Theory of Machines MCQ with Answers

166) If ?/?_n is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

Answer is:

0 Degree

167) A system in dynamic balance implies that

Answer is:

the system is also statically balanced

168) The example of completely constrained motion is a

Answer is:

all of the above

Explanation:

When the motion between a pair is limited to a definite direction irrespective of the direction of force applied, then the motion is said to be a completely constrained motion.

The example of completely constrained motion is a

169) In involute gears, the pressure angle is

Answer is:

always constant

170) A shaft carrying three rotors will have

Answer is:

166) If ?/?n is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

0 Degree

167) A system in dynamic balance implies that

the system is also statically balanced

168) The example of completely constrained motion is a

all of the above

169) In involute gears, the pressure angle is

always constant

170) A shaft carrying three rotors will have

two nodes

166) If ?/?_n is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach