ball test

[′bȯl ‚test] (civil engineering) In a drain, a test for freedom from obstruction and for circularity in which a ball (less than the diameter of the drain by a specified amount) is rolled through the drain.

ball test

1. See Kelly ball test. 2. In a drain, a test for freedom from obstruction and for circularity; a ball (less than the diameter of the drain by a specified amount) is rolled through the drain.

Kelly ball test, ball test

A test which uses a device consisting of a metal plunger (having a hemispherical bottom) which is guided by side stirrups; indicates the consistency of fresh concrete by the depth of penetration when the plunger drops.

单词	ball test
释义	ball test ball test [′bȯl ‚test] (civil engineering) In a drain, a test for freedom from obstruction and for circularity in which a ball (less than the diameter of the drain by a specified amount) is rolled through the drain. ball test 1. See Kelly ball test. 2. In a drain, a test for freedom from obstruction and for circularity; a ball (less than the diameter of the drain by a specified amount) is rolled through the drain. Kelly ball test, ball test A test which uses a device consisting of a metal plunger (having a hemispherical bottom) which is guided by side stirrups; indicates the consistency of fresh concrete by the depth of penetration when the plunger drops.
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