Which type of glass is designed to shatter into small, rounded pieces upon breaking, increasing safety?
a) Tempered glass
b) Laminated glass
c) Float glass
d) Frosted glass
View Answer
Answer: a) Tempered glass
Explanation: Tempered glass undergoes a special heat treatment process, making it break into small, harmless pieces when shattered.
Which of the following is a natural fiber used in composite materials?
a) Fiberglass
b) Kevlar
c) Carbon fiber
d) Hemp
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Answer: d) Hemp
Explanation: Hemp is a natural fiber that can be used as a reinforcement material in composite structures.
Which material is highly resistant to chemical corrosion and is commonly used in chemical processing plants?
a) Copper
b) PVC (Polyvinyl chloride)
c) Galvanized steel
d) Teflon (Polytetrafluoroethylene)
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Answer: d) Teflon (Polytetrafluoroethylene)
Explanation: Teflon is known for its exceptional chemical resistance and is often used in chemical processing equipment.
What is the main ingredient in traditional ceramics like clay pots and bricks?
a) Silica
b) Alumina
c) Clay
d) Calcium carbonate
View Answer
Answer: c) Clay
Explanation: Traditional ceramics are made from clay, which is a natural material composed mainly of aluminum silicates.
Which material is an excellent electrical insulator and is widely used for electrical wiring?
a) Copper
b) Aluminum
c) Silver
d) PVC (Polyvinyl chloride)
View Answer
Answer: d) PVC (Polyvinyl chloride)
Explanation: PVC is a non-conductive material commonly used as an insulator for electrical wires and cables.
Which type of foundation is most suitable for soft and compressible soil?
a) Pile foundation
b) Raft foundation
c) Strip foundation
d) Footing foundation
View Answer
Answer: a) Pile foundation
Explanation: Pile foundations are used in soft or compressible soil to transfer loads to a deeper, more stable layer.
What is the purpose of a lintel in a building structure?
a) To provide lateral stability
b) To support the roof
c) To transfer loads from the walls to the foundation
d) To span the opening above doors and windows
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Answer: d) To span the opening above doors and windows
Explanation: Lintels are horizontal beams placed above openings like doors and windows to support the load from the structure above.
What does the term “rebar” refer to in construction?
a) A type of concrete mix
b) A steel reinforcement bar used in concrete structures
c) A type of roof truss
d) A temporary support structure during construction
View Answer
Answer: b) A steel reinforcement bar used in concrete structures
Explanation: Rebar, short for reinforcing bar, is used to reinforce concrete structures, making them stronger and more resistant to tension.
What is the purpose of a vapor barrier in concrete construction?
a) To provide insulation to the concrete
b) To protect the concrete from weather elements
c) To shape and support the concrete until it gains strength
d) To enhance the aesthetics of the concrete surface
View Answer
Answer: a) To provide insulation to the concrete
Explanation: Vapor barriers help control moisture movement and prevent condensation within the building envelope.
Which type of roofing material is known for its durability, fire resistance, and longevity?
a) Asphalt shingles
b) Metal roofing
c) Thatch
d) Clay tiles
View Answer
Answer: d) Clay tiles
Explanation: Clay tiles are popular for their durability, fire resistance, and long lifespan.
