62 + Mcqs in X ray Diffraction of Textile Fibres Page 1 McqOptions

1.	X-ray diffraction gives information about
A.	most important level of fibre structure
B.	yarn count
C.	number of yarns
D.	fibre length
Answer» B. yarn count

Discussion

2.	Fibre constitutes
A.	single planes
B.	single crystal
C.	mass of small crystalline
D.	3 crystals
Answer» D. 3 crystals

Discussion

3.	Photograph of asbestos shows
A.	dull spots
B.	sharp spots
C.	random spots
D.	4 spots
Answer» C. random spots

Discussion

4.	Using polarized light helps in
A.	changing pattern
B.	increase available information
C.	increase available information about structure
D.	all of above
Answer» E.

Discussion

5.	Broadening along radius of pattern is characteristic of crystals that are
A.	very small
B.	very imperfect and small
C.	very perfect and small
D.	very big
Answer» C. very perfect and small

Discussion

6.	When layer of atoms make required angle with X-ray beam
A.	particular reflection occur
B.	reflection occur
C.	scattered reflection occur
D.	haphazard reflection occur
Answer» B. reflection occur

Discussion

7.	Computer software helps in
A.	analyzing data
B.	interpreting data
C.	giving signals
D.	both a and b
Answer» E.

Discussion

8.	X-ray diffraction is most important method used for study of
A.	fine matter
B.	rough matter
C.	fibre structure
D.	fibre length
Answer» D. fibre length

Discussion

9.	Each layer of atom shows four spots after diffraction that are
A.	same
B.	of same setting
C.	of different setting
D.	haphazard
Answer» D. haphazard

Discussion

10.	Details of diffraction pattern in three dimensional plane is influenced by whole form of
A.	ion
B.	atoms
C.	atomic arrangement
D.	molecular arrangement
Answer» D. molecular arrangement

Discussion

11.	Reflections giving patterns in asbestos and glass occur at angles upto
A.	5 degrees
B.	7 degrees
C.	10 degrees
D.	15 degrees
Answer» D. 15 degrees

Discussion

12.	Understanding and making use of information received from light passing through slide is called as
A.	diffusion
B.	diffraction
C.	deformation
D.	value formation
Answer» C. deformation

Discussion

13.	If there is no preferred orientation of fibre axis, layers can occur at a series of positions distributed around fibre
A.	center
B.	axis
C.	length
D.	radius
Answer» C. length

Discussion

14.	In optical diffraction, when X-rays are scattered from regular, repetitive lattice, pattern obtained is
A.	simple diffraction pattern
B.	complex pattern
C.	scattered pattern
D.	linear pattern
Answer» B. complex pattern

Discussion

15.	Narrow angle diffraction gives information about the
A.	finest inter-atomic spacing
B.	longer spacing
C.	moderate spacing
D.	variable spacing
Answer» C. moderate spacing

Discussion

16.	Narrow angle diffraction gives information about longer spacing of order of
A.	10 nm
B.	100 nm
C.	10 - 100 nm
D.	100 - 150 nm
Answer» D. 100 - 150 nm

Discussion

17.	Complicated patterns in diffraction helps in retrieving information about
A.	shape of scattered particles
B.	differences in spacing in different directions
C.	differences in spacing in same directions
D.	both a and b
Answer» E.

Discussion

18.	Example of electromagnetic wave is
A.	Gamma rays
B.	X-rays
C.	Beta rays
D.	Alpha rays
Answer» C. Beta rays

Discussion

19.	For obtaining information about fine fibers, waves used are
A.	electromagnetic
B.	electroscopic
C.	electromotive
D.	electrified
Answer» B. electroscopic

Discussion

20.	Increased power of synchrotron radiation reduces
A.	exposure time
B.	crossing time
C.	scattering time
D.	light scattering
Answer» B. crossing time

Discussion

21.	Limit of resolution is order of magnitude of
A.	wavelength of light
B.	wave number of light
C.	wave density of light
D.	wave frequency of light
Answer» B. wave number of light

