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31 Cards in this Set

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T OR F
CROSS SECTIONS SHOW SOIL MORE READILY THAN DULL FIBERS HAVING ROUND CROSS SECTIONS
TRUE
COVERING POWER
THE ABILITY OF A TEXTILE STRUCTURE TO COVER OR CONCEAL AN AREA WITHOUT UNDUE WEIGHT. THE EFFECTIVENESS WITH WHICH FIBERS COVER A SURFACE DEPENDS ON STRUCTURAL FEATURES - ACROSS-SECTIONAL SHAPE AND LONGITUDINAL CONFIGURATION - AND SPECIFIC GRAVITY. FIBERS WITH A NATURAL OR ENGINEERED CRIMP OR COILED CONFIGURATION COVER MORE SURFACE AREA THAN DO STRAIGHT FIBERS.
OTHER THINGS BEING EQUAL, WHICH FIBER WOULD PROVIDE A FABRIC WITH THE GREATEST COVERING POWER - POLYESTER, NYLON OR OLEFIN?
OLEFIN
COVERING POWER MAY BE EXPLAINED AS THE ABILITY OF A TEXTILE STRUCTURE TO COVER OR CONCEAL MAXIMUM SURFACE AREA WITH ________ WEIGHT
MINIMUM
ASSUMING EQUAL DIAMETERS: THE FIBER WITH A ____ SPECIFIC GRAVITY WOULD PROVIDE PROVIDE HIGHER COVERING POWER THAN WOULD THE FIBER WITH A ___ SPECIFIC GRAVITY
LOW
HIGH
ELECTRICAL CONDUCTIVITY AND RESISTIVITY
TERMS OF OPPOSITE MEANING THAT DESCRIBE THE RELATIVE EASE WITH WHICH A FIBER CONDUCTS OR RESISTS THE FLOW OF ELECTRONS. THE CONTINUAL MOVEMENT AND RAPID DISSIPATION OF ELECTRONS OVER LARGE AREAS ARE CRITICAL INFLUENCES ON STATIC DEVELOPMENT.
CONDUCTORS
FIBERS THAT KEEP ELECTRONS FLOWING, MMINIMIZING THEIR ACCUMULATION, ARE CLASSIFIED AS CONDUCTORS, IN CONTRAST TO INSULATORS.
EXAMPLES OF FIBERS WHICH ARE CONDUCTORS
OLEFINS, ACRYLICS, AND MODACRYLICS ARE CONDUCTORS AS ARE METAL FIBERS.
T OR F
FIBERS KNOWN TO BE POOR ELECTRICAL CONDUCTORS (E.G. GOOD ELECTRICAL INSULATORS SUCH AS WOOL, NYLON AND POLYESTER) TEND TO BUILD UP ELECTRONS ON THE SURFACE
TRUE
THE LEVEL OF RELATIVE HUMIDITY HAS
AN IMPORTANT EFFECT ON STATIC DEVELOPMENT
THE BASIC PROBLEM OF STATIC DEVELOPMENT IS
THE AVAILABILITY OF ELECTRONS ON THE FIBER'S SURFACE; THE BASIC ATTEMPT TO CONTROL STATIC, THEREFORE, IS TO PREVENT THIS BUILDUP SO ELECTRONS WILL NOT BE AVAILABLE FOR TRANSFER
THE TRIBOELECTRIC SERIES IS USED TO INDICATE THE RELATIVE AMOUNT OF HEAT ENERGY REQUIRED FOR RELEASING ELECTRONS FROM THE SURFACE OF FIBERS:
FIBERS REQUIRING HIGHER LEVELS OF HEAT GENERATE LOWER LEVELS OF VOLTAGE ON THE BODY
IF A PERSON WALKS WITH A SCUFFING MOVEMENT
THE ACTION RUBS MORE ELECTRONS ON THE CARPET SURFACE
INDIRECT YARN NUMBER SYSTEMS, SUCH AS THE COTTON COUNT, WORSTED COUNT, AND THE LINEN LEA SYSTEMS, YARN NUMBERS ARE BASED ON
LENGTH PER UNIT OF WEIGHT
WHICH OF THE FOLLOWING IS THE LARGEST YARN?
A) 30cc
B) 40cc
C) 15cc
D) 10cc
D) - 10cc
IF ONE POUND OF CLEAN COTTON FIBER WAS USED TO PRODUCE 8400 YARDS OF YARN, HOW MANY YANKS WERE PRODUCED?
10
BOUCLE
COMPLEX YARN WITH PRONOUNCED, CLOSED LOOPS THAT VARY IN SIZE AND SPACING
CABLE YARNS
SIMPLE YARN FORMED BY PLYING TWO OR MORE CORDS
CARDING
COMBING FIBERS TO ALIGN THEM IN THE YARN PRODUCTION PROCESS
CHENILLE YARNS
YARN-LIKE STRAND CUT FROM LENO-WOVEN FABRIC THAT HAS FINE WARP YARNS AND COARSE FILLING YARNS; FLUFFY STRAND IS SAID TO RESEMBLE A CATERPILLAR
COMPLEX YARNS
DECORATIVE YARNS HAVING A BASE YARN, A FANCY YARN, AND/OR A BINDER OR TIE YARN.
FLAME YARN
COMPLEX YARN PRODUCED BY TWISTING A SIMPLE YARN AROUND A SINGLE SLUB YARN THAT HAS LARGE AND ELONGATED AREAS OF LOW TWIST.
GIMP YARNS
YARN FORMED BY SPIRALLY WRAPPING ONE YARN AROUND ANOTHER, OR BY BRAIDING THREE OR MORE STRANDS AROUND ONE CENTRAL YARN.
HAWSER
SIMPLE YARN FORMED BY TWISTING TWO OR MORE ROPES TOGETHER
NUB YARNS
COMPLEX YARN WITH TIGHTLY COMPACTED PROJECTS CREATED AT IRREGULAR INTERVALS ALONG ITS LENGTH.
RATINE YARNS
COMPLEX YARN WITH SMALL, UNIFORMLY SPACED LOOPS OF EQUAL SIZE.
SLUB YARNS
COMPLEX SINGLE YARN WITH FINE AND COARSE SEGMENTS ALONG ITS LENGTH, WHICH ARE PRODUCED BY VARYING THE LEVEL OF TWIST USED IN SPINNING
SPIRAL YARNS
COMPLEX YARN FORMED BY TWISTING A HEAVY YARN AROUND A FINE YARN
SPLASH YARNS
COMPLEX YARN HAVING ELONGATED NUBS ALONG ITS LENGTH
TEXTURING
INTRODUCING MULTIDIMENSIONAL CONFIGURATIONS TO OTHERWISE PARALLEL AND SMOOTH FILAMENTS
TOW
A ROPE-LIKE BUNDLE OF MANUFACTURED FILAMENTS HAVING CRIMP BUT NO TWIST