Home / Engineering / Dynamics of Machinery MCQs / Page 8

Dynamics of Machinery MCQs | Page - 8

Dear candidates you will find MCQ questions of Dynamics of Machinery here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

M

Mr. Dubey • 51.43K Points
Coach

Q. 71) Sound power of a machine whose specified sound power level is 125 dB

(A) 3.16 w
(B) 4.2w
(C) 5w
(D) 31.6w
View Answer Discuss Share

M

Mr. Dubey • 51.43K Points
Coach

Q. 72) The process of maintaining appropriate noise level without considering economic factors is called as _____

(A) noise control
(B) noise reduction
(C) both a. and b.
(D) none of the above
View Answer Discuss Share

M

Mr. Dubey • 51.43K Points
Coach

Q. 73) Basic elements of noise control are

(A) Source ,Path ,Receiver of noise
(B) Amplitude and Frequency
(C) Time period
(D) A and B both
View Answer Discuss Share

M

Mr. Dubey • 51.43K Points
Coach

Q. 74) All sound is noise.

(A) TRUE
(B) False
(C) none
(D) none
View Answer Discuss Share

M

Mr. Dubey • 51.43K Points
Coach

Q. 75) Which type of vibrations are also known as transient vibrations?

(A) Undamped vibrations
(B) Damped vibrations
(C) Torsional vibrations
(D) Transverse vibrations
View Answer Discuss Share

M

Mr. Dubey • 51.43K Points
Coach

Q. 76) During transverse vibrations, shaft is subjected to which type of stresses?

(A) Tensile stresses
(B) Torsional shear stress
(C) Bending stresses
(D) All of the above
View Answer Discuss Share

M

Mr. Dubey • 51.43K Points
Coach

Q. 77) What are deterministic vibrations?

(A) Vibrations caused due to known exciting force
(B) Vibrations caused due to unknown exciting force
(C) Vibrations which are aperiodic in nature
(D) None of the above
View Answer Discuss Share

M

Mr. Dubey • 51.43K Points
Coach

Q. 78) Which of the following vibrations are classified according to magnitude of actuating force?

(A) Torsional vibrations
(B) Deterministic vibrations
(C) Transverse vibrations
(D) All of the above
View Answer Discuss Share

M

Mr. Dubey • 51.43K Points
Coach

Q. 79) In which type of vibrations, amplitude of vibration goes on decreasing every cycle?

(A) Damped vibrations
(B) Undamped vibrations
(C) Both a. and b.
(D) None of the above
View Answer Discuss Share

M

Mr. Dubey • 51.43K Points
Coach

Q. 80) The resonant frequency of a mass-spring system depends upon ________

(A) stiffness
(B) surface density
(C) depth of air space
(D) all of the above
View Answer Discuss Share