Truss MCQ Quiz in తెలుగు - Objective Question with Answer for Truss - ముఫ్త్ [PDF] డౌన్‌లోడ్ కరెన్

Last updated on Mar 14, 2025

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Latest Truss MCQ Objective Questions

Top Truss MCQ Objective Questions

Truss Question 1:

Identify the type of truss shown in the below figure based on the degree of redundancy. Consider that truss is support with roller type at A and hinged type at F.

F1 Vinanti Engineering 31.01.23 D12

  1. Over rigid truss
  2. Redundant truss
  3. Perfect truss
  4. Deficient truss

Answer (Detailed Solution Below)

Option 3 : Perfect truss

Truss Question 1 Detailed Solution

Concept:

Perfect truss:

A truss which has enough members to resist the load without deformation in its shape is called a perfect truss. A triangular truss is the simplest perfect truss and has three joints and three members.

Condition for perfect truss

\(M=2j-3\)

Where M = Number of members

j = Number of joints

Important points:

  • \(M>2j-3\,\, Redundent\)
  • \(M<2j-3\,\,Deficient\)

Explanation:

Given

Number of member in given figure (M) = 9

Number of joint in given figure (j) = 6

2j - 3 = 2 × 6 - 3 = 9

\(2j-3=9\)

M = 2j - 3

Hence the given figure of truss in the question is a perfect truss.

Truss Question 2:

If in a pin-jointed plane frame (m + r) > 2 j (where m is number of members, r is reaction components and j is number of joints), then the frame is

  1. stable and statically indeterminate
  2. stable and statically determinate
  3. unstable
  4. None of the above

Answer (Detailed Solution Below)

Option 1 : stable and statically indeterminate

Truss Question 2 Detailed Solution

Explanation:

In general, let a frame have j joints and m members.

If m + r = 2j , then the frame is perfect frame.

If m + r < 2j , then the frame is deficient frame.

If m + r > 2j , then the frame is redundant frame.

A perfect frame can always be analyzed by the condition of equilibrium. While a redundant frame cannot be fully analyzed by the condition of equilibrium.

Hence, If in a pin-jointed plane frame (m + r) > 2 j, then the frame is stable and statically indeterminate.

Additional InformationThe static indeterminacy for frames under different conditions are:

1. Pin Jointed space Frame (3D)

Ds = m + r - 3j

2. Pin Jointed Plane Frame (2D)

Ds = m + r - 2j

 3. Rigid Jointed Plane Frame (2D):

DS = 3m + r - 3j - R;

4. Rigid Jointed Space Frame (3D):

DS = 6m + r - 6j - 3R;

Where,

m is the no of members

r is no. of support reactions

R is total no. of releases

J is the nos. of joints

Truss Question 3:

The load shared by the member BC of the structure shown in figure below is :

F1  Akhil 20-12-21 savita D1

  1. 2√3 t
  2. 3√2 t
  3. 4t
  4. 3t

Answer (Detailed Solution Below)

Option 3 : 4t

Truss Question 3 Detailed Solution

Calculation:

Given structure in below figure:

F1  Akhil 20-12-21 savita D1

Now draw the free body diagram of point B

F1 Shraddha Akhil 04.01.2022 D10

Hence, apply the equilibrium for forces in the vertical direction 

\(\sum F_y =0\)

FCB Sin30 = 2t

FCB \(\times \ {1 \over 2}\) = 2t

FCB = 4t

Truss Question 4:

Identify the zero force members in the truss.

F1 AkhilP Madhuri 03.03.2022 D1

  1. DE = EF = FG =GH = LM = LK = KJ = JH = 0
  2. DE = EF = FG =GH = LM = LK = KJ = 0
  3. AE = EG = GB = CL= JL = JB = 0
  4. AD = DF = FH = CM = MK = KH = 0

Answer (Detailed Solution Below)

Option 2 : DE = EF = FG =GH = LM = LK = KJ = 0

Truss Question 4 Detailed Solution

Concept-

Conditions for zero force members-

  • At a two member joint, if the members are not parallel and there are no other external loads (or reactions) at the joint then both of those members are zero force members.
  • F1 Akhil Madhuri 02.03.2022 D1
  • In a three member joint, if two of those members are parallel and there are no other external loads (or reactions) at the joint then the member that is not parallel is a zero force member.

  • F1 Akhil Madhuri 02.03.2022 D2

Given data and Analysis-

As per condition 2, the zero force members are -

DE = EF = FG =GH = LM = LK = KJ = 0

F1 Akhil Madhuri 02.03.2022 D3

Truss Question 5:

If a truss has two more members surpassing each other, then it is:-

  1. Simple
  2.  Compound
  3. Complex
  4. None of these

Answer (Detailed Solution Below)

Option 3 : Complex

Truss Question 5 Detailed Solution

Truss: It is defined as a framework, typically consisting of rafters, posts, and struts, supporting a roof, bridge, or other structure.

Truss can be classified as follows:

a) Simple Truss: It consists of a series of triangles so that the weight being supported is distributed evenly to the supports.

b) Complex Truss: It is not necessarily a set of the triangle as the members may overlap each other.

Eg 78

Given above is an example of a complex truss.

