Mechanical Engineering Mcqs

In reaction turbine, draft tube is used_____________________?
  • (A)  to transport water downstream without eddies
  • (B)  to convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section
  • (C)  for safety of turbine
  • (D)  to increase flow rate
  • (E)  none of the above
Isotopes of same elements have___________________?
  • (A)  same atomic number and different masses
  • (B)  same chemical properties but different atomic numbers
  • (C)  different masses and different atomic numbers
  • (D)  different chemical properties and same atomic numbers
  • (E)  same chemical properties and same atomic numbers