How do you use a multimeter?

How do you use a multimeter?
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1 Answer

Answer :

Ask E/O as you will have to see how to use it on ship.
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Digital version of an AVO meter is known as a) Digital Ohmmeter b) Multimeter c) Digital Multimeter d) None of these

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Last Answer : c) Digital Multimeter

I accidently soaked an extension cord. Is it safe to use it again after letting it dry out for awhile?

Description : I accidently soaked an extension cord. Is it safe to use it again after letting it dry out for awhile?

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The use of permanent magnets is. not made in (a) magnetoes (6) energy meters (c) transformers (d) loud-speakers

Description : The use of permanent magnets is. not made in (a) magnetoes (6) energy meters (c) transformers (d) loud-speakers

Last Answer : (c) transformers

Indicatewhich one ofthe followingreasonsforthe use of a groundscreenwith antennasisfalse: a. Impossibility of a good ground connection b. Provision of an earth for the antenna c.Protectionofpersonnelworkingunderneath d. Improvement of the radiation pattern of the antenna

Description : Indicatewhich one ofthe followingreasonsforthe use of a groundscreenwith antennasisfalse: a. Impossibility of a good ground connection b. Provision of an earth for the antenna c.Protectionofpersonnelworkingunderneath d. Improvement of the radiation pattern of the antenna

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One ofthe followingis not a reason forthe use of anantenna coupler: a. To make the antenna look resistive b. To provide the output amplifier with the correct load impedance c. To discriminate against harmonics d. To prevent reradiation of the local oscillator

Description : One ofthe followingis not a reason forthe use of anantenna coupler: a. To make the antenna look resistive b. To provide the output amplifier with the correct load impedance c. To discriminate against harmonics d. To prevent reradiation of the local oscillator

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What do we use for welding on ships? AC or DC?

Description : What do we use for welding on ships? AC or DC?

Last Answer : Ask E/O on your ship.

Why is DC not much in use now?

Description : Why is DC not much in use now?

Last Answer : AC generators are a better technology and voltage transformation (by transformers) is easy is possible in AC and not DC.

The deflection system of a TV picture tube makes use of a) magnetic deflection b) electric deflection c) Both (a) and (b) d) None of these

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5) An iron ring of mean circumference of 80 cm is uniformly wound with 500 turns of wire. Calculate the value of flux density that a current of 1 A would produce in the ring. Assume relative permeability 1400.

Description : Please ripley me due to emergency

Last Answer : To calculate the flux density in the ring, you need to use the following formula: B = (μ * I * N) / (2 * π * r) where: B is the flux density in the ring (in teslas) μ is the relative permeability ... 2 * π * 0.127 m) = 0.53 T So the flux density in the ring would be approximately 0.53 teslas.

Can you help me solve my electrical mystery?

Description : Can you help me solve my electrical mystery?

Last Answer : Any signs of animal life? They can get in the walls and chew on the wires. Or is it the entire area served by that breaker? The breaker could be bad. It happens with anything mechanical.

How to tell if a power strip is burned out?

Description : How to tell if a power strip is burned out?

Last Answer : answer:Personally, I would either toss it, or down grade it to outdoor use only. I wouldn’t take a chance with it in the house. Yes, you can let it cool down, then test it again. But a failure is a failure. Does it have a reset button? What price range did you pay?

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Description : How can a solar array power source be bypassed when the batteries run low?

Last Answer : Ah got it. If anyone else is interested, you need an “automatic transfer switch” – or get a manual one for that mad scientist charm.

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Description : How to stop a signal going through a wire?

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Last Answer : Pull the Thermostat off the wall and see if it is connected correctly to the AC switch. There should be no dangling wires, and the post labeled for the AC should have an attached wire.

What is the speaker driving voltage of an amplifier?

Description : What is the speaker driving voltage of an amplifier?

Last Answer : I have to ask WHY? That said, Speakers and a light bulb are two different types of load, and the the lights will probably fry the output transistor.

Why is my Garbage disposal leaking water from the bottom?

Description : Why is my Garbage disposal leaking water from the bottom?

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Have you ever taken a shower or bath during an electrical storm?

Description : Have you ever taken a shower or bath during an electrical storm?

Last Answer : I’ve heard this rumor, and I too question it’s validity. I mean, if electricity can’t travel up a stream of urine (See mythbusters) I’m pretty sure it couldn’t travel through a shower stream. Perhaps through the drain? In either case, I’ve taken a shower in a storm before, and.. well, you see?

Electrical breaker box is buzzing-why??

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Substances which have permeability less than the permeability of free space are known as (a) ferromagnetic (b) paramagnetic (c) diamagnetic (d) bipolar

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Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials

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