Questions
- 22101. What is a mechanism inversion?
- 22102. Define Grashof’s law.
- 22103. What are the inversions of a four-bar chain?
- 22104. What is a four-bar chain?
- 22105. Give examples of sliding pair and turning pair.
- 22106. What are higher pairs?
- 22107. What are lower pairs?
- 22108. Define constrained motion.
- 22109. What is a link?
- 22110. What is a kinematic chain?
- 22111. What is a kinematic pair?
- 22112. What is dynamics of machines?
- 22113. Define kinetics.
- 22114. Define kinematics.
- 22115. Differentiate between machine and mechanism.
- 22116. What is a mechanism?
- 22117. What is a machine?
- 22118. What are the basic properties of fluids?
- 22119. Differentiate between solid, liquid, and gas.
- 22120. Define fluid.
- 22121. What is fluid mechanics?
- 22122. What is the role of SOM in failure analysis of electrical equipment?
- 22123. Why is SOM important in transformer and motor design?
- 22124. How do you increase beam stiffness?
- 22125. What is the function of fillets and notches in design?
- 22126. What is the importance of section modulus?
- 22127. What is the significance of moment of inertia in design?
- 22128. How does SOM apply to electrical machines?
- 22129. What is limit state design?
- 22130. What is allowable stress design?
- 22131. Define factor of safety.
- 22132. What is thermal shock?
- 22133. What is stress relaxation?
- 22134. How does temperature affect material strength?
- 22135. What are thermal strains?
- 22136. How can residual stresses be relieved?
- 22137. What causes residual stresses?
- 22138. What are residual stresses?
- 22139. What is stress due to temperature change?
- 22140. What is temperature gradient?
- 22141. What are thermal stresses?
- 22142. What is fracture toughness?
- 22143. Define ductile fracture.
- 22144. Define brittle fracture.
- 22145. What is fracture?
- 22146. What is S–N curve?
- 22147. Define endurance limit.
- 22148. What are the stages of fatigue failure?
- 22149. Define fatigue.
- 22150. What are the stages of creep?
- 22151. Define creep.
- 22152. What is bursting pressure?
- 22153. What is shrink fit?
- 22154. What is compound cylinder?
- 22155. Define thick cylinder equation (Lame’s theorem).
- 22156. What is volumetric strain in thin cylinders?
- 22157. What is longitudinal stress?
- 22158. What is hoop stress?
- 22159. Derive hoop and longitudinal stresses in thin cylinder.
- 22160. Define thick cylinder.
- 22161. Define thin cylinder.
- 22162. What happens when load passes outside the core?
- 22163. What is eccentricity?
- 22164. Define resultant stress.
- 22165. What is middle third rule?
- 22166. What is core of a section?
- 22167. What is combined direct and bending stress?
- 22168. What is combined bending and torsion?
- 22169. What is bending stress due to eccentric load?
- 22170. What is eccentric loading?
- 22171. Define combined stress.
- 22172. What is Maxwell’s reciprocal theorem?
- 22173. What is complementary energy?
- 22174. Define Castigliano’s theorem.
- 22175. What is strain energy due to torsion?
- 22176. What is strain energy due to bending?
- 22177. What is strain energy due to shear?
- 22178. Define modulus of resilience.
- 22179. Define proof resilience.
- 22180. Define resilience.
- 22181. Define strain energy.
- 22182. What is safety factor in failure analysis ?
- 22183. What is yield criterion?
- 22184. Which theory is used for brittle materials?
- 22185. Which theory is most accurate for ductile materials?
- 22186. What is distortion energy theory (von Mises)?
- 22187. What is maximum shear stress theory (Tresca)?
- 22188. What is maximum strain theory (Saint-Venant)?
- 22189. What is maximum stress theory (Rankine’s)?
- 22190. List the different theories of failure.
- 22191. What is failure of material?
- 22192. Define maximum normal stress theory.
- 22193. Define maximum principal strain theory.
- 22194. Define distortion energy theory.
- 22195. Define maximum shear strain energy theory.
- 22196. What are major and minor principal stresses?
- 22197. What is Mohr’s circle?
- 22198. Derive expressions for principal stresses in 2D stress system.
- 22199. What is maximum shear stress?
- 22200. Define principal planes.