RCC VEDA 18-05-2025

What is the limiting depth of the neutral axis?

• Depth when only steel reaches yield
• Depth when only concrete fails
• Depth when both concrete and steel reach permissible values
• Depth when load becomes maximum

In an under-reinforced section, which material yields first?

• Concrete
• Steel
• Both simultaneously
• Depends on load

Which section reaches failure strain in both steel and concrete at the same time?

• Under-reinforced
• Over-reinforced
• Balanced
• Doubly reinforced

In an over-reinforced section, which material fails first?

• Steel
• Concrete
• Both simultaneously
• None

When is a doubly reinforced beam used?

• When width and depth is restricted

• When width is restricted

• When depth is restricted

• When large moments are expected

When is a doubly reinforced beam used?

• When width and depth is restricted

• When large moments are expected

In a doubly reinforced beam, what is true about the stress in compression steel?

• Not related to tension steel stress
• Less than permissible tension stress
• More than permissible tension stress
• Equal to permissible tension stress

IS 456 recommends span/depth ratios to control which of the following?

• Cracking
• Shear
• Deflection
• Stress

Soffit formwork of beam can be removed after

• 1 - 2 days

• 3 days

• 7 days

• 21 days

Props of beams spanning upto 6m can be removed after

• 1 - 2 days

• 14 days

• 21 days

• 21 days