Which resource can tell you what types of insulation you can use in a given installation? a. NESC b. NFPA c. NIOSH d. NEC

Answers

Answer 1

Answer:

D. NESC

Explanation:

first of all what's the meaning of NESC:

NESC: National Electrical Safety Code

The National Electrical Safety Code is a United States standard of the safe operation, maintenance, and installation of communication ,

utility system and electric power.

Which includes the following.

1.) power and communication underground lines

2.)power and communication overhead lines,

3.) Power substations

NESC are the ones to tell us the type of installation to use for a particular operation and particular location.

For both safety purposes and to reduce life hazard and community hazard due to elect item.


Related Questions

what is your favorite generation of the mustang?

Answers

Answer:

6TH AKA THE 2015-PRESENT

Explanation:

Answer:

I like them all except '74ish all the way up to '93.

If sail boats A and B are approaching each other with the wind on different sides, why is vessel A considered the give-way vessel (vessel that must take early and substantial action to avoid a collision)?

Answers

Answer:

The reason is because when the wind approaches each sailboat from a different side, the sailboat that the wind approaches from the port side, which is the left side is the give-way vessel.

Whereby the wind approaches the vessel A from the port (left) side then vessel A is considered the give-way vessel

The give-way vessel is the vessel that will have to take expeditious steps to create  access for the other vessels by either changing course, stopping, or moving with reduced speed

Explanation:

You are driving a vehicle that has an automatic transmission. When you park on a hill, you
should
A: Set the parking brake first, before you shift the transmission into Park.
B: Shift the transmission into Park, and leave the parking brake off.
C: Set the parking brake, and shift the transmission into Neutral.

Answers

Answer:

The answer is A. Set the parking brake first, before you shift the transmission into Park.

An automatic gearbox is a multi-speed transmission system. The correct option is A.

What is the automatic transmission?

An automatic gearbox is a multi-speed transmission system that is used in internal combustion engine-powered motor vehicles that do not require any driver input to change forward gears. Thus, making the process of shifting gears automated.

The correct way to park an automatic transmission vehicle is to set the parking brake first before you shift the transmission into Park. Therefore, the correct option is A.

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You should continuously work to enhance your skills and knowledge .

Answers

Answer:

Improve Your Writing

You may need to improve your ability to express yourself in writing.

To some degree, most organisations rely on the accurate transfer of information and that calls for the accurate use of language. When speaking, most people make multiple errors of grammar and vocabulary, and nobody seems to mind. But when you are doing business at work, then the business agreement is usually in the form of a written document; and that document has to be worded properly.

How would you rate your ability to express yourself properly in writing? Are you a good writer or do you lack knowledge of grammar, punctuation, logic and rhetoric?

If you are not as good at writing as you need to be, then study grammar, study punctuation, logic and rhetoric.

Start by buying a copy of a book called 'Rex Barks' by Phyllis Davenport.

This book is the gateway to grammar - and Phyllis is phenomenal.

Explanation:

what kind of line is used to indicate the supporting beam

Answers

Answer:horizontal

Explanation: because it is supporting it

Built-up roofing, also called BUR, is the most common roofing material used on low-slope roofs. It is composed of alternating layers of reinforcing fabric and bitumen (asphalt) and is finished with a top layer of aggregate, such as stone or gravel.

Which of the following is the last step in creating a budget?
A. Identify income
B. Identify variable expenses
C. Identify fixed expenses
D. Determine savings or debt

Answers

Answer:

D. Determine saving or debt

Explanation:

__is a mechanical force generated by a solid object moving through a fluid.

Answers

Answer:

Drag

Explanation:

a steal bar with 1 in diameter has been subjected to a tensile force of 3 tons find tensile stress in the bar

Answers

Answer:

stress = 8,556 Psi.   or  (stress = 59 Mpa)

Explanation:

stress = force / area

force P = 3 tons (convert to lbs. for units consistency)

1 ton = 2240 lbs.

P = 6,720 lbs.

steel bar Diameter D = 1 in. (convert to d

Area of steel bar = (π *  1²) / 4 = 0.785 in²

therefore, stress = 6720 lbs. / 0.785 in²

stress = 8,556 Psi.

in Mpa ----- 8556 Psi * 0.00689476 MPa/Psi = 59 Mpa

If you think a hazard is serious, what is the best way to ensure that OSHA will
conduct a site inspection?
Help

Answers

Answer:

The best way to ensure that OSHA will conduct a site inspection is by the submission a signed (by a current employee or employee representative) Formal Written complaints following OSHA guidelines (which can be found in the  Council of Safety and Health (COSH) website) which will enable the commencement of process for an on site inspection

As such it is advisable to go through the following procedure before, filing a complaint

1) Talk to your workers union about the hazard

2) If you do not belong to a union, talk to your co-workers

3) Inform your employer who has responsibility for on the job safety

4) Speak or have a meeting with OSHA so as to receive guidance before filing a complaint

Explanation:

If you think a hazard is serious, the best way to ensure that OSHA will conduct a site inspection is to file a complaint.

Hazard simply means a potential source of harm. It should be noted that hazards can have detrimental effect on the health of an individual.

If you think a hazard is serious, the best way to ensure that OSHA will conduct a site inspection is to file a complaint asking OSHA to inspect the workplace. In a situation whereby OSHA finds a serious hazard, it'll be kept confidential.

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When you arrive at an intersection with a stop sign in your direction, if there is no marked stop
line, you must
A: Stop within 10 feet of the intersecting roadway, on top of the pedestrian crosswalk if there is one.
B: Wait for pedestrians in the crosswalk to cross, then stop on the pedestrian crosswalk.
C: Stop before entering the pedestrian crosswalk.

