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1. A simply supported beam has a uniform distributed load. What is the
location of the maximum bending moment?
A) At the supports
B) At the midspan
C) At one-quarter span
D) At one-third span
B) At the midspan
Rationale: For a simply supported beam with a uniform distributed
load, the maximum bending moment occurs at the center of the span.
2. Which of the following soil types typically has the highest permeability?
A) Clay
B) Silt
C) Sand
D) Peat
C) Sand
Rationale: Sand has larger particle sizes and less cohesion, allowing
water to pass through more easily, resulting in higher permeability.
3. The modulus of elasticity (E) of steel is approximately:
A) 10,000 psi
B) 29,000 psi
, C) 29,000,000 psi
D) 290,000,000 psi
C) 29,000,000 psi
Rationale: Steel’s modulus of elasticity is about 29 million psi, which
reflects its stiffness.
4. In a circuit with resistors in series, the total resistance is:
A) Less than the smallest resistor
B) Equal to the largest resistor
C) The sum of individual resistances
D) The reciprocal of the sum of reciprocals
C) The sum of individual resistances
Rationale: Series resistances add directly: R_total = R1 + R2 + R3…
5. The factor of safety (FS) is defined as:
A) Ultimate stress / Allowable stress
B) Allowable stress / Ultimate stress
C) Yield stress / Ultimate stress
D) Design load / Actual load
A) Ultimate stress / Allowable stress
Rationale: FS is a ratio of the material’s ultimate strength to the
allowable design stress to ensure safety.
6. For laminar flow in a circular pipe, the Reynolds number must be less
than:
A) 1000
B) 2000
C) 4000
D) 5000
B) 2000
Rationale: Laminar flow occurs when Re < 2000; above this, flow
becomes turbulent.
7. Which load is considered a live load in building design?
A) Dead walls
B) Roof tiles
C) Occupants and furniture
, D) Concrete slab
C) Occupants and furniture
Rationale: Live loads are transient or movable loads such as people,
furniture, and equipment.
8. A cantilever beam has a point load at its free end. The maximum bending
moment occurs:
A) At the free end
B) At the fixed support
C) Midspan
D) At the load location
B) At the fixed support
Rationale: The fixed support resists the bending, creating the maximum
moment there.
9. Which of the following is a primary cause of concrete creep?
A) Rapid loading
B) Moisture loss and long-term stress
C) Freezing temperatures
D) Aggregate size
B) Moisture loss and long-term stress
Rationale: Creep is the time-dependent deformation under sustained
load, influenced by moisture movement and stress.
10.The main purpose of a retaining wall is to:
A) Provide aesthetic appeal
B) Resist lateral earth pressures
C) Support vertical loads
D) Drain surface water
B) Resist lateral earth pressures
Rationale: Retaining walls are designed to resist the lateral pressure
exerted by soil.
11.For a column under axial compression, Euler’s critical load is influenced
by:
A) Column length, cross-section, and material modulus
B) Column color and finish