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RC Design Quiz

Total questions: 50

Worksheet time: 36mins

Name
Class
Date
1.
What is the main purpose of Eurocode 2?
a)
To provide design rules for steel structures
b)
To provide design rules for timber structures
c)
To provide design rules for concrete structures
d)
To provide design rules for geotechnical design
2.
True or False: Eurocode 0 deals with the basis of structural design.
a)
True
b)
False
3.
Which Eurocode covers actions on structures?
a)
EC1
b)
EC2
c)
EC3
d)
EC4
4.
Limit State Design ensures safety by considering:
a)
Working load only
b)
Ultimate and serviceability limits
c)
Yield stress
d)
Fatigue life
5.
True or False: Characteristic strength is defined as the strength below which 5% of test results fall.
a)
True
b)
False
6.
What is the typical partial safety factor for concrete in ULS design according to EC2?
a)
1.5
b)
1.35
c)
1.0
d)
1.15
7.
Which of the following is NOT a type of structural load?
a)
Dead load
b)
Live load
c)
Wind load
d)
Pore water pressure
8.
The serviceability limit state ensures:
a)
Collapse prevention
b)
No cracking
c)
User comfort
d)
No corrosion
9.
Which material property is most relevant in serviceability checks?
a)
Compressive strength
b)
Modulus of elasticity
c)
Tensile strength
d)
Density
10.
Load transfer in RC structures is primarily through:
a)
Friction
b)
Bond
c)
Reinforcement
d)
Stress redistribution
11.
Durability in RC structures is improved by:
a)
High water-cement ratio
b)
Using plain bars
c)
Increasing cover
d)
Adding fine sand
12.
Which document provides combination factors for loads in EC?
a)
EC1 Part 1-1
b)
EC2 Part 1
c)
EC0
d)
BS8110
13.
True or False: A doubly reinforced section has reinforcement only in tension zone.
a)
True
b)
False
14.
For flanged beams, compression zone is usually in:
a)
Flange
b)
Web
c)
Tension reinforcement
d)
Stirrups
15.
Which of the following increases flexural capacity most effectively?
a)
Increase bar diameter
b)
Reduce span
c)
Increase cover
d)
Use mild steel
16.
The neutral axis in a balanced RC section lies:
a)
Above the tension steel
b)
Within tension zone
c)
At centroid
d)
At maximum compressive strain
17.
True or False: Flanged beams are commonly used in slabs with beams cast monolithically.
a)
True
b)
False
18.

In EC2, when is it necessary to provide additional shear reinforcement beyond the minimum requirements?

a)

When design shear exceeds the shear capacity

b)

When design shear is less than the shear capacity

c)

Only in seismic zones

d)

Only for large structures

19.
Bond stress is critical in:
a)
Compression members
b)
Shear walls
c)
Lap splice areas
d)
Slabs
20.
True or False: Lap length depends on bar diameter and concrete grade.
a)
True
b)
False
21.
Deflection control is typically checked under:
a)
Ultimate load
b)
Dead load only
c)
Service load
d)
No load
22.
Which clause in EC2 deals with serviceability limit state?
a)
6.1
b)
7.4
c)
9.2
d)
5.3
23.
Curtailment of bars must ensure:
a)
Anchorage is provided
b)
Cost saving
c)
Splice is far from supports
d)
None of the above
24.
True or False: Shear links are always required even if V_ed < V_rd,c.
a)
True
b)
False
25.
Shear failure is typically:
a)
Ductile
b)
Gradual
c)
Brittle
d)
Predictable
26.

True or False: In accordance with EC2, flat slabs are designed without beams.

a)

True

b)

False

27.

In comparing a one-way and a two-way slab under the same UDL and support conditions, the two-way slab typically experiences:

a)

Higher midspan moment per meter width

b)

More deflection along short span

c)

Lower required slab thickness

d)

Equal reinforcement in both directions

28.

While reviewing a cantilever beam design, you find that tension bars are curtailed too early near the fixed end. What failure is most likely to occur first?

a)

Bond failure

b)

Flexural failure

c)

Shear failure

d)

Anchorage pullout

29.

