| If the diameter of a circular section is doubled, its Radius of Gyration |
A) is reduced to half
B) remains the same
C) is doubled
D) is increased by 4 times
| A triangular section with horizontal base would give maximum Second Moment of Area about the horizontal axis passing from |
A) base of triangle
B) apex of triangle
C) centroid of triangle
D) mid-height of triangle
| A force equal to product of mass times acceleration and acting in direction opposite to acceleration is called |
A) Damping
B) Friction
C) Inertia force
D) Equilibrant force
| If the Second Moment of Area of a square section (having horizontal base) about its vertical centroidal axis is denoted by MI1, and the Second Moment of Area of the same square section about the axis passing from its diagonal is denoted by MI2, then which of the following is correct? |
A) MI1 = MI2
B) MI1 > MI2
C) MI1 < MI2
D) The relation depends upon the dimension of the square
| If the gravitational acceleration at a place is doubled, then the weight of a body will |
A) remain unchanged
B) increase
C) decrease
D) become zero
| The moment of inertia of an area is always least with respect to |
A) Vertical axis
B) Bottom most axis
C) Radius of gyration
D) Central axis
| The square root of the ratio of moment of inertia of cross section to its cross sectional area is called |
A) Second moment of area
B) Section modulus
C) Radius of gyration
D) Slenderness ratio
| The moment of inertia of a rectangular section about the base is |
A) twice the moment of inertia about the centroidal axis
B) three times the moment of inertia about the centroidal axis
C) four times the moment of inertia about the centroidal axis
D) six times the moment of inertia about the centroidal axis
| The Centre of Gravity of a plane lamina will not be at its geometrical center in case of a |
A) Equilateral triangle
B) Right angled triangle
C) Square
D) Circle
| Moment of Inertia is the |
A) Second moment of mass
B) Second moment of force
C) Second moment of area
D) All of above
