Structural Engineering I MCQ with Answers

Structural Engineering I MCQ with Answers

1) A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is

Answer is:

120 N

Explanation:

.

2) If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is

Answer is:

120°

3) A rod AB carries three loads of 30 N, 70 N and 100 N at distances of 20 mm, 90 mm and 150 mm respectively from A. Neglecting the weight of the rod, the point at which the rod will balance is

Answer is:

109.5 mm from A

4) The angles between two forces to make their resultant a minimum and a maximum respectively are

Answer is:

180° and 0°

5) When two forces, each equal to P, act at 90° to each other, then the resultant will be

Answer is:

PV²