61. 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 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
62. Which of the following is not the unit of distance? A. Angstrom B. Light year C. Millimeter D. Milestone Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
63. Which of the following is not the unit of pressure? A. Kg/cm B. Atmosphere C. Mm of wcl D. Newton Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
64. Forces are called concurrent when their lines of action meet in A. One point B. Two points C. Plane D. Perpendicular planes Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
65. From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate A. 0.5 cm B. 1.0 cm C. 1.5 cm D. 2.5 cm Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
66. A framed structure is perfect if it contains members equal to (where n = number of joints in a frame) A. 2n - 3 B. n - 1 C. 2n - 1 D. n - 2 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
67. 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 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
68. The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is A. Same B. Double C. Half D. Four times Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
69. Two non-collinear parallel equal forces acting in opposite direction A. Balance each other B. Constitute a moment C. Constitute a couple D. Constitute a moment of couple Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
70. Which of the following is the example of lever of first order? A. Arm of man B. Pair of scissors C. Pair of clinical tongs D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board