Truss Question 6:

quesOptionImage177

Find the number of members having zero force?

  1. 13
  2. 14
  3. 15
  4. 16

Answer (Detailed Solution Below)

Option 3 : 15

Truss Question 6 Detailed Solution

Concept:

If two non-collinear members meet at a joint, and there is no force at that joint then the forces on two members will be zero.

Truss Member Carrying Zero forces

i) M1, M2, M3 meet at a joint M1 & M2 are collinear.

⇒ M3 carries zero force.

F1 N.M. Nita 06.11.2019 D 6

Where M1, M2, M3 represents member.

ii) M1 & M2 are non collinear and Fext = 0

⇒ M1 & M2 carries zero force.

F1 N.M. Nita 06.11.2019 D 7

For the given truss, these members are zero:

F1 A.M 22.6.20 Pallavi D6

∴ No. of members having zero forces = 15

Truss Question 7:

Which of the following statements is true?

A. Simple trusses consist entirely of a triangle.

B. It can consists of any other shaped intermediate parts, as long as it is stable.

  1. Only A
  2. Only B
  3. Both A and B
  4. Neither A nor B

Answer (Detailed Solution Below)

Option 3 : Both A and B

Truss Question 7 Detailed Solution

A truss is defined as a framework, typically consisting of rafters, posts, and struts, supporting a roof, bridge, or other structure.

The most simple type of truss is a triangle truss.

Simple trusses consist of a series of triangles so that the weight being supported is distributed evenly to the supports.

Some of the different types of simple trusses are as follows:

F3 N.M M.P 18 July 2019 D 1

∴ The simple truss may consist of any other shaped intermediate parts, as long as it is stable.

∴ Both statements A and B are correct.

Truss Question 8:

Determine the type of truss shown 

5f8e9e78dabc4d8e0fbb5e01 16381072910901

  1. Perfect

  2. deficient
  3. redundant
  4. none of the above

Answer (Detailed Solution Below)

Option 2 : deficient

Truss Question 8 Detailed Solution

Explanation:

A truss is a network of longitudinal members joined at ends.

Applications: Roofs, bridges, and towers.

Types of truss:

Perfect truss:

It is rigid and statically determinate.

For a truss to be perfect, the condition is:

m + 3 = 2J.

Imperfect truss

  • Redundant truss: A truss that is imperfect due to the presence of more members than required is known as a redundant truss.
  • Condition for redundant truss is

m + 3 > 2j,

where m and j are members and joints respectively

  • Deficient truss: A truss that is imperfect due to the presence of fewer members than required is known as a Deficient truss.
  • Condition for deficient truss is

m + 3 < 2j

5f8e9e78dabc4d8e0fbb5e01 16381072910942

members (m) = 14

joints (j) = 9

14 + 3 < 2 × 9

17 < 18 (deficient truss)

Truss Question 9:

Which of the following is NOT the assumption made in the analysis of trusses? 

  1. The members of truss are straight. 
  2. All the members of truss are pin jointed members. 
  3. All the members of truss are flexible.  
  4. Forces are acting only on joints. 

Answer (Detailed Solution Below)

Option 3 : All the members of truss are flexible.  

Truss Question 9 Detailed Solution

Explanation

The objective of truss analysis is to determine the reactions and member forces. The methods used for carrying out the analysis with the equations of equilibrium and by considering only parts of the structure through analyzing its free body diagram to solve the unknowns.

The assumptions made in the analysis of truss -

  • Truss members are connected together at their ends only.
  • Truss are connected together by frictionless pins.
  • The truss structure is loaded only at the joints.
  • The weights of the members may be neglected.
  • The bending resistance of all the members is small in comparison with their axial force resistance.
  • At any joint, the axes of all members meeting pass through a single point


There are various methods to analyze a truss considering the above mentioned assumptions. They are:

  • Method of joints,
  • Method of sections.

Truss Question 10:

What is the force in member AB of the pin-jointed frame as shown below?

F17 Abhishek M 17-4-2021 Swati D7

  1. P (tension)
  2. P (compression)
  3. \(\frac{P}{{\sqrt 2 }}\) (compression)
  4. Zero

Answer (Detailed Solution Below)

Option 4 : Zero

Truss Question 10 Detailed Solution

Concept:

Planar Truss: When all the members and nodes of a truss lie within a 2-dimensional plane it is called a planar truss.

Members of a truss carry only axial force. If the member of a truss does not carry any force under some specific load conditions, those members are called zero-force members.

Identification of zero-force members:

1) If at any joint two members are non-collinear and no load is acting at the joint, then both the members will be zero-force members.

e.g.

F1 Neel Madhu 10.04.20 D1

In the truss shown above, there are two non-collinear members at joint D and there is no load acting at this joint, hence both the members BD and CD are zero force members.

2) If at a truss joint, 3 members are meeting and two of them are collinear and no load is acting at the joint, then the non-collinear member will be a zero-force member.

e.g.

F1 Neel Madhu 10.04.20 D2

Explanation:

From the figure, as we can see that there is no any load external member AD and AB.

If only two non-collinear members exist at a truss joint and no external force or support reaction is applied to the joint, the member must be zero force members.

Hence the force in the member AB = Zero

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