3.2
- 101. Define power.
- 102. What is the law of conservation of energy?
- 103. What is the principle of virtual work?
- 104. State the work-energy principle.
- 105. Define strain energy.
- 106. What is potential energy?
- 107. What is kinetic energy?
- 108. Define energy.
- 109. Define work.
- 110. What is the difference between elastic and plastic deformation?
- 111. What is modulus of rigidity?
- 112. What is bulk modulus?
- 113. Define Poisson’s ratio.
- 114. Define shear stress and shear strain.
- 115. What is Young’s modulus?
- 116. Define Hooke’s law.
- 117. What are the units of stress and strain?
- 118. Define strain.
- 119. Define stress.
- 120. What is the point of contraflexure?
- 121. Draw typical S.F. and B.M. diagrams for a cantilever with UDL
- 122. State the relationship between load, shear force, and bending moment.
- 123. What is shear force?
- 124. What is a bending moment?
- 125. What are point load and uniformly distributed load (UDL)?
- 126. Define cantilever beam.
- 127. Define simply supported beam.
- 128. What are the types of beams?
- 129. Define a beam.
- 130. Differentiate between frame and truss.
- 131. What is a space truss?
- 132. What is a plane truss?
- 133. What are zero-force members in a truss?
- 134. Explain method of sections.
- 135. Explain method of joints.
- 136. State the condition for a perfect truss.
- 137. Define perfect, deficient, and redundant trusses.
- 138. What are the assumptions made in truss analysis?
- 139. What is a truss?
- 140. Explain mass moment of inertia.
- 141. What are the units of M.I.?
- 142. Define polar moment of inertia.
- 143. Find M.I. of a circle about its diameter.
- 144. Find M.I. of a rectangle about its centroidal axis.
- 145. What is the radius of gyration?
- 146. State the perpendicular axis theorem.
- 147. State the parallel axis theorem.
- 148. What is the physical significance of M.I.?
- 149. Define moment of inertia (M.I.).
- 150. Explain the centroid of a solid body.
- 151. What is the centroid of a composite section?
- 152. What is the first moment of area?
- 153. Define the moment of area.
- 154. What is the centroid of a semicircle?
- 155. What is the centroid of a triangle?
- 156. What are the methods to find the centroid?
- 157. What is the difference between centroid and C.G.?
- 158. Define center of gravity.
- 159. Define centroid.
- 160. How can friction be reduced in machines?
- 161. What are the advantages and disadvantages of friction?
- 162. What is rolling friction?
- 163. Explain limiting friction.
- 164. State laws of dry friction.
- 165. Define angle of repose.
- 166. What is the angle of friction?
- 167. What is the coefficient of friction?
- 168. Define static and kinetic friction.
- 169. What is friction?
- 170. Define a two-force and a three-force body.
- 171. What is meant by constrained and unconstrained bodies?
- 172. What is a support reaction?
- 173. Explain stable, unstable, and neutral equilibrium.
- 174. What are the different types of equilibrium?
- 175. State and explain the principle of equilibrium.
- 176. What are equilibrium equations for a planar system?
- 177. How do you construct an FBD?
- 178. Define a free-body diagram (FBD).
- 179. What are the conditions for equilibrium?
- 180. Explain torque and its units.
- 181. What is the moment of a couple?
- 182. What is a couple?
- 183. Define the principle of moments.
- 184. State Varignon’s theorem of moments.
- 185. What is the moment of a force?
- 186. What is a coplanar force system?
- 187. Explain the polygon law of forces.
- 188. How is the resultant of two forces determined graphically?
- 189. Define the resultant of a force system.
- 190. What is concurrent and non-concurrent force systems?
- 191. What is Lami’s theorem?
- 192. What is the triangle law of forces?
- 193. Explain the parallelogram law of forces.
- 194. What is the principle of transmissibility of forces?
- 195. What are the fundamental laws of mechanics?
- 196. Define scalar and vector quantities with examples.
- 197. Differentiate between kinematics and kinetics.
- 198. Define statics and dynamics.
- 199. What is Engineering Mechanics?