MACHINEDESI
GNPRACTICEQUESTI
ONSAND
ANSWERSFORTESTPREPARATI
ON
1.Whati
smachi
nedesi
gn?
Answer:
Machi
nedesignist
heprocessofcr
eat
ingmachi
nesandmechani
cal
syst
emst
hatcan
per
for
m speci
fi
cfuncti
onsort
asks.
2.Whatar
ethebasi
cpr
inci
plesofmachi
nedesi
gn?
Answer:
Thebasicpr
inci
plesofmachi
nedesignincl
udeunder
standi
ngtherequi
rement
soft
he
machi
ne,sel
ecti
ngtheappropri
atemat
eri
als,anddesi
gni
ngthemachineforopt
imal
per
for
manceandr el
iabi
l
ity.
3.Whatar
ethedi
ff
erentt
ypesofl
oadsi
nmachi
nedesi
gn?
Answer:
Thedi
ffer
entt
ypesofl
oadsi
nmachi
nedesi
gni
ncl
udet
ensi
l
e,compr
essi
ve,
bendi
ng,
t
orsi
onal,
andshearl
oads.
4.Whatar
ethedi
ff
erentt
ypesofmat
eri
alsusedi
nmachi
nedesi
gn?
Answer:
Thedif
fer
entt
ypesofmat
eri
alsusedi
nmachi
nedesi
gni
ncl
udemet
als,
pol
ymer
s,
composi
tes,
andceramics.
5.Whati
sst
ressi
nmachi
nedesi
gn?
Answer
:St
ressisthef
orceappl
i
edperuni
tar
eaofamat
eri
alandi
sani
mpor
tantf
act
ori
n
machi
nedesign.
6.Whati
sst
rai
ninmachi
nedesi
gn?
Answer
:St
rai
nist
hedef
ormat
ionofamat
eri
alduet
ost
ressandi
sani
mpor
tantf
act
ori
n
machi
nedesi
gn.
, 7.Whati
sfat
iguei
nmachi
nedesi
gn?
Answer:
Fat
igueistheweakeni
ngofamat
eri
alov
ert
imeduet
ocy
cli
cloadi
ngandi
san
i
mportantf
actori
nmachinedesign.
8.Whati
sthei
mpor
tanceofsaf
etyi
nmachi
nedesi
gn?
Answer:
Saf
etyi
sofutmosti
mport
anceinmachi
nedesi
gnasmachi
nescanbedanger
ousi
fnot
desi
gnedpr
operl
yandcancausei
njur
yorev
endeat
h.
9.Whati
sthei
mpor
tanceofmai
ntenancei
nmachi
nedesi
gn?
Answer:
Mai
ntenancei
simport
anti
nmachinedesi
gntoensur
ethatt
hemachi
necont
inuest
o
per
for
m opt
imall
yandtoprev
entbr
eakdownsorfai
lur
es.
10.Whati
sthei
mpor
tanceofl
ubr
icat
ioni
nmachi
nedesi
gn?
Answer:
Lubr
icat
ioni
simpor
tantinmachinedesignt
or educef
ri
cti
onandwearbet
weenmov
ing
par
tsandtoensureopt
imal
performanceandlongev
ityofthemachine.
11.Whati
sthei
mpor
tanceofal
i
gnmenti
nmachi
nedesi
gn?
Answer
:Al
i
gnmentisi
mportanti
nmachi
nedesigntoensur
ethatal
lthepar
tsoft
hemachi
ne
workt
oget
herhar
moniousl
yandtopr
eventwearandtear
.
12.Whati
sthei
mpor
tanceofbal
anci
ngi
nmachi
nedesi
gn?
Answer:
Bal
anci
ngisi
mportanti
nmachi
nedesi
gntoensur
ethatt
hemachi
ner
unssmoot
hlyand
t
opreventv
ibr
ati
onst
hatcanleadt
owearandtear
.
13.Whatar
ethedi
ff
erentt
ypesofbear
ingsusedi
nmachi
nedesi
gn?
Answer:Thedif
fer
enttypesofbear
ingsusedinmachi
nedesi
gni
ncl
udebal
lbear
ings,
rol
l
er
bear
ings,pl
ainbeari
ngs,andmagneticbear
ings.
