Crash accident Investigation test 1

which of newtons laws of motion does the following describe? a body persists in a state of rest of uniform motioon unless acted upon by an external force

1st law of motion

F=MA describes which law of motion

2nd law of motion

which of newtons laws of motion does the following describe? to every action there is an equal and opposite reaction

3rd law of motion

motor vehicle accidents accounted for approx. how many deaths in the United states in the year 2005

45,800

which of the five levels of accident investigation deals with qualitative, speculative,statistical interpretation of data completed mostly by the government

Cause analysis

which federal organization created the highway safety matrix

NHTSA

T or F there are two coordinates that are always at 90 degrees (right angles) to eachother

True

your final product from your efforts to collect roadway evidence will contain two parts. which are they

a free hand feild scetch and a list of measurements

we define some vehicle dynamics terms in AI.the term that defines "time rate of change of velocity" is which of the following

acceleration

there are different collisions in a crash and they include which of the following

all the above

when you identify spots on your diagram you will do everything except the following: utilize crime scene lettering if needed, assign an identifying letters to each spot, assignn a spot direction arrow mark locator)

assign a spot direction arrow mark locator

the coordinate system of measuring generally is considered a better approach than triangulation method. according to text, which of the following does not apply to this theory

drawing scale diagrams can only be accomplished with triangulation

which element is most likely to have caused a traffic accident

driver behavior

in the accident matrix definition, there are 3 elements. what are they

driver, vehicle, roadway

there are three Es of traffic safety what are they

enforcement, education, engineering

t or f a good reference point wouls be a tree

false

t or f first contact in the 'chain of events' refers to the largest amount oof energy dissipated in the crash

false

t or f the OH-1 ia the best example of a thorough, total Accident reconstruction

false

t or f triangulation is the most common method for making field sketches at accident scenes

false

t or f using a rolatape wheel is not recommended for roadway measurements, as it is not exact enough for preparing scale diagrams

false

t or f your final product from your roadway measurements will contain 3 things. a field, a sketch, a matrix and a graph

false

t or f your odds of being involved in a fatal crash in your lifetime are 1 in 10,00

false

marks the end of the "chain of events", that is, nothing further will occur insofar as the event is concerned. it may be brief , but it separates the end of one event from the beginning of another event caused by further action

final rest

on earth, the intrusion og outside force, most notably_______prevents objects from behaving perfectly according to the first law of motion

friction

one measurement will adequately locate the following items(evidence). whcih of the following is not one of them (small debris areas less than 3 feet, collision scrubs less than3 feet long, small scrapes on guardrails, gouges greater than 8 ft long)

gouges greater than 8 feet long

which of the following is an advantage for using accident forms (they stifle inquiry, when complete investigation is complete, they will fulfill unusual situations, information is standarized and classified)

information is standarized and classified

which of the following in the "chain of events" has the greatest amount of energy exchanged (point of first actual perception,maximum engagement, seperation, final rest)

maximum engagemnt

Y or N you are detailed to "road rage" incident and one vehicle operator purposely collides with another vehicle. you decide you should complete a crash report. are you correct

no

Y or N you are detailed to an accidnet scene at a railroad crossing with a pedestrian that was struck inside the railway right-of-way. you decide that this fits the definition of a motor vehicle crash and you complete an accident report. are you correct

no

in the chain of events, this describes the point in which the danger was observed

poin tof actual perception

when choosing the reference point (zero), which of the following examples would you not consider

realty sign

completing the basic OH-1 form would involve this stage (of the 5 stages)

reporting-level 1

which of the following is the most reliable to obtain information from (people, roadways,media,witnesses)

roadways

equipment used for roadway measurements would include everything except which of the following

rodometer

accident investigation is not an exact science. it combines ____and ____

scientific principles and art

which of the following requires two spot measurement (point of first possible minimum engagement small debris areas less than 3 feet long, straight tire marks beginning to end)

straight tire marks beginning and end

the following describes what physical component in accident investigation: "period with limits, measured by the interval between events" and " a limited period during which an action, process or condition exists ot takes place".

time

this is an electronic/optical instrument used in the modern surveying that is also utilized in accident investigation

total station

T of F in the chain of events , point of first possible percertion refers to when someone could ppossibly first observe the danger

true

t or f a disadvantage of using forms is it stifles inquiry

true

t or f acceleration is defined as a time rate of change of velocity

true

t or f all 3 laws of motion apply to crashes

true

t or f dynamics is the study of motion with regard to what caused that motion

true

t or f for most traffic collisions, inivestigations do not go beyond first-level reporting

true

t or f in every collision, the first thing to do on arrival at the scene is to keep the collision form getting any worse

true

t or f the most important measurements you can take at the accident scene are the vehicle final rest locations

true

t or f there were more people dying from car crashed than from violent crimes

true

t or f triangulation would be a good method of making measurements in a remote location where no RL could be found

true

there are only a few circumstances in which triangulation method is better than coordinate method. which would not apply

you have a RP and a RL for your reference

which of the following is untrue concerning the coordinate method of measuring

you mudt take 4 measurements for each spot on your diagram