8/12/2019 e.mech 2 marks
1/2
KARPAGA VINAYAGA COLLEGE OF ENGINEERING AND TECHNOLOGYDEPARTMENT
OF AUTOMOBILE ENGINEERING
GE-6253 ENGINEERING MECHANICSTWO MARKS QUESTION BANK UNIT-I (
BASICS & STATICS OF PART IC LES )
1. State principle of Transmissibility of forces.2. Explain
parallelogram law.3. State Lami's theorem.4. Two forces of magnitu
e !" #$ an %" #$ are acting on a particle& such that the angle
between
the two is 13! . (f both the force are acting away from the
particle& calculate the resultant anfin its irection.
!. ) force of magnitu e !" #$ is acting along the line *oining )
+2& "& ,- an +3&/2& "-. 0rite theector form of the
force.
,. efine #inematics an #inetics.. e ne the following terms5 +a-
6oplanar forces +b- 6oncurrent forces.%. State the necessary an su
ffi cient con itions for static e7uilibrium of a particle in
two
imensions.8. ifferentiate between 9:esultant; an
9E7uilibrant;1". ) 1""$ force acts at the origin in a irection
efine by the angles
8/12/2019 e.mech 2 marks
2/2
1". 0rite own the expression for fin ing mass moment of inertia
of a cylin er of ra ius 9:; an
height 9h; about its base.
UNIT-IV (DYNAMICS OF P A R TI C LE S)
1. efine ;)lembert;s principle2. 0rite own the e7uations of
motion of a particle un er gra itation3. ) car accelerates
uniformly from a spe of 3" #mGHr to a spee of ! #mGHr in ! sec.
etermine the acceleration of the car an the istance tra ele by
the car uring ! sec.4. Explain ynamic e7uilibrium!. State the law
of conser ation of momentum,. ) car starts from rest with a
constant acceleration of 4mGsec2. etermine the istance tra ele
in
the th secon .. ) point I mo es along a straight line accor ing
to the e7uation x= 4t3J2tJ!& where x is in
meters an t is in sec. etermine the elocity an acceleration at
t=3 sec.%. ) stone is pro*ecte in space at an angle of 4! to
hori>ontal at an initial elocity of 1" mGsec.
Bin the range of the pro*ectile.8. 0hat is worC energy
principleA1". 0rite the impulse momentum e7uation.
UNIT-V (FRICTION AND ELEMENTS OF RIGID BODYD Y N A M IC S)
1. ) 6ar tra erses half of a istance with a elocity of 4" #mph
an the remaining half of
istance with a elocity of ," #mph. Bin the a erage elocity.2.
efine friction an classify its types.3. efine Limiting friction.4.
efine coefficient of static friction.!. State coulomb;s laws of ry
friction.,. efine rolling resistance.. 0hat is general plane
motionA Ki e some examples.
%. efine impen ing motion.8. State the principle of worC an
energy in a rigi bo y.1". (f x=3.!t3 t2& etermine
acceleration& elocity an position of the particle& when t
=
! sec.
