NEW
Font size
WorksheetsConcrete Technology MCQ Quiz
Total questions: 20
Worksheet time: 10mins
Which compound in cement is responsible for early strength?
C₃S
C₂S
C₃A
C₄AF
Which compound in cement is responsible for later strength?
C₃S
C₂S
C₃A
C₄AF
Which compound generates less heat during hydration?
C₃S
C₂S
C₃A
C₄AF
Which product of cement hydration contributes most to strength?
Calcium Hydroxide
Calcium Silicate Hydrate
Calcium Aluminate Hydrate
None of the above
What is the typical range of lime (CaO) content in OPC?
20-30%
40-50%
60-67%
70-80%
What is the minimum fineness of OPC as per IS code?
150 m²/kg
200 m²/kg
225 m²/kg
300 m²/kg
What is the maximum expansion allowed in the soundness test for OPC?
5 mm
10 mm
15 mm
20 mm
What is the initial setting time requirement for OPC?
≥15 minutes
≥30 minutes
≥45 minutes
≥60 minutes
What is the main pozzolanic material in PPC?
Lime
Fly ash
Gypsum
Silica
What is the apparatus used for determining the normal consistency of cement?
Blaine Apparatus
Vicat Apparatus
Le Chatelier Apparatus
Compression Testing Machine
How is fineness of cement typically measured?
By using a sieve analysis
Using a standard plunger
Measuring expansion in water
By testing setting time
What is the typical water-cement ratio used for determining consistency?
0.4
0.5
Varies based on penetration depth
None of the above
The Le Chatelier apparatus is used to determine which property of cement?
Strength
Fineness
Soundness
Setting time
What is the strength requirement for 43-grade OPC after 28 days?
33 MPa
43 MPa
53 MPa
None of the above
What is the ideal environment for storing cement?
Dry and ventilated
Wet and covered
Cool and humid
Exposed to air
How are compressive strength tests for cement conducted?
Using 1:2 cement-sand ratio
Using 1:3 cement-sand ratio
Using pure cement paste
Using pure sand
How long is the curing period for 28-day compressive strength testing?
7 days
14 days
21 days
28 days
What is used to measure the setting time of cement?
Le Chatelier Molds
Vicat Apparatus
Blaine Apparatus
Compression Testing Machine
What is the primary function of gypsum in cement?
Enhance strength
Prevent flash setting
Reduce setting time
Improve soundness
Which IS code specifies the requirements for OPC?
IS 4031
IS 8112
IS 12269
IS 456
