B. facts C. properties D. objects E. data
Consumer and commercial products today must meet __ requirements for emission of electromagnetic and electronic noise. NFPA UL Federal Communication Commision (FCC) NEC
Pneumatic energy is controlled by __ Pipes Engineers Systems Valves
Question 2/20 When in use, how do you move the articulated ladder? Select the best answer: Keeping 3 points of contact, have someone move the ladder for you Disengage the locks, descend and then re-locate Keeping 3 points of contact, hop the ladder into place First descend, then re-locate
When power and data are brought to one enclosure, a means of dividing the wiring is required. Gang box partitions are available for boxes of what depth? (Select all that apply.) a. . $1\frac {5}{8}$ b. $2\frac {1}{4}''$ C. . $2\frac {1}{2}''$ d. . $23/8$
A surface-mounted fluorescent luminaire (light fixture) mounted in a clothes closet must maintain a clearance of at least __ inches to the storage area. Select one: a. 6 b. 18 c. 24 d. 0 e. 12
Which of these is least likely a step in replacing a failed compressor? C A) Replacing the condenser B) Inspecting the muffler C) Disconnecting and sealing the hoses D) Flushing the system
12. A transformer can be checked for shorted turns using a __ a) VOM set to measure resistance b) VOM set to measure current c) TTR tester d) megger
A GFCI opens a circuit when it detects an improperly grounded receptacle different currents in the conductors of a circuit insulation failure in a conductor large amounts of current in a conductor
Questions for Further Investigation How do a hand generated flashlight and power plant compare? -When might you use the information you learned from this station? What new questions do you have? Brainstorm new investigation questions for this station.
When the saw blade starts to bind you should Stop the saw and restart the cut Hold the saw tighter and finish the cut Lift the saw out of the cut Push harder
What are some advantages of making electronic components like transistors increasingly smaller?
A __ is the hub of a structured wiring system and is usually located in the basement or garage. It is sometimes called a "distribution center." sub-panel field enclosure service center hub center
