Q. When two rotor system rotate in same direction then they vibrate with A. Natural frequency B. Damped Natural frequency C. Circular frequency D. Zero frequency Answer & Explaination Discuss Answer : Option:- D Explanation : Discuss here! No Explaination Available for These Question.
Q. In case of a harmonically excited single DOF system, the magnification factor at zero frequency is A. 0 B. 1 C. 2 D. Infinity Answer & Explaination Discuss Answer : Option:- B Explanation : Discuss here! No Explaination Available for These Question.
Q. Which of the following is noise ? A. Bird chirping B. Crying baby C. Music D. Waterfall Answer & Explaination Discuss Answer : Option:- B Explanation : Except Crying baby all sounds are pleasant.
Q. In signal conversion unit, signal is A. Amplified B. Stored C. Transmitted D. Rejected Answer & Explaination Discuss Answer : Option:- A Explanation : Discuss here! No Explaination Available for These Question.
Q. Fluid resistance causes damping which is known as ______ A. Resistance damping B. Fluid damping C. Viscous damping D. Liquid damping Answer & Explaination Discuss Answer : Option:- C Explanation : Discuss here! No Explaination Available for These Question.
Q. What is not the effect of unbalanced forces? A. Load on bearings B. Dangerous vibrations C. Stresses in various members D. Violation of conservation of mass principle Answer & Explaination Discuss Answer : Option:- D Explanation : Discuss here! No Explaination Available for These Question.
Q. Vibration measurement is useful for A. operational speed B. avoid resonance C. design isolation D. all of the above Answer & Explaination Discuss Answer : Option:- D Explanation : Discuss here! No Explaination Available for These Question.
Q. One of the methods of vibration control is, preventing excessive response of the system, even at resonance, by ______ or energy-dissipating mechanism. A. Introducing a damping B. Use of vibration isolator C. addition of vibration absorber D. avoiding resonance Answer & Explaination Discuss Answer : Option:- A Explanation : Discuss here! No Explaination Available for These Question.
Q. Firing order in a six stroke IC Engine is A. 1-3-6-5-2-4 B. 1-4-2-5-6-3 C. 1-5-2-6-3-4 D. 1-5-3-4-2-6 Answer & Explaination Discuss Answer : Option:- D Explanation : Discuss here! No Explaination Available for These Question.
Q. Mechanical type of frequency measuring instruments are A. Velocity based B. Inertia based C. resonance based D. accelaration based Answer & Explaination Discuss Answer : Option:- C Explanation : Discuss here! No Explaination Available for These Question.