An RC slab shows service cracks wider than the EC2 allowable limit. Which adjustment provides the best long-term solution?

a)

Decrease bar spacing and use smaller bars

b)

Increase bar diameter and spacing

c)

Increase slab thickness

d)

Use higher strength concrete

30.
True or False: One-way slabs bend primarily in one direction.
a)
True
b)
False
31.
In one-way slab design, the critical section for maximum moment is at:
a)
Mid-span
b)
Support
c)
Quarter-span
d)
Edge
32.

During beam detailing, a student uses a 200 mm effective depth and provides tension steel resulting in a low lever arm z. What is the most significant implication on beam behaviour?

a)

Reduced shear strength

b)

Increased crack width

c)

Inefficient moment resistance

d)

Excessive anchorage length

33.
In EC2, deflection check in slab is simplified using:
a)
Shear stress
b)
Span/depth ratio
c)
Load factor
d)
Yield strain
34.
True or False: Serviceability design ensures structure doesn’t collapse.
a)
True
b)
False
35.
Bending moment for simply supported one-way slab under UDL is given by:
a)
wl²/8
b)
wl²/12
c)
wL/2
d)
wL
36.
The effective span of a simply supported slab is:
a)
Clear span
b)
Clear span + effective depth
c)
Support to support
d)
Length between columns
37.
True or False: Two-way slabs are supported on all four edges.
a)
True
b)
False
38.
Main reinforcement in two-way slabs is placed:
a)
Only in one direction
b)
In both directions
c)
Near edges only
d)
Randomly
39.
Torsion strips in two-way slabs are used to:
a)
Reduce dead load
b)
Control cracking
c)
Provide moment redistribution
d)
Prevent torsional cracks at corners
40.

What is a key characteristic of a two-way slab?

a)

Supports loads in one direction

b)

Requires a high aspect ratio

c)

Distributes loads in two directions

d)

Is only used for cantilever designs

41.
True or False: Slabs spanning in two directions must be cast monolithically.
a)
True
b)
False
42.
Load transfer in a simply supported beam is from:
a)
Slab to column
b)
Beam to column
c)
Beam to slab
d)
Column to beam
43.
True or False: Bending moment in a continuous beam is always zero at midspan.
a)
True
b)
False
44.

An existing slab fails the deflection check under service load. Based on EC2, which modification is most effective to bring it within limits without altering thickness?

a)

Add more top steel

b)

Reduce load factor

c)

Decrease spacing of tension reinforcement

d)

Provide compression reinforcement

45.
For a uniformly distributed load on a fixed beam, the moment at support is:
a)
Zero
b)
wL²/12
c)
wL²/8
d)
wL²/10
46.

What is the primary purpose of using shear reinforcement in beams?

a)

To reduce deflection

b)

To enhance ductility

c)

To prevent shear failure

d)

To resist bending moments

47.

What is the typical design approach for controlling deflection in reinforced concrete beams?

a)

Reduce the span of the beam

b)

Increase the depth of the beam

c)

Use higher strength concrete

d)

Add more tension reinforcement

48.

A two-way slab with aspect ratio 1.0 shows early corner cracking during service. Which of the following design flaws is most likely responsible?

a)

Lack of torsional reinforcement at corners

b)

Underestimated punching shear

c)

Improper boundary conditions

d)

Excessive cover to reinforcement

49.

Given two beams of the same span and loading — one with high-strength concrete (C50/60) and one with normal-strength concrete (C30/37) — what is the expected design trade-off?

a)

High-strength beam requires more reinforcement

b)

High-strength beam is more ductile

c)

High-strength beam has lower strain capacity

d)

High-strength beam allows shallower section

50.

You are evaluating an RC beam where the calculated moment capacity MRdM_{Rd}MRd​ is marginally lower than the design moment MEdM_{Ed}MEd​. Which is the most rational solution under EC2 without increasing beam size?

a)

Increase concrete cover

b)

Add compression reinforcement

c)

Reduce partial safety factor

d)

Remove stirrups near midspan

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