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julia-pushkina [17]
4 years ago
8

Which bulb has the lowest total cost of operation? (a) Incandescent (b) Fluorescent (c) LED

Engineering
1 answer:
Finger [1]4 years ago
6 0

Answer: LED have the lowest cost of operation.

Explanation:

If we ignore the initial procurement cost of the items the operational cost of any device consuming electricity is given by

Cost=Energy\times cost/unit

Among the three item's LED consumes the lowest power to give the same level of brightness as compared to the other 2 item's thus LED's shall have the lowest operational cost.

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Which is an example of a subsystem and system relationship?
Zanzabum

The example of a subsystem and system relationship is option

A) mechanical toggle, Xbox controller

Explanation:

  • Controls and Controllers are known as the mechanical, electro-mechanical, or electronic devices which are used to  input signals to change the conditions or values which are in processes or access to buildings, operators, gated areas, etc.
  • When you press and hold the given Shift button, these buttons which are chosen becomes an alternate inputs.
  • Normally, there are three controllers(PID) which are used in any of the process industries inorder to maintain and control the required setpoint.
  • an example of a subsystem and system relationship is a mechanical toggle, Xbox controller
  • Controllers improve the steadiness and state of accuracy by decreasing the steady state error. When the steady state accuracy gets better, the stability also improves.
  • Controllers are also used to help in reducing the unwanted offsets which are produced by the system.

6 0
3 years ago
4. The instant the ignition switch is turned to the start position,
geniusboy [140]

Answer:

D. Both pull-in and hold-in windings are energized.

Explanation:

The instant the ignition switch is turned to the start position, "Both pull-in and hold-in windings are energized." This is because the moment the ignition switch is turned to the start position, voltage passes through to the S terminal of the solenoid.

The hold-in winding is attached to the case of the solenoid. Similarly, the pull-in winding is also attached to the starter motor. Thereby, the current will move across both windings by getting energized to generate a strong magnetic field.

4 0
3 years ago
What is the difference between filler and electrode in Welding? Can a filler be an electrode? Can an electrode be a filler? Why?
Vlada [557]

Explanation:

<u>Filler:</u>

  Filler is the material rod is used when we are joining two material by using welding process.If thickness of work piece is more so it will become compulsory to provide some filler material for making the welding join to withstand high stresses.

<u>Electrode:</u>

  Electrode is the element which is used to complete the electric circuit in welding .Some time electrode is connected with positive terminal and some time with negative terminal ,it depends on the requirement of welding process.In Tungsten inert gas welding electrode is connected negative terminal but on the other hand Metal inert gas welding electrode is connected with positive terminal.Electrode can be consumable non-consumable depends on the condition.

Yes electrode can be work as filler material ,in Metal inert gas welding wire is used as electrode as well as filler material.In Metal inert gas welding consumable electrode is used on the other hand Tungsten inert gas welding non-consumable electrode is used.In Tungsten inert gas welding if thickness of work pieces is less than 5 mm then no need to used any filler material but if thickness is more than 5 mm then we have to use filler material.

8 0
3 years ago
trevor moves a magnetic toy train away from a magnet that cannot move. what happens to the potential energy in the system of mag
Nimfa-mama [501]

Answer:a

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6 0
3 years ago
During the expansion process of the ideal Otto cycle, the gas is a mixture whose volumetric composition is 30 percent nitrogen,
zepelin [54]

Answer:

it is 35 for model and use copper gas

6 0
3 years ago
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