Circuit breaker - Study guides, Class notes & Summaries

When using a pulse load tester on a sealed lead acid battery, the minimum acceptable capacity is... Answer - 80% When a software change is made to a fire alarm system, what percentage of the initiating devices not affected by the change must be tested Answer - 10% When testing elevator recall, the elevator should go to the alternate level when: Answer - The lobby smoke detector on the recall level is activated Minimum requirement for system documentation Answer - Battery calculations/fl...

Fire Investigator TCFP Exam| 500+ Practice Questions and Verified Answers| 2023/ 2024 Update Q: What is the ability of a structural assembly to maintain its load-bearing capacity and structural integrity under fire conditions Answer: A.) Fire resistance Q: What would most likely need to happen for the fuel-gas product to ignite in the piping system Answer: C.) Leak from the system Q: What can the fire investigator conclude when the electrical safety devices operated ...

NETA level II exam questions & answers 2023 What is the preferred method of performing primary-injection testing on a low voltage circuit breaker with ground fault protection? Use of the manufacturer's test kit or rewiring the neutral CT input is the preferred method of primary-injection testing on a low voltage circuit breaker with ground fault protection, otherwise two poles can be connected in series to provide balanced secondary currents to the trip unit. At what current level does ...

Bradley Commanders' Course Assessments Test Questions| 288 Questions with Verified Answers Graded A+ Define the Acronym: TEC-ECB Transmission Electronic Controlled - Electronic Controlled Breaking Define the Acronym: DVDB Digital Vehicle Distribution Box Define the Acronym: GPFU Gas Particulate Filter Unit Define the Acronym: DVE Driver's Vision Enhancer Define the Acronym: DSIP Driver's Switch & Indicator Panel Define the Acronym: CTD Commander's Tactical Display Define the A...

Milady Esthetics Chapter 8 Exam Questions With Answers Electricity the movement of particles around an atom that creates pure energy. It is a form of energy that, when in motion, exhibits magnetic, chemical or thermal effects. Electric current the flow of electricity along a conductor in a complete circuit conductor any material that easily conducts electricity (ex: water, metal) Metals are good conductors; Copper is a particularly good conductor use in electric wiring and electri...

The movement of electrons from one atom to another along a conductor is called - Electricity Electric wires can be covered with a material that does not transmit electricity, such as rubber or plastic coating. This material is known as a(n) - Insulator An apparatus that changes direct current to alternating current is a(n) - Inverter The term __________ current refers to a rapid and interrupted current, flowing first in one direction and then in the opposite direction - Alternating The uni...

There are six conductors in a race way connected to 75° C rated circuit breaker. Each wire has a 70 amp load using THHM conductors. The minimum size conductors used our #_________AWG correct answer: 4 Thermal insulation shall not be installed within _________inches of recessed lighting fixtures correct answer: 3 A 1 inch conduit contains three wire circuits or a phase system. All conductors are number 10 TW. Each circuit consist of two phase conductors and one grounding conductor and on...

Before working on an electric furnace the tech should - ans-Review diagram, remove jewelry, and follow safety procedures. ALL OF THE ABOVE. A GFCI circuit breaker - ans-detects current leaks to groound the conductor in an electric heat element is usually made of - ans-Nichrome An example of resistive load is - ans-crankcase heater an example of an inductive load is - ans-motor an electric furnace is marked 208/230 single phase 60Hz A tech reads 200 vac at the p...

What method of heat transfer does not require fluid or solids? - correct answer Radiation Capillary tubing should only be cut to length using a - correct answer Triangular or knife edge file Before beginning any electrical check out procedure what step must always be taken after the equipment disconnect or circuit breaker has been turned off - correct answer Check for voltage When making a flare the height of the tubing above the flare block is critical because the flare with too much s...

NETA III 2024 QUESTIONS WITH CORRECT SOLUTIONS The alternate source for emergency systems are required to be equipped with ground-fault protection of equipment. -Answer-False Which ANSI/IEEE standard covers SF6 circuit breakers? -Answer-C37.04 You measure the winding resistance of a 12.4kV, 1000kVA, Delta-Delta connected transformer with a 100A test set. H1-H2 measures 42.0 microhms, H2-H3 measures 41.9 microhms, and H3- H1 measures 84.0 microhms. What can you conclude from these readings...