Which of the following is the example of lever of first order________________?

Related Mcqs:

1. A pair of smith’s tongs is an example of the lever of__________________?

   A. zeioth order
   B. first order
   C. second order
   D. third order
   E. fourth order

2. In the lever of third order, load W, effort P and fulcrum F are oriented as follows_________________?

   A. W between P and F
   B. F between W and P
   C. P between W and F
   D. W, P and F all on one side
   E. none of the above

3. Which of the following is not the unit of distance ?

   A. angstrom
   B. light year
   C. micron
   D. millimeter
   E. milestone

4. When trying to turn a key into a lock, following is applied___________________?

   A. coplanar force
   B. non-coplanar forces
   C. lever
   D. moment
   E. couple

5. Which of the following is not a vector quantity_______________?

   A. weight
   B. velocity
   C. acceleration
   D. force
   E. moment

6. The C.G. of a right circular solid cone of height h lies at the following distance from the base_____________?

   A. h/2
   B. J/3
   C. h/6
   D. h/4
   E. 3/i/5

7. The resultant of the following three couples 20 kg force, 0.5 m arm, $ ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be_________________?

   A. 20 kg, – ve sense
   B. 20 kg, + ve sense
   C. 10 kg, + ve sense
   D. 10 kg, – ve sense
   E. 45 kg, + ve sense

8. In the equation of virtual work, following force is neglected_______________?

   A. reaction of any smooth surface with which the body is in contact
   B. reaction of a rough surface of a body which rolls on it without slipping
   C. reaction at a point or an axis, fixed in space, around which a body is con-strained to turn
   D. all of the above
   E. none of the above

9. Pick up the incorrect statement from the following _______________?

   A. The C.G. of a circle is at its center
   B. The C.G. of a triangle is at the intersection of its medians
   C. The C.G. of a rectangle is at the inter-section of its diagonals
   D. The C.G. of a semicircle is at a distance of r/2 from the center
   E. The C-G. of an ellipse is at its center

10. Which of the following is not a scalar quantity__________________?

    A. time
    B. mass
    C. volume
    D. density
    E. acceleration