What type of circuit breaker is used on a multimeter?

1 Answer

Answer :

A push button or push-pull circuit breaker (small size, low  power).

Related questions

Description : A device which can be used to check the calibration of a circuit breaker is a _________________. A. 500 volt megohmmeter B. portable low voltage high current testing unit C. standard digital multimeter D. clamp-on voltmeter

Last Answer : Answer: B

Description : What items are you to check when working on a circuit breaker?

Last Answer : Check the operating mechanism for smooth operation, check the contacts for pitting, check the terminals for tightness and corrosion, check the mounting hardware for tightness and wear, check all components for wear, and check the entire circuit breaker for cleanliness.

Description : What steps are to be taken before beginning work on a circuit breaker

Last Answer : Check the applicable technical manual, obtain the approval of the electrical or engineering officer (for shipboard circuit breakers), remove power from the circuit breaker, and tag the switch that supplies power to the circuit breaker.

Description : What factors are used to select a circuit breaker?

Last Answer : The power requirements of the circuit and the physical space available.

Description : Where should you use a nontrip-free circuit breaker?

Last Answer : In emergency or essential circuits.

Description : Where should you use a trip-free circuit breaker?

Last Answer : In current sensitive or nonemergency systems.

Description : What is a nontrip-free circuit breaker?

Last Answer : A circuit breaker that can be overridden if the operating mechanism is held ON.

Description : What is a trip-free circuit breaker?

Last Answer : A circuit breaker that will trip even if the operating mechanism is held ON.

Description : What are the three types of circuit breaker trip elements?

Last Answer : Thermal, magnetic, and thermal-magnetic

Description : What are the five main components of a circuit breaker?

Last Answer : Frame, operating mechanism, arc extinguishers, terminal connectors, and trip element.

Description : How is an overload condition indicated by the electronic digital multimeter?

Last Answer : Simultaneous flashing of display readouts

Description : Power for the electronic digital multimeter is normally supplied by what internal power source?

Last Answer : Rechargeable batteries.

Description : What meter reading is shown on each multimeter in each part of figure 1-50?

Last Answer : (A) 410 mA dc; (B) 3.9 mA ac; (C) -22 V dc; (D) 600 V ac; (E) 1.4 V ac; (F) 1.9 kohms

Description : Why would you use a hook-on voltmeter instead of a multimeter?

Last Answer : To measure current safely and easily (with no need to disconnect the wiring of the circuit).

Description : How is the mirror on a multimeter used?

Last Answer : Make sure no image of the pointer is visible in the mirror when reading the meter.

Description : What is the reason for having a mirror on the scale of a multimeter?

Last Answer : To stop parallax error

Description : Why is the dc scale on a multimeter different than the ac scale?

Last Answer : The meter movement reacts to average ac voltage and current and the effective value is desired.

Description : How is a multimeter changed from a voltage measuring device to a resistance measuring device?

Last Answer : By changing the position of the function switch

Description : Why is a multimeter preferred over separate meters?

Last Answer : It is much more convenient to have one meter with several functions than several meters each with a single function.

Description : What is a multimeter?

Last Answer : . A single measuring device capable of performing the functions of a dc voltmeter and ammeter, an ac voltmeter and ammeter, and an ohmmeter

Description : When troubleshooting electronic equipment, you should use a high impedance multimeter ________________. A. to prevent excess current flow through the meter that would damage it B. for AC measurements only ... being tested D. so as not to load down the circuit and obtain erroneous voltage readings

Last Answer : Answer: D

Description : Fuses placed in series with a thermal trip-type circuit breaker are used for _____________. A. time-delay protection B. short-circuit protection C. short duration surge protection D. sustained overload protection

Last Answer : Answer: B

Description : What is the type of 220 kV circuit breaker? 

Last Answer : 220 kV, SF6 breaker, single pole, puffer type. 

Description : Which one is not a correct type of circuit breaker: A. Over Head circuit breaker B. Miniature Circuit Breaker C. Earth Leakage Circuit Breaker D. Oil Circuit Breaker 

Last Answer : Which one is not a correct type of circuit breaker: Over Head circuit breaker

Description : Electrical jellies! Got a circuit breaker (home) that has popped and won't reset. Suggestions?

Last Answer : My husband, who was a master electrician, said you need to call a professional. You either have a bad breaker or the breaker that refuses to reset is saving your life because you have a dead short some place and your house would burn down if ithe breaker wasn’t tripped.

Description : My (soon-to-be-replaced) air conditioner is frequently tripping the circuit breaker in my apartment. What can I do to prevent this?

Last Answer : answer:A mini-split AC unit will use less power than a regular square version and should help with the problem. However if your problem resides in old wiring with a lower amperage/threshold you might ... every time you want to use it but this has cut my electric bill dramatically. Hope this helps

Description : What is the difference between a fuse and a circuit breaker ?

Last Answer : Fuse : It is a type of soft metal wire which, when more than the required current flows through the wire, burns it, disconnects the electrical circuit from the source and protects the valuable ... or fault in the power supply line . This breaks the static contact and protects it from accidents.

