Circuit breaker Study guides, Class notes & Summaries

Which of the following is true with regard to switchboards Switchboards are used to subdivide large blocks of power When installing wiring within switchgear, use self adhesive cable ties every ___. 12" (300mm) The maximum voltage that a piece of equipment can withstand is known as its ____. Basic impulse insulation level (BIL) Bolted pressure switches are often used in place of ___. Circuit breakers A transformer's temperature rise rating refers to ___. The max...

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...

SEP flight attendant (Air Canada) Questions and Answers Already Passed What is the goal of an IFSO(in-flight security officer) ? there training is desiganted to educate them on normal, abdnormal and emergency procedures. Distinguish crew actions in any non-security scenario. And prevent the aircraft from beung taken over unauthorized people. A serial killer is allowed on board as a prisoners only if they are accompanied by an escorting peace officer. TRUE or FALSE FALSE. prisoners are ...

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 - 4 Thermal insulation shall not be installed within _________inches of recessed lighting fixtures - 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 one equipment grounding conduct...

Which Article of the NEC covers grounding? : article 250 Which of the following is a 90 degree, explosion proof fitting? : GUAL What is a dropout plate? : Metal plate with a curved surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States EXCEPT: : 372/575 3-PHASE, 4-WIRE What does a GFCI breaker do? : Opens a circuit to prevent operation of an electrical device What will happen when one or more coils in a winding are g...

NICET Level 1 inspection and Testing Exam 2024 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 docu...

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 answers4 Thermal insulation shall not be installed within _________inches of recessed lighting fixtures correct answers3 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 one eq...

Zener current will decrease - ANSWER-Refer to figure 1. If the load resistance R2 is reduced by half what happens what happens to zener diode? 4v - ANSWER-Refer to figure 1. The zener diode is designed to breakdown at 6VDC what is the voltage drop across R1 with a constant DC supply of 10VDC 30 rpm - ANSWER-An elevators motor rotates at 1200 rpm at contract speed and is geard at a ratio of 40:1. If the motor turns 40 rpm the sheave turns 1 rpm. What is the actual speed of the drive sheave ...

circuit breaker mean? a. The breaker is inexpensive b. The breaker will have lots of nuisance trips c. The breaker will trip out regardless of conditions d. The breaker will only trip at 150% of its rated amperage b. 8 amps (E-11 Table XII Conductor Ampacity - Flexible Cords) - ANSWER maximum current carrying capacity for an flexible cord of 16 AWG with 2 current carrying conductors inside the engine spaces is a. 6 amps b. 8 amps c. 10 amps d. 20 amps c. only in one direction - ANS...

ASE A6 Test Prep – Electrical/Electronic Systems - Questions, Answers and Explanations Adding an additional path through which the current can flow has decreased the total resistance of the circuit. Each light drops 12 volts. An ohmmeter is being used to check a circuit for continuity. Technician A says an infinity or full scale reading on an ohmmeter indicates no continuity. Technician B says a zero reading on an ohmmeter indicates continuity. Who is right? A. Technician A only B. Technician...