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Kevlar Quiz Number: 9 Course Name: Industrial Technology/Engineering Quiz N0. = 9 Teacher: E. Schmidt Teacher's Home Page: http://www.oocities.org/Baja/2140/ENG.htm Teacher's Email: schmidte@putnam.k12.il.us

Student Name: Student No:

No. of Questions= 15 ,Pass mark is - 70 %. You can press the Mark it button at the bottom of the page to have the quiz marked.

1.	Kevlar is one of the most important manmade organic _______ ever made:
	a)	metals
	b)	plastics
	c)	woods
	d)	ceramics
	e)	fibers
2.	the fibers of kevlar consist of long molecular chains produced from:
	a)	poly-paraphenylene terephthalamide
	b)	sodium chloride
	c)	poly-tetras-formalyde
	d)	alpha-compo-chloride
	e)	hydrogen-sodium polytetra
3.	Kevlar has a high tensile strength at low:
	a)	volume
	b)	area
	c)	temperatures
	d)	weight
	e)	boiling point
4.	Another name for high modulus is:
	a)	conductivity
	b)	dimensional stability
	c)	structural rigidity
	d)	resistance
	e)	thermal shrinkage
5.	Kevlar has a high resistance to:
	a)	water
	b)	heat
	c)	dirt
	d)	chemicals
	e)	wind
6.	Kevlar has a high ____ resistance
	a)	shear
	b)	tear
	c)	fold
	d)	twist
	e)	cut
7.	How easy does electricity travel through kevlar:
	a)	goes thru easily
	b)	it has low electrical conductivity
	c)	it only goes thru wet kevlar
	d)	it only goes thru thin kevlar
	e)	it only goes thru thick kevlar
8.	When you put a flame to kevlar it:
	a)	burns
	b)	puts the flameout
	c)	just melts
	d)	resists it
	e)	turns a reddish color
9.	If kevlar catches on fire it will:
	a)	burn completly
	b)	self extinguish
	c)	melt
	d)	give off toxic fumes
	e)	give off blue flames
10.	Some Defense uses of kevlar are:
	a)	Anti-mine boots
	b)	cut resistant gloves
	c)	composit helmets
	d)	bullet proof vests
	e)	all of these
11.	Some automotive uses of kevlar are:
	a)	heating and cooling systems
	b)	hoses
	c)	belts
	d)	all of these
	e)	none of these
12.	Kevlar is used in composites in what area:
	a)	appliances
	b)	boats
	c)	farm machinery
	d)	life rafts
	e)	none of these
13.	Kevlar might be used in which of these areas:
	a)	communacation cables
	b)	ignition wires
	c)	submarines
	d)	all of these
	e)	none of these
14.	Kevlar is used in tires for what use:
	a)	aircraft
	b)	automobiles
	c)	trucks
	d)	off road
	e)	all of these
15.	Kevlar is not use in which of these areas:
	a)	car transmissions
	b)	fish line
	c)	braking systems
	d)	tow lines
	e)	rafts

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