Svvv- Svits 1st Year Ee Quiz - Applied Mechanics (Btce 103)

50 Questions | Total Attempts: 89

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Svvv- Svits 1st Year Ee  Quiz - Applied Mechanics (Btce 103)

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Questions and Answers
  • 1. 
    The unit of force in S.I. units is
    • A. 

      Kilogram

    • B. 

      Newton

    • C. 

      Watt

    • D. 

      Dyne

    • E. 

      Joule.

  • 2. 
    Which of the following is not the unit of power ?
    • A. 

      KW (kilowatt)

    • B. 

      Hp (horse power)

    • C. 

      Kcal/sec

    • D. 

      Kcal/kg sec

  • 3. 
    Which of the following is not a scalar quantity.?
    • A. 

      Time

    • B. 

      Mass

    • C. 

      Acceleration

    • D. 

      Volume

    • E. 

      Density

  • 4. 
    Which of the following is a vector quantity.?
    • A. 

      Energy

    • B. 

      Momentum

    • C. 

      Angle

    • D. 

      Speed

  • 5. 
    The C.G. of a plane lamina will not be at its geometrical centre in the case of a
    • A. 

      Right angled triangle

    • B. 

      Circle

    • C. 

      Square

    • D. 

      Rectangle

  • 6. 
    The algebraic sum of moments of the forces forming couple about any point in their plane is
    • A. 

      Equal to the moment of the couple

    • B. 

      Constant

    • C. 

      Both of above are correct

    • D. 

      Both of above are wrong

  • 7. 
    The locus of the instantaneous centre of a moving rigid body, is
    • A. 

      Straight line

    • B. 

      Involute

    • C. 

      Centroid

    • D. 

      Spiral

  • 8. 
    The forces which meet at one point and have their lines of action in different planes are called
    • A. 

      Coplaner non-concurrent forces

    • B. 

      Non-coplaner concurrent forces

    • C. 

      Non-coplaner non-current forces

    • D. 

      Intersecting forces

  • 9. 
    The unit of Moment of Inertia of a body, is
    • A. 

      M

    • B. 

      M2

    • C. 

      M3

    • D. 

      M4

  • 10. 
    The Law of Polygon of Forces states that
    • A. 

      If a polygen representing the forces acting at point in a body is closed, the forces are in equilibrium

    • B. 

      If forces acting on a point can be represented in magnitde and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by the closing side of the polygon

    • C. 

      If forces acting on a point can be represented of a polygon taken in order, their sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side of the polygon, taken in opposite order

    • D. 

      If forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium.

  • 11. 
    Work may be defined as
    • A. 

      Force x distance

    • B. 

      Force x velocity

    • C. 

      Force x acceleration

    • D. 

      None of these.

  • 12. 
    Lami's theroem states that
    • A. 

      Three forces acting at a point are always in equilibrium

    • B. 

      If three forces acting on a point can be represented in magnitude and direction by the sides of a triangle, the point will be in the state of equilibrium

    • C. 

      Three coplaner forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two

    • D. 

      Three coplaner forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two

  • 13. 
    If two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along
    • A. 

      The same line in the same sense

    • B. 

      The same line in opposite sense

    • C. 

      The perpendicular to both the lines

    • D. 

      None of these.

  • 14. 
    The characteristic of a couple, is
    • A. 

      Algebraic sum of forces, constituting a couple is zero

    • B. 

      Algebraic sum of moments of forces, constituting a couple, about any poin, is same

    • C. 

      A couple can be balanced only by a couple but of opposite sense

    • D. 

      A couple can be never the balanced by a single force

    • E. 

      All the above.

  • 15. 
    Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and
    • A. 

      Concurrent

    • B. 

      Parallel

    • C. 

      Concurrent parallel

    • D. 

      None of these

  • 16. 
    Newtons's Law of Motion is
    • A. 

      Every body continues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force

    • B. 

      The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts

    • C. 

      To every action, there is always an equal and opposite reaction

    • D. 

      All the above

  • 17. 
    Pick up the incorrect statement from the following :
    • A. 

      The C.G. of a circle is at its centre

    • B. 

      The C.G. of a triangle is at the intersecton of its medians

    • C. 

      The C.G. of a rectangle is at the intersection of its diagonals

    • D. 

      The C.G. of a semicircle is at a distance of r/2 from the centre

  • 18. 
    Energy may be defined as
    • A. 

      Power of doing work

    • B. 

      Capacity of doing work

    • C. 

      Rate of doing work

    • D. 

      All the above

  • 19. 
    The centre of gravity of a homogenous body is the point at which the whole
    • A. 

      Volume of the body is assumed to be concentrated

    • B. 

      Area of the surface of the body is assumed to be concentrated

    • C. 

      Weight of the body is assumed to be concentrated

    • D. 

      All the above.

  • 20. 
    Centre of gravity of a thin hollow cone lies on the axis of symmmetry at a height of
    • A. 

      One-half of the total height above base

    • B. 

      One-third of the total height above base

    • C. 

      One-fourth of the total height above base

    • D. 

      None of these.

  • 21. 
    The unit of moments in M.K.S system, is
    • A. 

      Kg-m

    • B. 

      Kg/m2

    • C. 

      Kg/sec2

    • D. 

      Kg/sec

  • 22. 
    A point subjected to a number of forces will be in equilibrium, if
    • A. 

      Sum of resolved parts in any two directions at right angles, are both zero

    • B. 

      Algebraic sum of the forces is zero

    • C. 

      Two resolved parts in any two directions at right angles are equal

    • D. 

      Algebraic sum of the moments of the forces about the point is zero

  • 23. 
    If the shear force along a section of a beam is zero, the bending moment at the section is
    • A. 

      Zero

    • B. 

      Maximum

    • C. 

      Minimum

    • D. 

      Average of maximum-minimum

  • 24. 
    The shape of the bending moment diagram over the length of a beam, carrying a uniformly distributed load is always
    • A. 

      Linear

    • B. 

      Parabolic

    • C. 

      Cubical

    • D. 

      Circular

  • 25. 
    For a simply supported beam with a central load, the bending moment is
    • A. 

      Least at the centre

    • B. 

      Least at the supports

    • C. 

      Maximum at the supports

    • D. 

      Maximum at the centre

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