Applied Mechanics and Graphic Statics Interview Questions and Answers

61.    A quantity whose dimensions are M2L2 T3 could be the product of
a)    force and pressure
b)    mass and power
c)    energy and velocity
d)    force and velocity
Ans: b

62.    The dimensions of Gravitational Universal constant 'G' are
a)    M-'L2r2
b)    M-'L3r2
c)    M-2L3T2
d)    M'L3T2
Ans: b

63.    Williot-Mohr diagram is used to determine deflection in
a)    trusses only
b)    beam only
c)    rigid frames only
d)    any type of structure
Ans: a

64.    One Joule is equivalent to
a)    9.81 Newton - metre
b)    1 Newton - metre
c)    1 kg wt - metre
d)    1 dyne - metre
Ans: b

65.    The dimensions of centrifugal force are
a)    M1 L2 T2
b)    M'L'T1
c)    M'L'T2
d)    M'L-'T2
Ans: c

66.    A quantity measured in the C.G.S system of units has dimensions M"2L3 T3/2. What numerical factor would be required to convert the quantity to SI units ?
a)    1
b)    100
c)    1/100
d)    1/10000
Ans: a

67.    The unit of rotational inertia of a body in C.G.S system is
a)    cm4
b)    kg-cm2
c)    gm-cm2
d)    gm-cm3
Ans: c

68.    The ratio of unit of force in gravitational system to that in absolute system is
a)    1
b)    g
c)    1/g
d)    none of the above
where 'g' is acceleration due to gravity
Ans: b

69.    In SI units, the units of force and energy are respectively
a)    Newton and watt
b)    Dyne and erg
c)    Newton and joule
d)    kg-wt and joule
Ans: c

70.    The dimensions of power are.
a)    M'L2T2
b)    M'L'T3
c)    M'L'r2
d)    M'L-'T*
Ans: b