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[ ] Yes [ ]No

Ars†28-797 school crossings

The highway commission may establish crosswalks in front of each school building or school grounds abut­ting thereon where children shall be required to cross the highway or street. Additional crossings across highways not abutting on the school grounds may be approved by the highway commission upon appli­ca­tion of school authorities. The district should assure that adults are used as guards at no abutting school crossings.

When school crossings are established, do school authorities cause to be placed within the highway portable signs indi­cating that school is in session, placed not to exceed 300 feet each side of the school crossings, and "Stop When Children In Crosswalk" signs at school crossings, and do school authorities maintain these signs when school is in session and cause them to be removed immediately thereafter? Notwithstanding any other law.

[ ] Yes [ ]No

Ars† 28-857 overtaking and passing school bus (2006)

Does every bus used for the transportation of school children bear upon the front and rear of such bus a plainly visible sign containing the words "School Bus" in letters not less than eight inches in height, and have a signal with the word “stop” printed on both sides in white letters not less than five inches high on a red background. When a school bus is being operated upon a highway for purposes other than the actual transportation of children either to or from school, are all markings indicating "School Bus" covered or concealed?

Is every bus used for the transportation of school children equipped with a signal with the word "Stop" printed on both sides in white letters not less than five inches high on a red background, and is the signal an 18-inch reflectorized octagon sign manually operated by the operator of the school bus in such manner as to be clearly visible from both front and rear when extended from the left of the body of the bus?

Does the district ensure that operators of school buses display the stop signal and alternately flashing lights if passengers are being received or discharged while the bus is stopped on the roadway?

[ ] Yes [ ]No

Ars† 28-900 rules relative to school buses

Does the district, in order to reduce the interior temperature of a school bus, allow the exterior top of the bus to be painted white? The white area shall not extend beyond the center clearance lights, front and rear, and shall not extend below a line five inches above the top of the side windows.

[ ] Yes [ ]No

Ars† 28-901 maximum number in school bus; exceptions; receiving or discharging school children at school

Does the district assure that no school bus shall be operated on a public highway while carrying more than can be properly seated, nor while any person is standing therein, except for the purpose of conducting drills under school regulations and in the emergency evacuation or dispersal of pupils and school personnel?

[ ] Yes [ ]No

Ars† 28-930 special lighting equipment on school buses

Does the district ensure that bus operators do not operate any alternately flashing warning signal light on any school bus except when the school bus is within 100 feet of a stop, or is stopped, on a highway for the purpose of permitting school children to board or alight from it?

Questions & Answers

what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Arizona education law review: gary emanuel, northern arizona university. OpenStax CNX. Oct 09, 2009 Download for free at http://cnx.org/content/col11123/1.6
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