%94 KB/S Find : 1. dynamic load on each bearing due to the out-of-balance couple; and 2. kinetic energy of the complete assembly. [Ans. 6.12 kg: 8.7 N-m] L 2. 3. 4. 5. 1. 2. 5. DO YOU KNOW? Why is balancing of rotating parts necessary for high speed engines? Explain clearly the terms "static balancing' and 'dynamic balancing'. State the necessary conditions to achieve them. Discuss how a single revolving mass is balanced by two masses revolving in different planes. Chapter 21: Balancing of Rotating Masses .857 Explain the method of balancing of different masses revolving in the same plane. How the different masses rotating in different planes are balanced? OBJECTIVE TYPE QUESTIONS The balancing of rotating and reciprocating parts of an engine is necessary when it runs at (a) slow speed (b) medium speed (c) high speed A disturbing mass, attached to a rotating shaft may be balanced by a single mass m, attached in the same plane of rotation as that of my such that (a) (b) F For static balancing of a shaft. (a) the net dynamic force acting on the shaft is equal to zero (b) the net couple due to the dynamic forces acting on the shaft is equal to zero (c) both (a) and (b) (d) none of the above For dynamic balancing of a shaft, (a) the net dynamic force acting on the shaft is equal to zero (b) the net couple due to dynamic forces acting on the shaft is equal to zero (c) both (a) and (b) (d) none of the above In order to have a complete balance of the several revolving masses in different planes (a) the resultant force must be zero (b) the resultant couple must be zero (c) both the resultant force and couple must be zero (d) none of the above 1. (e) 2() ANSWERS 3. (a) 4(e) 5. (e) Powered by WPS Office ۲:۱۸ GO TO FIRST
%94 KB/S Find : 1. dynamic load on each bearing due to the out-of-balance couple; and 2. kinetic energy of the complete assembly. [Ans. 6.12 kg: 8.7 N-m] L 2. 3. 4. 5. 1. 2. 5. DO YOU KNOW? Why is balancing of rotating parts necessary for high speed engines? Explain clearly the terms "static balancing' and 'dynamic balancing'. State the necessary conditions to achieve them. Discuss how a single revolving mass is balanced by two masses revolving in different planes. Chapter 21: Balancing of Rotating Masses .857 Explain the method of balancing of different masses revolving in the same plane. How the different masses rotating in different planes are balanced? OBJECTIVE TYPE QUESTIONS The balancing of rotating and reciprocating parts of an engine is necessary when it runs at (a) slow speed (b) medium speed (c) high speed A disturbing mass, attached to a rotating shaft may be balanced by a single mass m, attached in the same plane of rotation as that of my such that (a) (b) F For static balancing of a shaft. (a) the net dynamic force acting on the shaft is equal to zero (b) the net couple due to the dynamic forces acting on the shaft is equal to zero (c) both (a) and (b) (d) none of the above For dynamic balancing of a shaft, (a) the net dynamic force acting on the shaft is equal to zero (b) the net couple due to dynamic forces acting on the shaft is equal to zero (c) both (a) and (b) (d) none of the above In order to have a complete balance of the several revolving masses in different planes (a) the resultant force must be zero (b) the resultant couple must be zero (c) both the resultant force and couple must be zero (d) none of the above 1. (e) 2() ANSWERS 3. (a) 4(e) 5. (e) Powered by WPS Office ۲:۱۸ GO TO FIRST
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
![%94 KB/S
Find : 1. dynamic load on each bearing due to the out-of-balance couple; and 2. kinetic energy of
the complete assembly.
[Ans. 6.12 kg: 8.7 N-m]
L
2.
3.
4.
5.
1.
2.
5.
DO YOU KNOW?
Why is balancing of rotating parts necessary for high speed engines?
Explain clearly the terms "static balancing' and 'dynamic balancing'. State the necessary conditions
to achieve them.
Discuss how a single revolving mass is balanced by two masses revolving in different planes.
Chapter 21: Balancing of Rotating Masses .857
Explain the method of balancing of different masses revolving in the same plane.
How the different masses rotating in different planes are balanced?
OBJECTIVE TYPE QUESTIONS
The balancing of rotating and reciprocating parts of an engine is necessary when it runs at
(a) slow speed
(b) medium speed (c) high speed
A disturbing mass, attached to a rotating shaft may be balanced by a single mass m, attached in
the same plane of rotation as that of my such that
(a)
(b) F
For static balancing of a shaft.
(a) the net dynamic force acting on the shaft is equal to zero
(b) the net couple due to the dynamic forces acting on the shaft is equal to zero
(c) both (a) and (b)
(d) none of the above
For dynamic balancing of a shaft,
(a) the net dynamic force acting on the shaft is equal to zero
(b) the net couple due to dynamic forces acting on the shaft is equal to zero
(c) both (a) and (b)
(d) none of the above
In order to have a complete balance of the several revolving masses in different planes
(a) the resultant force must be zero
(b) the resultant couple must be zero
(c) both the resultant force and couple must be zero
(d) none of the above
1. (e)
2()
ANSWERS
3. (a)
4(e)
5. (e)
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Transcribed Image Text:%94 KB/S
Find : 1. dynamic load on each bearing due to the out-of-balance couple; and 2. kinetic energy of
the complete assembly.
[Ans. 6.12 kg: 8.7 N-m]
L
2.
3.
4.
5.
1.
2.
5.
DO YOU KNOW?
Why is balancing of rotating parts necessary for high speed engines?
Explain clearly the terms "static balancing' and 'dynamic balancing'. State the necessary conditions
to achieve them.
Discuss how a single revolving mass is balanced by two masses revolving in different planes.
Chapter 21: Balancing of Rotating Masses .857
Explain the method of balancing of different masses revolving in the same plane.
How the different masses rotating in different planes are balanced?
OBJECTIVE TYPE QUESTIONS
The balancing of rotating and reciprocating parts of an engine is necessary when it runs at
(a) slow speed
(b) medium speed (c) high speed
A disturbing mass, attached to a rotating shaft may be balanced by a single mass m, attached in
the same plane of rotation as that of my such that
(a)
(b) F
For static balancing of a shaft.
(a) the net dynamic force acting on the shaft is equal to zero
(b) the net couple due to the dynamic forces acting on the shaft is equal to zero
(c) both (a) and (b)
(d) none of the above
For dynamic balancing of a shaft,
(a) the net dynamic force acting on the shaft is equal to zero
(b) the net couple due to dynamic forces acting on the shaft is equal to zero
(c) both (a) and (b)
(d) none of the above
In order to have a complete balance of the several revolving masses in different planes
(a) the resultant force must be zero
(b) the resultant couple must be zero
(c) both the resultant force and couple must be zero
(d) none of the above
1. (e)
2()
ANSWERS
3. (a)
4(e)
5. (e)
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