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WorksheetsTLA 2.1 Engineering Mechanics
Total questions: 10
Worksheet time: 3mins
A physical quantity that is completely described by a real number is called
scalar
vector
tensor
none
A system of forces is __________ if the lines of action of the forces intersect at a point.
parallel
coplanar
concurrent
two-dimensional
The moment of a force about a point P is equal to the sum of the moments of its components about P.
Cavalieri’s Theorem
Pascal’s Theorem
Varignon’s Theorem
Torricelli’s Theorem
It is the measure of the tendency of a force to cause rotation about a line or axis.
moment
momentum
impulse
torsion
If an object is on an inclined plane having an angle θ, the component of weight (w) parallel to incline is __________.
w sinθ
w cosθ
w tanθ
w cotθ
“Observed from an internal reference frame, the net force on a particle is proportional to the time rate of change of its linear momentum”. This is known as Newton’s ___________ of motion.
Zeroth Law
First Law
Second Law
Third Law
If an area has one line of symmetry the centroid will
lie somewhere along the line symmetry
lie anywhere on the area
lie in the midpoint of the line of symmetry
not lie on the line of symmetry
The equilibrant of the forces 10 N at 10° and 15 N at 100° is
18 N at 246°
18 N at 66°
25 N at -114°
25 N at 66°
The mass moment of inertia of a solid sphere about its diameter is
1/5 mr2
2/5 mr2
3/5 mr2
4/5 mr2
The mass moment of inertia of a thin spherical shell about its diameter is
1/6 mr2
1/3 mr2
1/2 mr2
2/3 mr^2
