Skip to Content
Home └CIVIL WORK TESTING └CUBE TEST

CIVIL WORK TESTING

0 %

Completed

Course content

CUBE TEST

10 XP
Prev Next
Fullscreen Share
Rating
0 0

There are no comments for now.

Join this Course
to be the first to leave a comment.

1. Why is a concrete cube test done on site?
B) To check compressive strength of concrete A) To check steel weight C) To check brick quality D) To check shuttering alignment
2. 2. What is the standard cube size commonly used in Indian practice?
A) 100 × 100 × 100 mm B) 120 × 120 × 120 mm C) 150 × 150 × 150 mm D) 200 × 200 × 200 mm
3. How many specimens are made for one sample for 28-day testing?
1 2 3 6
4. The test result of one sample is taken as:
) Highest of 3 cubes ) Lowest of 3 cubes Average of 3 cubes Average of 2 cubes only
5. If the individual variation of cube strengths is more than how much of the average, the sample result is invalid?
±5% ±10% ±15% ±20%
6. Which age of cube strength is the main basis for acceptance or rejection of concrete?
3 days 7 days 14 days 28 days
7. After casting, site cubes are generally kept in moulds for about:
6 hours 12 hours 24 hours 72 hours
8. During the first 24 hours on site, cubes should be kept:
In direct sunlight Under damp matting or sacks, free from vibration In dry storage Near a heater
9. After demoulding, field cubes should be stored in:
Sand only Clean water Diesel tank ) Open air
10. Compressive strength of a concrete cube is calculated as:
Load × area Load ÷ area Area ÷ load Load ÷ volume
11. If cube results are doubtful and the in-situ concrete must be checked, which test is commonly referred to in IS 456?
Soundness test Slump test only Core test Sieve analysis
12. In IS 456, how many cores must be tested at minimum when a core test is done?
1 2 3 5
Additional Resources
Join this Course to access resources