WorksheetsCBA ASSESSMENT
Total questions: 10
Worksheet time: 5mins
Which compound is added to cement clinker to delay setting time?
A) Silica
B) Lime
C) Gypsum
D) Calcium chloride
Q2. What are the four main constituents of Portland cement
A) Lime, Silica, Magnesia, Soda ash
B) Lime, Silica, Soda, Sulphur
C) Lime, Silica, Phosphorus, Alumina
D) Lime, Silica, Alum
Which material is commonly used for thermal insulation in buildings?**
A) Concrete
B) Brick
C) Glass wool
D) Steel
A) Concrete
B) Brick
C) Glass wool
D) Steel
What is the main purpose of aggregates in concrete?**
A) Increase volume
A) Increase volume
B) Enhance color
C) Improve compressive strength
(D) Reduce cost
If concrete has medium workability, its slump value is approximately:**
A) 25–50 mm
B) 50–100 mm
C) 75–150 mm
A) 25–50 mm
B) 50–100 mm
C) 75–150 mm
D) 100–150 mm
Which test checks the soundness of cement?**
A) Briquette test
B) Briquette test
C) Turbidity meter
D) Vicat’s apparatus
Which material is used as a waterproofing membrane for below-ground structures?**
A) Bitumen
B) Concrete
C) Gypsum
D) Aluminum
A) Bitumen
B) Concrete
C) Gypsum
C
D) Aluminum
psum in construction is primarily used for:**
A) Producing cement
B) Flooring
C) Making plaster of Paris
D) Waterproofing
Answer: C) Making plaster of P
A) Producing cement
B) Flooring
C) Making plaster of Paris
D) Waterproofing
Autoclaved aerated concrete (AAC) contains which additional component not found in ordinary concrete?**
A) Glass wool
B) Bitumen
C) Aluminium powder
D) Fiberglass
A) Glass wool
B) Bitumen
C) Aluminium powder
D) Fiberglass
What is the typical shrinkage strain of ordinary concrete?**
What is the typical shrinkage strain of ordinary concrete?**
A) 0.1–0.3 mm/m
B) 0.3–0.6 mm/m
C) 0.6–1.2 mm/m
D) 1.2–2.0 mm/m
What is the typical shrinkage strain of ordinary concrete?**
A) 0.1–0.3 mm/m
B) 0.3–0.6 mm/m
C) 0.6–1.2 mm/m
D) 1.2–2.0 mm/m