Description : Why is the circuit breaker turned off automatically ?

Last Answer : Circuit breakers are automatically turned off to protect electrical equipment from damage. An automatic switch is used to protect the electrical circuit or electrical equipment from damage due to ... is stopped and the electrical equipment connected to the circuit is protected from damage.

Description : What is Earth Leakage Circuit Breaker ?

Last Answer : Earth leakage circuit breaker is a protective device which protects the leaky faulty or faulty circuit from dangerous parts by separating it from the good parts. The leakage current of the circuit flows ... a faulty place due to a leakage error in the circuit is called a leakage circuit breaker.

Description : What is an Air Circuit Breaker ?

Last Answer : Air circuit breaker is a circuit breaker which is controlled by air, that is, a breaker which is turned on by air pressure and turned off by air pressure .

Description : What is Oil Circuit Breaker ?

Last Answer : An oil circuit breaker is a circuit breaker that contains oil and is in operation or on-off insulation oil . The oil used in the oil circuit breaker acts as insulation and extinguishes the arc. ... types. A) Plain brake type bulk oil circuit breaker and b) Arc controlled bulk oil circuit breaker.

Description : What is a circuit breaker ?

Last Answer : When excessive current flows in any faulty circuit , it is called circuit breaker which disconnects automatically or automatically.

Description : What is the reason for using circuit breaker in circuit ?

Last Answer : Circuit breakers are used for safety.

Description : What is the function of circuit breaker ?

Last Answer : Used to stop excessive flow

Description : What are the common sizes of circuit breaker panel for all electrical home?

Last Answer : 200 amp is the most common size used in most homes.

Description : Why will too many electrical devices operating at one time after blow a fuse or trip a circuit breaker?

Last Answer : The load exceeds the limit of the breaker or fuse. For example a20 amp breaker on a 120 volt circuit will handle 2400 watts. Exceedthat wattage and the breaker will trip or the fuse will blow.

Description : My current microwave oven causes my circuit breaker to trip if I use it at the same time as my toaster oven. Will this microwave solve that problem?

Last Answer : It's doubtful; I wouldn't be able to answer that for sure unless I knew the particulars of your set-up (what is your microwave/toaster's draw? what kind of breaker do you have? etc.), but I don't see any reason why this microwave would help that situation.

Description : Coast Guard Regulations (46 CFR) require each switchboard to have ___________. A. non-conductive deck covering at the frount B. non-conductive deck coverings at the rear C. a name plate for each circuit breaker D. all the above

Last Answer : Answer: D

Description : Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out? A. De-energize the applicable switchboard bus. B. Bypass the interlocks. C. ... supply circuit breaker in the open position. D. Station a man at the circuit supply switch.

Last Answer : Answer: C

Description : Which of the synchroscope illustrations depicts the appropriate direction of rotation and position for closing the circuit breaker when paralleling AC generators? EL-0053 A. A B. B C. C D. D

Last Answer : Answer: D

Description : The schematic diagram shown in the illustration uses symbol 'A' to represent a/an _________. EL-0011 A. non-renewable fuse link B. circuit breaker coil C. overload relay coil D. thermal overload heater

Last Answer : Answer: D

Description : An AC generator operating in parallel loses its excitation without tripping the circuit breaker. This will __________. A. not affect the faulty generator due to the compensation of the other generators B. ... between the armature and the bus D. cause high currents to be induced in the field windings

Last Answer : Answer: D

Description : Voltage failure of an AC generator may be caused by ____________. A. failure of the exciter generator B. a tripped bus circuit breaker C. high mica segments on the stator bus bar D. excessive prime mover speed

Last Answer : Answer: A

Description : Which of the following problems will occur if the circuit breaker of the incoming alternator is closed and it is 180° out of phase with the loaded alternator when paralleling? A. The rotor of the ... The rotor of the incoming alternator will stop. D. Both alternators will parallel 180° out of phase.

Last Answer : Answer: B

Description : Which of the following actions must be carried out prior to closing the alternator circuit breaker according to the graph shown in the illustration? EL-0002 A. Increase the alternator voltage. B. Decrease the line voltage. C. Increase the line voltage. D. Decrease the line frequency.

Last Answer : Answer: A

Description : An alternator will fail to produce line voltage as a result of _____________. A. a closed circuit breaker B. oxidized slip rings C. improperly staggered brushes D. exciter generator failure

Last Answer : Answer: D

Description : In order to safely carry out repairs to a generator circuit breaker, it must be isolated from the bus. This is accomplished by opening the _____________. A. reverse power relay B. bus disconnect link C. generator bus fuse connections D. power directional relay

Last Answer : Answer: B

Description : A circuit breaker for a 300 KW alternator is rated at 470 amperes of full continuous load. The amount of overcurrent allowed is 125%. Which of the following conditions will trip the breaker? A. ... 10 minutes. C. Momentary starting load of 550 amperes. D. Sustained current flow of 590 amperes.

Last Answer : Answer: D