Discussion

22.	A diffraction grating of normally spaced lines, illuminated by parallel lines will give set of fringes with maxima of
A.	dark bands
B.	light bands
C.	bright bands
D.	moderate bands
Answer» D. moderate bands

Discussion

23.	For preferred orientation of crystals, pattern is
A.	same
B.	complex
C.	different
D.	simple
Answer» D. simple

Discussion

24.	Angles subtended by arcs helps in calculation of fibre's
A.	spiral angle
B.	perpendicular angle
C.	diameter
D.	thickness
Answer» B. perpendicular angle

Discussion

25.	Photograph of glass shows
A.	single halo
B.	double halo
C.	dull halo
D.	diffused halo
Answer» B. double halo

Discussion

26.	Restriction of angles reduces diffraction pattern from circles to
A.	4 spots
B.	3 spots
C.	2 spots
D.	1 spot
Answer» B. 3 spots

Discussion

27.	Information received from scattered light when passed through photographic slide can be converted into a picture on screen using
A.	lens
B.	microscope
C.	slide
D.	information tray
Answer» B. microscope

Discussion

28.	Wide angle diffraction gives information about the
A.	finest inter-atomic spacing
B.	longer spacing
C.	moderate spacing
D.	variable spacing
Answer» B. longer spacing

Discussion

29.	Broadening of spots into arcs shows a decrease in degree of
A.	scattering
B.	orientation
C.	diffusion
D.	diffraction
Answer» C. diffusion

Discussion

30.	Restriction on angles at which crystals lie has reduced the
A.	diffusion
B.	scattering
C.	wavelength
D.	X-ray diffraction pattern
Answer» E.

Discussion

31.	Material that shows double pattern with spacing characteristics of bother natural and regenerated cellulose is
A.	mercerized cotton
B.	simple cotton
C.	raw cotton
D.	processed cotton
Answer» B. simple cotton

Discussion

32.	If position of large number of spots is known, then accurate determination is possible for
A.	structure
B.	spot size
C.	quadrants
D.	diffused angles
Answer» B. spot size

Discussion

33.	When light is passed through a photgraphic slide, it is scattered in
A.	one direction
B.	vertical direction
C.	many directions
D.	horizontal plane
Answer» D. horizontal plane

Discussion

34.	If light is diffracted through a fibre that is gold plated, pattern formed will be
A.	simple
B.	complex
C.	one line
D.	scattered
Answer» B. complex

Discussion

35.	Increase in distance from middle of arc decreases arc's
A.	size
B.	density
C.	intensity
D.	angle
Answer» D. angle

Discussion

36.	Broadening of spots into arcs refers to
A.	good orientation
B.	poor orientation
C.	moderate orientation
D.	haphazard orientation
Answer» C. moderate orientation

Discussion

37.	Layers of atoms producing particular reflection will make a
A.	constant angle
B.	diffused angle
C.	different angle
D.	series of angles
Answer» B. diffused angle

Discussion

38.	After annealing of polyester fibre, spots become
A.	dull
B.	bright
C.	sharp
D.	faint
Answer» D. faint

Discussion

39.	Particular reflection occurs when layer of atoms make required angle with X-ray beam like orientation of crystals around
A.	sphere
B.	cone
C.	cylinder
D.	round
Answer» C. cylinder

Discussion

40.	Diffraction patterns obtained from objects with regular repetitive structure are
A.	useful
B.	useful and simple
C.	useful and complex
D.	complex
Answer» C. useful and complex

Discussion

41.	A faint ring formed in delustred viscose is due to reflection from
A.	titanium oxide
B.	titanium dioxide
C.	titanium
D.	oxide
Answer» C. titanium

Discussion

42.	Very useful information can be obtained from reflections occurring at
A.	large angles
B.	small angles
C.	moderate angles
D.	reflecting angles
Answer» C. moderate angles

Discussion

43.	X-ray beam passing through powdered crystals is called a
A.	inside photograph
B.	wonder photograph
C.	power photograph
D.	powder photograph
Answer» E.

