1. Which type of beam reinforcement is used to resist both tension and compression forces?
a) Singly reinforced beam
b) Doubly reinforced beam
c) Flanged beam
d) Continuous beam
Explanation: Option b) Doubly reinforced beam is used when the section of the beam is subjected to significant tensile and compressive forces simultaneously. It contains both tension (bottom) and compression (top) reinforcements to enhance its load-bearing capacity.
2. What type of beam is typically employed for supporting the weight of a wall above an opening?
a) Lintel
b) Cantilever beam
c) Simply supported beam
d) Continuous beam
Explanation: Option a) Lintel is a type of beam designed specifically to support the weight of a wall above an opening, such as doors or windows, transferring the load to the adjacent walls or columns.
3. In which beam configuration is one end free to move horizontally while the other end is fixed?
a) Simply supported beam
b) Continuous beam
c) Cantilever beam
d) Doubly reinforced beam
Explanation: Option c) Cantilever beam is anchored at one end and free to move horizontally at the other end. It’s commonly used in structures like balconies or diving boards.
4. Which type of beam allows for redistribution of moments to optimize load distribution?
a) Simply supported beam
b) Continuous beam
c) Doubly reinforced beam
d) Flanged beam
Explanation: Option b) Continuous beam allows for redistribution of moments along its length, enabling a more efficient distribution of loads and stresses within the structure.
5. What type of girder has a circular cross-section?
a) Rectangular girder
b) Deep beam
c) Circular girder
d) T-beam
Explanation: Option c) Circular girder has a circular cross-section and is commonly used in structures like bridges and large-scale infrastructure projects.
6. Which beam type is characterized by having a significant depth in comparison to its span?
a) Deep beam
b) Lintel
c) Flanged beam
d) T-beam
Explanation: Option a) Deep beam is characterized by its large depth in relation to its span. It’s often employed in structures where high shear forces or large unsupported spans are present.
7. What aspect of beam design is concerned with ensuring proper adhesion between reinforcement bars and concrete?
a) Shear design
b) Bond design
c) Moment redistribution
d) Compression reinforcement
Explanation: Option b) Bond design focuses on ensuring adequate adhesion between reinforcement bars and the surrounding concrete to prevent slippage or separation under load.
8. Which type of reinforcement is primarily utilized to enhance a beam’s resistance to shear forces?
a) Tension reinforcement
b) Compression reinforcement
c) Stirrups
d) Flanges
Explanation: Option c) Stirrups, also known as shear reinforcement, are primarily used to enhance a beam’s resistance to shear forces by preventing diagonal cracking and enhancing overall structural integrity.
9. What type of beam reinforcement is situated at the bottom of a beam to resist tensile forces?
a) Compression reinforcement
b) Stirrups
c) Flanges
d) Tension reinforcement
Explanation: Option d) Tension reinforcement is placed at the bottom of a beam to resist tensile forces induced by bending moments and loads.
10. In beam design, what is the term for the process of transferring loads from the structure to the ground?
a) Redistribution
b) Load bearing
c) Load transfer
d) Structural integrity
Explanation: Option c) Load transfer refers to the process of transferring loads from the structure, such as beams, to the ground or supporting structure to ensure structural stability and integrity.