CONCRETE_BATCH_PLANT_OPERATOR_EXAMINATION_TEST_2026_FULL_QUESTIONS

CONCRETE BATCH PLANT OPERATOR
EXAMINATION TEST 2026 FULL QUESTIONS
AND CORRECT ANSWERS


◉With how many strokes should you rod each layer of concrete placed
in the compressive strength TEST MOLD?


• 10
• 15
• 20
• 25 . Answer: 25


◉(True or False) The major factor controlling the durability of concrete
is its strength.


• True
• False . Answer: True


◉How is laitance produced in concrete?


• Water collects under the surface of the CEMENT

, • Cement is hydrated with saltwater
• Cement is hydrated with minimum water
• Cement is hydrated with excess water . Answer: Cement is hydrated
with excess water


◉What percent do water reducing admixtures usually reduce the
required water content for a concrete mixture?


• 1% to 2% only
• 1% to 3%
• 3% to 7%
• 5% to 10% . Answer: 5% to 10%


◉Concrete is denser and stronger when which condition is met?


• All voids are filled
• Voids are large and unfilled
• Aggregate particles are not solidly BONDED
• Aggregate particles are not coated with a cement-water paste .
Answer: All voids are filled


◉Before using warehouse-packed cement, what should you do to make
it free of lumps?