Answers

Answer:

The answer is B. Wait for the pedestrians in the crosswalk to cross, then stop on the pedestrian crosswalk.

Based on the concept of road usage, and the available options, when you arrive at an intersection with a stop sign in your direction, if there is no marked stop line, you must Stop before entering the pedestrian crosswalk.

What is Pedestrian Crosswalk?

Pedestrian Crosswalk is a term that is used to describe a place designated for pedestrians to cross a road, street, or avenue.

Generally, the term "pedestrian crosswalk" is also used in the Vienna and Geneva Conventions, both of which pertain to road signs and road traffic.

In this case, it is expected that when you arrive at an intersection with a stop sign in your direction, if there is no marked stop line, you must stop at the edge of the intersection just before entering the crosswalk or intersection.

It's important to come to a complete stop to ensure that it is safe to proceed before proceeding through the intersection. Be careful and aware of your surroundings to ensure a safe and steady flow of traffic.

Hence, in this case, it is concluded that the correct answer is option C. Stop before entering the pedestrian crosswalk.

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The ramp in the railway station has rough surface .why?

Answers

Answer:

To increase the friction so we do not slip while walking.

Explanation:

If the surface is smooth then the frictional force between the ramp and the feet becomes less and the chances of slipping are greater.

The ramp on a railway station has a rough surface to increase friction so that we do not slip while walking on it. If the surface is smooth, then the frictional force between the ramp and the feet becomes less and the chances of slipping are greater.

4. Two technicians are discussing the evaporative emission monitor. Technician A says that serious monitor faults cause a blinking malfunction indicator lamp
(MIL) or even an engine shutdown. Technician B says that the engine computer will run the EVAP monitor when fuel level is within 15 to 25 percent and the TP
sensor position is between 9 and 10 percent. Who is correct?
O A. Neither Technician A nor B
O B. Both Technicians A and BN
O C. Technician A
OD. Technician B

Answers

Answer:

The correct option is;

Neither Technician A nor B

Explanation:

The evaporative emission monitor or Evaporaive Emission Control System EVAP System monitors enables the Power Control Module of the car to check fuel system leak integrity and the vapor consumption efficiency during engine combustion

It is a requirement of EPA on cars to check the emission of smug forming evaporates from cars

Serious monitor faults can cause the turning on of the check engine lights and the vehicle will not pass OBD II test, but it will not lead to engine shutdown

It runs when the engine is 15 to 85% full and the TP sensor is between 9% and 35%.

Therefore, the correct option is that neither Technician A nor B are correct.

2. What is the charge, expressed in micro coulombs on two equally and similarly charges spheres placed in air with their centres 30 cm apart repelling each other with a force of 120 mgm.

Answers

Answer:

q = 0.1086 micro Coulombs

Explanation:

By Coulombs law, we have;

[tex]F =k \times \dfrac{ q_1 \times q_2}{r^2}[/tex]

Where;

F = The electric force = 120 mgm

q₁ and q₂ = Charge

r = The separating distance = 30 cm = 0.3 m

k = 8.9876×10⁹ kg·m³/(s²·C²)

Where, q₁ and q₂, we have;

[tex]F =k \times \dfrac{ q^2}{r^2}[/tex]

Whereby the force is the force of 120 milligram mass, we have;

0.00012 × 9.81 = 000011772 N

[tex]q = \sqrt{ \dfrac{ F\times r^2}{k}}[/tex]

Substituting the values, we have;

[tex]q = \sqrt{ \dfrac{ 000011772 \times (0.3)^2}{8.9876 \times 10^9}} = 1.086 \times 10 ^{-7} \ Coulombs[/tex]

q = 0.1086 micro Coulombs.

3. An underground copper pipe is used to transport oil under a factory. It is very important that this pipe does not oxidize, so engineers use impressed current cathodic protection. a. Would zinc be an appropriate metal to use for cathodic protection? Why or why not? (4 points) b. Engineers attach a sacrificial anode to the copper pipe. To use impressed current cathodic protection, they must attach a battery between the cathode and anode. Which material should the positive side of the battery be attached to? Explain how you know. (4 points)

Answers

Answer:

a) Copper corrosion is prevented by an external current source that provides a condition around the copper that halts the rust through current cathodic protection

Due to the location of the pipeline, an material such as graphite, titanium, or niobium can be used which lasts longer that zinc can be used for longevity of the protection

b) The positive side of the output DC terminals are attached to the anodes such as graphite, while the negative terminals are connected to the copper pipe to be protected

Explanation:

Making the protected metal the cathode will make the metal be the source of electrons into the reaction taking place such that the release of the positive metal ions that results in disintegration takes place at the anode and as such the protected metal made the cathode, to which the negative terminal of the battery is attached is protected.

Tech A says never disconnect sensors before conducting resistance checks. Tech B says automotive test lamps should not be used on digital circuits because they draw too much current and can overload the circuit. Who is correct?

Answers

Answer:

12345263636636363663636e6ee66e6e6e63777e

what is the difference between science and engineering?

Answers

Answer:

The following table is among some of the discrepancies between some of the different topics.

Explanation:

Science seems to be the application of structured organized facts which could be interpreted scientifically because when engineering would be a branch of science which deals with either the profession of acquiring including using technological, computational, economical and severity of adverse effects to design and manufacture equipment and devices that seem to be beneficial to mankind.Science would be a set of information and established frameworks whereas the use of these models and information to construct structures as well as mechanisms becomes engineering.
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