Discussion

44.	Optical diffraction including optical microscopy, even by using ultraviolet radiation will give information only on
A.	coarse features of fibers
B.	fibre structure
C.	structure spacing greater than 0.1 micrometer
D.	all of above
Answer» E.

Discussion

45.	First diffraction pattern considered should be when there is
A.	preferred orientation
B.	no preferred orientation
C.	different orientations
D.	changing orientations
Answer» C. different orientations

Discussion

46.	Analysis of diffraction for a three dimensional plane is
A.	simple
B.	complex
C.	impossible
D.	faulty
Answer» C. impossible

Discussion

47.	Single halo shows characteristics of
A.	amorphous material
B.	rigid material
C.	soft material
D.	porous material
Answer» B. rigid material

Discussion

48.	Patterns are always different for crystals having different
A.	structures
B.	sizes
C.	shapes
D.	all of above
Answer» E.

Discussion

49.	X-ray diffraction can also be used for
A.	identification
B.	separation
C.	combination
D.	studying dimensions
Answer» B. separation

Discussion

50.	In delustred viscose rayon, outside main pattern there is a
A.	3 dimensional ring
B.	clear ring
C.	faint ring
D.	3 point ring
Answer» D. 3 point ring

Discussion

Explore topic-wise MCQs in Textile Engineering.

X-ray diffraction gives information about

Fibre constitutes

Photograph of asbestos shows

Using polarized light helps in

Broadening along radius of pattern is characteristic of crystals that are

When layer of atoms make required angle with X-ray beam

Computer software helps in

X-ray diffraction is most important method used for study of

Each layer of atom shows four spots after diffraction that are

Details of diffraction pattern in three dimensional plane is influenced by whole form of

Reflections giving patterns in asbestos and glass occur at angles upto

Understanding and making use of information received from light passing through slide is called as

If there is no preferred orientation of fibre axis, layers can occur at a series of positions distributed around fibre

In optical diffraction, when X-rays are scattered from regular, repetitive lattice, pattern obtained is

Narrow angle diffraction gives information about the

Narrow angle diffraction gives information about longer spacing of order of

Complicated patterns in diffraction helps in retrieving information about

Example of electromagnetic wave is

For obtaining information about fine fibers, waves used are

Increased power of synchrotron radiation reduces

Limit of resolution is order of magnitude of

A diffraction grating of normally spaced lines, illuminated by parallel lines will give set of fringes with maxima of

For preferred orientation of crystals, pattern is

Angles subtended by arcs helps in calculation of fibre's

Photograph of glass shows

Restriction of angles reduces diffraction pattern from circles to

Information received from scattered light when passed through photographic slide can be converted into a picture on screen using

Wide angle diffraction gives information about the

Broadening of spots into arcs shows a decrease in degree of

Restriction on angles at which crystals lie has reduced the

Material that shows double pattern with spacing characteristics of bother natural and regenerated cellulose is

If position of large number of spots is known, then accurate determination is possible for

When light is passed through a photgraphic slide, it is scattered in

If light is diffracted through a fibre that is gold plated, pattern formed will be

Increase in distance from middle of arc decreases arc's

Broadening of spots into arcs refers to

Layers of atoms producing particular reflection will make a

After annealing of polyester fibre, spots become

Particular reflection occurs when layer of atoms make required angle with X-ray beam like orientation of crystals around

Diffraction patterns obtained from objects with regular repetitive structure are

A faint ring formed in delustred viscose is due to reflection from

Very useful information can be obtained from reflections occurring at

X-ray beam passing through powdered crystals is called a

Optical diffraction including optical microscopy, even by using ultraviolet radiation will give information only on

First diffraction pattern considered should be when there is

Analysis of diffraction for a three dimensional plane is

Single halo shows characteristics of

Patterns are always different for crystals having different

X-ray diffraction can also be used for

In delustred viscose rayon, outside main pattern there is a