Worksheets10440 - Concrete Technology: MCQ Practice Questions (Unit V)
Total questions: 20
Worksheet time: 10mins
Which of the following is the most accurate method of batching concrete ingredients?
Volume batching
Weight batching
Random batching
Hand batching
The minimum mixing time required for concrete in a drum-type mixer is generally:
30 seconds
60 seconds
90 seconds
120 seconds
Which of the following methods is NOT a common way of transporting concrete?
Pumping
Belt conveyor
Bucket and crane
Chute and trolley
The main purpose of compaction in concreting is to:
Remove air voids
Reduce permeability
Increase strength
All of the above
Which curing method is most effective in hot weather conditions?
Sprinkling with water
Steam curing
Ponding
Curing compounds
The minimum curing period recommended for concrete as per IS 456:2000 is:
3 days
7 days
14 days
28 days
Which of the following is NOT a material used for formwork?
Timber
Steel
Glass
Aluminum
The formwork removal time for beams as per IS 456:2000 is typically:
3 days
7 days
14 days
21 days
Which type of formwork is best suited for repetitive use in large projects?
Timber formwork
Plywood formwork
Aluminum formwork
Cardboard formwork
Which of the following is NOT a requirement of good formwork?
It should be strong enough to withstand loads
It should be lightweight
It should be costlier than concrete
It should be reusable
What is the primary advantage of system formwork over conventional formwork?
Higher cost
Faster construction
Lower durability
Only for small projects
Which of the following statements is true about stripping time for slab formwork as per IS 456:2000?
Minimum 3 days
Minimum 7 days
Minimum 14 days
Minimum 21 days
Which of the following is NOT an error in concrete construction?
Excessive water in mix
Improper curing
Correct proportioning of materials
Inadequate compaction
Which test is commonly performed to check the workability of fresh concrete?
Compressive strength test
Slump test
Water absorption test
Flexural strength test
What is the primary reason for performing quality control checks before concreting?
To increase cost
To ensure consistency and durability
To reduce labor effort
To change concrete mix ratio randomly
Which of the following is included in a checklist before concreting?
Checking the formwork alignment
Ensuring proper reinforcement placement
Verifying mix proportion
All of the above
Which IS code provides guidelines for quality control of concrete construction?
IS 383
IS 456
IS 10262
IS 2386
Honeycombing in concrete is caused by:
Excess water in the mix
Poor compaction
High cement content
Proper vibration
Which of the following is a method to improve concrete durability?
Reducing cement content
Increasing water-cement ratio
Proper curing
Using fine aggregates only
The cube test for concrete strength is conducted after how many days for final results?
3 days
7 days
28 days
56 days
