Below are the answers key for the Multiple Choice Questions in Engineering Mechanics Part 4.

151. water

152. either of the above

153. equilibrant

154. 18 N at 246°

155. all of the above are correct

156. lie somewhere along the line symmetry

157. all of the above

158. B or C

159. all of the above

160. 2/5 mr2

161. 2/3 mr2

162. second moment of area

163. polar moment of area

164. Archimedes’ Principle

165. buoyancy

166. 7 N

167. tends to rise

168. acceleration

169. A or B

170. elastic collisions

171. 1 N-s** **

172. 10 N-s

173. impulse.

174. radians per second

175. mass moment of inertia x angular velocity

176. torque

177. Heisenberg uncertainty principle

178. m4

179. statically indeterminate

180. Torricelli’s equation

181. Vf 2 = Vi 2 + 2as

182. It is directed toward the center of the circular path.

183. changes the direction of the velocity.

184. changes the magnitude of the velocity.

185. Gforce

186. 1.211 x 1044 N

187. m3 kg-1 s-2

188. 1.02 x 10-67 N

189. 4 x 1014 m3 s-2

190. 1.6 m/s2

191. either of the above

192. none of the above

193. coefficient of rolling friction

194. 0.0002 – 0.0010

195. 0.01 – 0.015

196. mechanical advantage

197. classical mechanics

198. 110 N

199. 18

200. 8.67

### Online Questions and Answers in Engineering Mechanics Series

Following is the list of practice exam test questions in this brand new series:

**Engineering Mechanics MCQs**

**MCQs from Number 1 – 50**Answer key:

**PART I**

**MCQs from Number 51 – 100**Answer key:

**PART II**

**MCQs from Number 101 – 150**Answer key:

**PART III**

**MCQs from Number 151 – 200**Answer key:

**PART IV**

**MCQs from Number 201 – 250**Answer key:

**PART V**

**MCQs from Number 251 – 300**Answer key:

**PART VI**

**MCQs from Number 301 – 350**Answer key:

**PART VII**

**MCQs from Number 351 – 400**Answer key:

**PART VIII**