Concept explainers
In your own words, explain the terms alarm and detector.
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
Explain in details about the terms “alarm” and “detector”.
Explanation of Solution
Discussion:
The device which provides a warning signal is known as an alarm and it works with the help of a detector when the minimum acceptable protection level is exceeded. An alarm plays a key role in the security systems of mines, residential buildings, and industries.
Example: Smoke alarms, Heat alarms, and Carbon monoxide alarms (alarms for explosive gases).
A detector is the device which has a sensor in the circuit. Sensor responds to the physical stimulus such as smoke, heat or some explosive gases.
Example: Smoke detectors, Heat detectors, and explosive gas detectors.
An alarm works with the co-ordination of a detector which has a pre-programmed sensor for the minimum acceptable levels of smoke, or heat, and so on, based on the application of an alarm.
Conclusion:
Thus, the terms “alarm” and “detector” are explained.
Want to see more full solutions like this?
Chapter 26 Solutions
EBK ELECTRICAL WIRING RESIDENTIAL
Additional Engineering Textbook Solutions
Electrical Engineering: Principles & Applications (7th Edition)
Engineering Electromagnetics
Electric Motors and Control Systems
Microelectronics: Circuit Analysis and Design
Fundamentals of Electric Circuits
Electric Circuits (10th Edition)
- Answer each problem and show your solutions cleanly and clearly. Draw diagrams.__________________________________________________________________________________________________________arrow_forwardTrouble shooting is the systematic _____________________________ of the various ______________ of a system or process to _________________ a __________________________________ part.arrow_forwardPart 2: Analysis and selection of the Wind Turbine. The team decides at install a 30 MW wind farm. The turbine that has been selected by the local contractor is an Enercon wind turbine. The specifications of all the available Enercon wind turbine is shown in the attached datasheet. 1. Decide on the required number of wind turbines needed. 2. In your own words, explain what the Betz limit for wind turbines means.arrow_forward
- Those employees who physically lock or tag out equipment for servicing or maintenance: Are always the people who normally operate the equip- ment. Are affected employees. Are authorized employees. Do not need training. a. b. C. d. Lockout locks: Can be used to lock tool boxes, storage sheds, etc. Can be used only for lockout purposes. a. b. C. Are provided by the equipment manufacturer. d. Must be bright orange in color. Authorized employees must be trained: To recognize hazardous energy sources, and to know the type and magnitude of the hazardous energy sources. b. a. To perform the lockout/tagout procedure. When an audit shows deficiencies with the procedure. C. d. All of the above. When authorized employees perform a shutriown, they must: Notify all affected employees that they are starting a lockout procedure. b. a. Locate all energy sources that power the equipment. C. Follow the procedures to shut down each machine. All of the above. d. If several people are needed to work on a…arrow_forwardWhen a set of electrical drawings is needed to get a permit, the drawings must include A. switch locations.B. brand names for each part.C. estimated cost of the project. D. fuse locations.arrow_forward______________1. It checks the ability or range of operations of the electronic components that be run in the system. ______________2. It assesses the ability of the electronic components to exchange information or can access data without any restriction. ______________3. It evaluates the ability of the part to meet the functional, mechanical, and electrical performance requirements.arrow_forward
- Which statement is most correct about voltage?arrow_forwardPlease answer quickly. 17. The filament of incandescent lamp is usually made of: a. copper b. silver c. aluminum d. tungsten 18. A current measuring instrument can be modified to measure voltages by: a. using thicker wire in the coil b. using a high resistance shunt c. adding resistance in series d. adding resistance in parallel 21. "When two power sources are connected in a series-aiding configuration, the output voltage equals the _____________" a. supply with the highest voltage b. supply with the lowest voltage c. difference of the two supplies d. sum of the two suppliesarrow_forwardMessages AA Statement one Training will allow you to safely erect a mobile. tower scaffold on any ground surface condition. and access the tower both internal and externally Statement two In windy conditions placing sheeting around the mobile tower scaffold will protect the workers on the tower a) Statement two is incorrect b) Statement one and two are correct c) Statement one is correct and statement two is incorrect d) Both statements are incorrect actclass.co.uk 22 Questi 23 Questi 24 Questi 25 Questi 26 Questi Submit Answers Ćarrow_forward
- 6.a. Extreme _______ may cause some nonmetallic conduits to become brittle and therefore moresusceptible to damage from physical contact.A. coldB. corrosionC. voltageD. heat6.b. Snap switches are permitted to be grouped or ganged in an enclosure provided the voltage between theadjacent snap switches does not exceed ___ V.A. 400B. 300C. 200D. 100arrow_forward2. Imagine that you're asked to install an auxiliary grounding electrode at the base of a lighting pole in aparking lot. This auxiliary grounding electrode will be connected to theA. lighting pole's electrical service equipment grounding conductor.B. electrical service's grounding electrode conductor.C. next lighting pole's auxiliary grounding electrode.D. lighting pole's neutral conductor.arrow_forwardIf an electrical system operates at a potential higher than 600 volts, the nonmetallic conduit must be encased in at least_of concrete. A. 1 inch B. 2 inches C. 4 inches D. 6 inchesarrow_forward
- EBK ELECTRICAL WIRING RESIDENTIALElectrical EngineeringISBN:9781337516549Author:SimmonsPublisher:CENGAGE LEARNING - CONSIGNMENT