For a perfect frame having 13 members the number of joints must be
A.6
B.7
C.8
D.9
Category: Applied Mechanics Mcqs
Two identical weights are dropped simultaneously, one on water and the other in glycerine. Which of the following statement is correct?
A.The weight will settle quickly in water but slowly in glycerine
B.The weight will settle slowly in water but quickly in glycerine
C.The weights will take same time to settle
D.The water level will fall but glycerine level will rise
The tension T1 will be
A.5 N
B.10 N
C.20 N
D.60 N
A apinning ballet dancer draws her arms close to her chest. She will now
A.spin slower
B.spin faster
C.spin at the same rate
D.stop spinning
The statement — if forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order then their resultant will be represented in magnitude and direction by the closing side of the polygon taken in opposite order —- is known as
A.Lami’s theorem
B.Newton’s law of forces
C.D’Alembert’s rule
D.Law of triangle of forces
E.Law of polygon of forces
