1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Simora [160]
3 years ago
13

You test the lighting for the first time none of the new lights work, but the old ones do. What should you do first?

Engineering
2 answers:
Naily [24]3 years ago
6 0

Answer:

I think you should make sure that the circuit is closed

Explanation:

Ne4ueva [31]3 years ago
5 0
The circuit probably isn’t closed so make sure it is
You might be interested in
A 100-horsepower, three-phase squirrel-cage induction motor is connected to a 240-volt line. A dual-element time-delay fuse is t
antoniya [11.8K]

Based on the National Electrical Code (NEC), a 450-Ampere fuse should be used to protect this polyphase (three-phase) squirrel cage inductor motor.

<u>Given the following data:</u>

  • Power rating = 100-horsepower.
  • Voltage = 240 volt.

<h3>How to determine the correct fuse rating?</h3>

According to Table 430.52 of the National Electrical Code (NEC), a dual-element time delay fuse should be calculated at 175% (1.75) of the full-load current rating for an alternating current (AC) polyphase (three-phase) squirrel cage inductor motor.

In this scenario, the squirrel cage inductor motor didn't list a NEMA design code on its nameplate. Thus, we'll assume that the inductor motor is design B and its fuse rating is given by:

Fuse rating = 248 × 1.75 × 434

In conclusion, the nearest standard fuse size which is above the computed value listed in Section 240.6 of the National Electrical Code (NEC) is 450 amperes.

Read more on National Electrical Code here: brainly.com/question/10619436

#SPJ1

6 0
2 years ago
A group of scientists studied the environmental impact of internal combustion engines burning hydrocarbon fuels. The scientist e
wel

Answer: Combustion of Hydrocarbons

Explanation:

The Independent variable in an experiment is the one whose effect on the dependent variable is being measured. The independent variable therefore is controlled to see the effect it will have in the experiment.

In this experiment, the scientists combusted different types of hydrocarbons (diesel, gasoline, natural gas and a gasoline/ethanol mixture) as they aimed to find out the effect that this burning would have on the environment thereby making the combustion of hydrocarbons the independent variable.

7 0
3 years ago
Calculate the frequencies (in Hz) for the ten lowest modes of a rigid-wall room of dimensions 2.59m x 2.42m x 2.82m (i.e., find
Digiron [165]

Answer:

For This Answer Please See the Attached File.

Explanation:

Download pdf
3 0
3 years ago
A car increases its speed at a constant rate of 1.5 m/s2 as it rounds a curve of radius 200 m. The magnitude of the total accele
vladimir2022 [97]

Answer:

The car's instant speed is 20m/s

Explanation:

a = at + an

The above equation is a vector equation

a is the resultant acceleration

at   is the tangent acceleration

an  is the normal acceleration

See the attached diagram for solution

<h2 />

7 0
3 years ago
What happens if your son makes a spark in a outlet and then the room goes dark
Kitty [74]

Answer:

He probably tripped the wiring, when metal hits the electricity it creates a reaction that burns the wiring.

Explanation:

3 0
3 years ago
Other questions:
  • For flow over a plate, the variation of velocity with vertical distance y from the plate is given as u(y) = ay − by2 where a and
    10·1 answer
  • Problem 8. Define a function gs1_error(n) that accepts as input a non-negative integer n and outputs the error of the Gauss-Seid
    7·1 answer
  • Two different levels of abstraction were introduced in this lab, namely structural and dataflow. Provide a comparison of these a
    9·1 answer
  • You're about to make a measurement with an oscilloscope when you find that the trace appears to be very weak on the screen. Whic
    15·2 answers
  • A waste stabilization pond is used to treat a dilute municipal wastewater before the liquid is discharged into a river. The infl
    9·1 answer
  • An engineer must design a rectangular box that has a volume of 9 m3 and that has a bottom whose length is twice its width. What
    13·1 answer
  • I need help with this assignment. ​
    15·1 answer
  • Determine the 0.25 hour synthetic unit hydrograph for a watershed of the following characteristics:
    12·1 answer
  • Two technicians are discussing torsion bars. Technician A says that many torsion bars are adjustable to allow for ride height ad
    10·1 answer
  • A bridge a mass of 800 kg and is able to support up to 4 560 kg. What is its structural efficiency?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!