Top 150+ Solved Design of Machine Elements MCQ Questions Answer
Q. The maximum fluctuation of speed is the
a. difference of minimum fluctuation of speed and the mean speed
b. difference of the maximum and minimum speeds
c. sum of the maximum and minimum speeds
d. variations of speed above and below the mean resisting torque line
Q. In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called
a. fluctuation of energy
b. maximum fluctuation of energy
c. coefficient of fluctuation of energy
d. none of the mentioned
Q. The ratio of the maximum fluctuation of energy to the ……. is called coefficient of fluctuation of energy.
a. minimum fluctuation of energy
b. workdone per cycle
c. maximum fluctuation of energy
d. none of the mentioned
Q. Straight bevel gears are easy to design and manufacture and give reasonably good service with quieter operation.
a. true
b. no, noise problem
c. no, vibration problem
d. none of the listed
Q. Which of the following creates smoother motion?
a. straight bevel gears
b. spiral bevel gears
c. equal for straight and spiral
d. none of the mentioned
Q. Which of the following are characteristics of skew bevel gears?
a. straight teeth
b. mounted on parallel shafts
c. mounted on intersecting shafts
d. all of the mentioned
Q. When two hyperboloids are rotated, the resulting motion is
a. sliding
b. turning
c. combination of turning and sliding
d. rotary
Q. Zerol gears give lesser contact ratio.
a. true
b. no, larger contact ratio
c. zero contact
d. none of the listed
Q. Hydrodynamic lubrication takes place in region?
a. bc
b. cd
c. both bc and cd
d. none of the mentioned