The supports in the 3D are having more than three reaction forces. Because they are having three axis on which the components of the forces need to be zero, so as to equilibrate the potential energy.

The first part of the statement is false and other part is true

The first part of the statement is false and other part is false too

The first part of the statement is true and other part is false

The first part of the statement is true and other part is true too

We first make equilibrium equations of the body by considering all the three dimensional forces and then the free body diagram is made and solved. Thus the criteria for the potential energy equilibrium.

The first part of the statement is false and other part is true

The first part of the statement is false and other part is false too

The first part of the statement is true and other part is false

The first part of the statement is true and other part is true too

If the resolved force or the force which you get as the answer after solving the question is negative for the equilibrium of the potential energy, then what does this implies?

The force is not in the reverse direction w.r.t the direction set in the free body diagram

The force is in the reverse direction w.r.t the direction set in the free body diagram

The force is not in the reverse direction w.r.t the direction set in the free body diagram

The force component is not possible

The force is possible, but in the direction perpendicular to the resultant force

13 + Mcqs in Potential Energy Criterion for Equilibrium in Engineering Mechanics Page 1 McqOptions

1.	If the supports which are supporting a body at a certain height are not properly aligned then the reaction forces developed are adequate to support the body.
A.	Statement is true only in 2D
B.	Statement is true only in 3D
C.	Statement is false throughout
D.	Statement is true only in 1D
Answer» D. Statement is true only in 1D

Discussion

2.	The single pin, single bearing and single hinge resist _______ so as to attain potential energy equilibrium.
A.	Force
B.	Couple moments
C.	Both force and couple moments
D.	Inertia
Answer» D. Inertia

Discussion

3.	The supports in the 3D are having more than three reaction forces. Because they are having three axis on which the components of the forces need to be zero, so as to equilibrate the potential energy.
A.	The first part of the statement is false and other part is true
B.	The first part of the statement is false and other part is false too
C.	The first part of the statement is true and other part is false
D.	The first part of the statement is true and other part is true too
Answer» E.

Discussion

4.	Fx=0, Fy=0 and Fz=0 are vector equations for the three dimensions. They are satisfied when the body is achieved it state of equilibrium and the body has potential energy stabilised.
A.	True
B.	False
Answer» C.

Discussion

5.	If any body is tied to three or more ropes and is in the potential equilibrium, and then is allowed to achieve its equilibrium. Then the equilibrium achieved is achieved w.r.t what?
A.	The three axis of the body
B.	The ground
C.	The ropes direction
D.	The weight direction
Answer» C. The ropes direction

Discussion

6.	What is not the criteria for the equilibrium in potential energy free body diagram?
A.	Fx=0
B.	Fy=0
C.	Fz=0
D.	F 0
Answer» E.

Discussion

7.	If the supports are properly aligned then the reaction forces developed under the potential energy diagrams are adequate to support the body.
A.	Statement is true only in 2D
B.	Statement is true only in 3D
C.	Statement is true throughout
D.	Statement is true only in 1D
Answer» D. Statement is true only in 1D

Discussion

8.	Couple moment is also considered as one of the criteria for the equilibrium of the potential of the body. It should be zero sometimes. So a couple moment is developed when _______ of the attached member is prevented.
A.	Translation
B.	Rotation
C.	Addition
D.	Subtraction
Answer» C. Addition

Discussion

9.	We first make equilibrium equations of the body by considering all the three dimensional forces and then the free body diagram is made and solved. Thus the criteria for the potential energy equilibrium.
A.	The first part of the statement is false and other part is true
B.	The first part of the statement is false and other part is false too
C.	The first part of the statement is true and other part is false
D.	The first part of the statement is true and other part is true too
Answer» E.

Discussion

10.	A force is developed by a support that not allows the ________ of its attached member in the calculation of the potential energy.
A.	Translation
B.	Rotation
C.	Addition
D.	Subtraction
Answer» B. Rotation

Discussion

11.	If the resolved force or the force which you get as the answer after solving the question is negative for the equilibrium of the potential energy, then what does this implies?
A.	The force is in the reverse direction w.r.t the direction set in the free body diagram
B.	The force is not in the reverse direction w.r.t the direction set in the free body diagram
C.	The force component is not possible
D.	The force is possible, but in the direction perpendicular to the resultant force
Answer» B. The force is not in the reverse direction w.r.t the direction set in the free body diagram

Discussion

12.	If the body is upward the ground then the distance taken is __________
A.	Positive
B.	Negative
C.	Imaginary
D.	Gaussian
Answer» B. Negative

Discussion

13.	If solving the question in 3D calculations is difficult, then use the 2D system and then equate the total net force to zero as the criteria of the potential energy for equilibrium.
A.	True
B.	False
Answer» B. False

Discussion

Explore topic-wise MCQs in Engineering Mechanics.

If the supports which are supporting a body at a certain height are not properly aligned then the reaction forces developed are adequate to support the body.

The single pin, single bearing and single hinge resist _______ so as to attain potential energy equilibrium.

The supports in the 3D are having more than three reaction forces. Because they are having three axis on which the components of the forces need to be zero, so as to equilibrate the potential energy.

Fx=0, Fy=0 and Fz=0 are vector equations for the three dimensions. They are satisfied when the body is achieved it state of equilibrium and the body has potential energy stabilised.

If any body is tied to three or more ropes and is in the potential equilibrium, and then is allowed to achieve its equilibrium. Then the equilibrium achieved is achieved w.r.t what?

What is not the criteria for the equilibrium in potential energy free body diagram?

If the supports are properly aligned then the reaction forces developed under the potential energy diagrams are adequate to support the body.

Couple moment is also considered as one of the criteria for the equilibrium of the potential of the body. It should be zero sometimes. So a couple moment is developed when _______ of the attached member is prevented.

We first make equilibrium equations of the body by considering all the three dimensional forces and then the free body diagram is made and solved. Thus the criteria for the potential energy equilibrium.

A force is developed by a support that not allows the ________ of its attached member in the calculation of the potential energy.

If the resolved force or the force which you get as the answer after solving the question is negative for the equilibrium of the potential energy, then what does this implies?

If the body is upward the ground then the distance taken is __________

If solving the question in 3D calculations is difficult, then use the 2D system and then equate the total net force to zero as the criteria of the potential energy for equilibrium.