Engineering Machine - Engineering Machine objective questions and answers

41. Forces are called coplanar when all of them acting on body lie in.......

   A.one point

   B.one plane

   C.different planes

   D.perpendicular planes

   E.different points

42. A force acting on a body may.......

   A.introduce internal stresses

   B.balance the other forces acting on it

   C.retard its motion

   D.change its motion

   E.all of the above

43. Which of the following do not have identical dimensions ?.........

   A.Momentum and impulse

   B.Torque and enegry

   C.torque and work

   D.kinetic energy and potential energy

   E.all of the above

44. Which of the following is not the unit of work, enegry and heat ?......

   A.kcal

   B.kg m

   C.kw hr

   D.hp

   E.hp hr

45. The unit of power in S.I. units is.......

   A.newton

   B.pascal

   C.kilogram metre

   D.watt

   E.joule

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