GNPRACTICEQUESTI
ONSAND
ANSWERSFORTESTPREPARATI
ON
1.Whati
smachi
nedesi
gn?
Answer:
Machi
nedesignist
heprocessofcr
eat
ingmachi
nesandmechani
cal
syst
emst
hatcan
per
for
m speci
fi
cfuncti
onsort
asks.
2.Whatar
ethebasi
cpr
inci
plesofmachi
nedesi
gn?
Answer:
Thebasicpr
inci
plesofmachi
nedesignincl
udeunder
standi
ngtherequi
rement
soft
he
machi
ne,sel
ecti
ngtheappropri
atemat
eri
als,anddesi
gni
ngthemachineforopt
imal
per
for
manceandr el
iabi
l
ity.
3.Whatar
ethedi
ff
erentt
ypesofl
oadsi
nmachi
nedesi
gn?
Answer:
Thedi
ffer
entt
ypesofl
oadsi
nmachi
nedesi
gni
ncl
udet
ensi
l
e,compr
essi
ve,
bendi
ng,
t
orsi
onal,
andshearl
oads.
4.Whatar
ethedi
ff
erentt
ypesofmat
eri
alsusedi
nmachi
nedesi
gn?
Answer:
Thedif
fer
entt
ypesofmat
eri
alsusedi
nmachi
nedesi
gni
ncl
udemet
als,
pol
ymer
s,
composi
tes,
andceramics.
5.Whati
sst
ressi
nmachi
nedesi
gn?
Answer
:St
ressisthef
orceappl
i
edperuni
tar
eaofamat
eri
alandi
sani
mpor
tantf
act
ori
n
machi
nedesign.
6.Whati
sst
rai
ninmachi
nedesi
gn?
Answer
:St
rai
nist
hedef
ormat
ionofamat
eri
alduet
ost
ressandi
sani
mpor
tantf
act
ori
n
machi
nedesi
gn.
, 7.Whati
sfat
iguei
nmachi
nedesi
gn?
Answer:
Fat
igueistheweakeni
ngofamat
eri
alov
ert
imeduet
ocy
cli
cloadi
ngandi
san
i
mportantf
actori
nmachinedesign.
8.Whati
sthei
mpor
tanceofsaf
etyi
nmachi
nedesi
gn?
Answer:
Saf
etyi
sofutmosti
mport
anceinmachi
nedesi
gnasmachi
nescanbedanger
ousi
fnot
desi
gnedpr
operl
yandcancausei
njur
yorev
endeat
h.
9.Whati
sthei
mpor
tanceofmai
ntenancei
nmachi
nedesi
gn?
Answer:
Mai
ntenancei
simport
anti
nmachinedesi
gntoensur
ethatt
hemachi
necont
inuest
o
per
for
m opt
imall
yandtoprev
entbr
eakdownsorfai
lur
es.
10.Whati
sthei
mpor
tanceofl
ubr
icat
ioni
nmachi
nedesi
gn?
Answer:
Lubr
icat
ioni
simpor
tantinmachinedesignt
or educef
ri
cti
onandwearbet
weenmov
ing
par
tsandtoensureopt
imal
performanceandlongev
ityofthemachine.
11.Whati
sthei
mpor
tanceofal
i
gnmenti
nmachi
nedesi
gn?
Answer
:Al
i
gnmentisi
mportanti
nmachi
nedesigntoensur
ethatal
lthepar
tsoft
hemachi
ne
workt
oget
herhar
moniousl
yandtopr
eventwearandtear
.
12.Whati
sthei
mpor
tanceofbal
anci
ngi
nmachi
nedesi
gn?
Answer:
Bal
anci
ngisi
mportanti
nmachi
nedesi
gntoensur
ethatt
hemachi
ner
unssmoot
hlyand
t
opreventv
ibr
ati
onst
hatcanleadt
owearandtear
.
13.Whatar
ethedi
ff
erentt
ypesofbear
ingsusedi
nmachi
nedesi
gn?
Answer:Thedif
fer
enttypesofbear
ingsusedinmachi
nedesi
gni
ncl
udebal
lbear
ings,
rol
l
er
bear
ings,pl
ainbeari
ngs,andmagneticbear
ings.
