## Theory of Structures MCQ Practice Questions (Civil Eng) Set 4

Options are :

• C
• A
• D
• B

##### A masonry dam (density = 20, 000 N/m3) 6 m high, one metre wide at the top and 4 m wide at the base, has vertical water face. The minimum stress at the base of the dam when the reservoir is full, will be:

Options are :

• 750 N/m^(2)
• 75 N/m^(2)
• 75000 N/m^(2)
• 7500 N/m^(2)

Options are :

• A
• B
• D
• C

Options are :

• Joint B
• Joint C
• Joint A
• Joint D

Options are :

• B
• D
• A
• C

##### The forces acting on the bar as shown in the given figure introduce:Larger image

Options are :

• Compressive stress
• None of these
• Shear stress
• Tensile stress

##### Pick up the correct statement from the following:

Options are :

• Deflection in lateral direction of a long column, is generally known as buckling
• The structural member subjected to compression and whose dimensions are small as compared to its length, is called a stmt
• All the above
• The vertical compression members, are generally known as columns or stanchions

Options are :

• B
• A
• C
• D

##### A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised:

Options are :

• All the above
• Composite beam gets subjected to a couple
• Composite beam bends
• Steel experiences tensile force
• Brass experiences compressive force

Options are :

• 2.75 cm
• 5.0 cm
• 3.50 cm
• 3.00 cm
• 4.25 cm

##### The force in EC of the truss shown in the given figure, is:Larger image

Options are :

• Zero
• None of these
• 5t tension
• 4t tension
• 5t compression

Options are :

• E
• A
• D
• B
• C

Options are :

• B
• D
• A
• C

##### For calculating the allowable stress of long columns Larger image is the empirical formula, known as:

Options are :

• Straight line formula
• Parabolic formula
• Perry's formula
• Rankine's formula

Options are :

• 45°
• 90°
• 60°
• 30°

Options are :

• B
• A
• D
• C

Options are :

• B
• C
• D
• A

##### In the truss shown in given figure the force in member DC is:Larger image

Options are :

• 100 t compressive
• 100 t tensile
• Zero
• Indeterminate

##### Maximum strain theory for the failure of a material at the elastic limit, is known as:

Options are :

• Von Mises's theory
• St. Venant's theory
• Guest's or Trecas' theory
• Haig's theory
• Rankine's theory

##### The force in AC of the truss shown in the given figure, is:Larger image

Options are :

• 4t compression
• None of these
• 5t compression
• 4t tension
• 5t tension

##### A body is said to be in equilibrium if:

Options are :

• It moves horizontally
• It rotates about its C.G.
• It moves vertically
• None of these

Options are :

• A
• B
• D
• C

Options are :

• B
• D
• C
• A

Options are :

• A
• D
• B
• C

##### The force in CD of the truss shown in given figure, is:Larger image

Options are :

• 1.5t tension
• 3t tension
• 1.5t compression
• 3t compression
• Zero

##### Larger image is the equation of Euler's crippling load if:

Options are :

• Both the ends are hinged
• One end is fixed and other end is hinged
• Both at the ends are fixed
• One end is fixed and other end is free

Answer :Both at the ends are fixed

Options are :

• C
• B
• D
• A

Options are :

• D
• C
• B
• A

##### The forces acting normally on the cross section of a bar shown in the given figure introduce:Larger image

Options are :

• Shear stress
• None of these
• Compressive stress
• Tensile stress

Options are :

• 4
• 2
• 1
• 3