ICC Soils Cards 1 – 70 Review Exam Questions & Answers.

ICC Soils Cards 1 – 70 Review Exam Questions & Answers. During a sieve analysis procedure, you ___ turn or manipulate fragments in the sample through the sieve by hand. - CORRECT ANSWER cannot When performing a hydrometer test, water shall be maintained at or near ___. - CORRECT ANSWER 68°F The soak time for the sample in solution during a Particle-Size Analysis shall be at least ___. - CORRECT ANSWER 16 hours Hydrometer readings shall be taken from the ___. - CORRECT ANSWER Top of the meniscus Two methods are used to prepare a test for liquid limit (LL), plastic limit (PL), and plasticity index (PI): - CORRECT ANSWER wet, dry For the LL, PL and PI, the method of preparation shall be specified by the requesting authority and if no method is specified, us the ___ method. - CORRECT ANSWER Wet Two methods are used for determining ___: Method A (multipoint) or Method B (one-point). - CORRECT ANSWER Liquid Limit (LL) The method of preparation for the LL shall be specified by the requesting authority and if no method is specified, there is a dispute, or greater precision is required, use Method ____. - CORRECT ANSWER A The LL, PL, and PI are performed on the portion of the soil that passes the ____ sieve. - CORRECT ANSWER No. 40 The water content, in percent, of the soil at the arbitrarily defined boundary between liquid and plastic states is known as the ___. - CORRECT ANSWER Liquid Limit (LL) The water content, in percent, of a soil at the boundary between the plastic and semi-solid states is known as the ___. - CORRECT ANSWER Plastic Limit (PL) The ___ is calculated as the difference between the liquid limit and the plastic limit. The equation is as follows: ___ = __ - ___. - CORRECT ANSWER Plasticity index; PI = LL - PL Originally there were six "limits of consistency" of fine-grained soils. Now LL, PL, and in some references, the shrinkage limit is known as the ____. - CORRECT ANSWER Atterberg limits The Plastic Limit "hand method" requires placing a mass of soil on a glass plate, then - with your fingers - roll it into a ___ in diameter. - CORRECT ANSWER 1/8 inch When sampling from a roadway, obtain at least ___ equal increments selected randomly from the unit being sampled. - CORRECT ANSWER 3 If sampling from a stockpile of fine aggregate, always remove the ___ and sample the material beneath. - CORRECT ANSWER Outer layer The Standard Effort lab max applies to soils that have 30% or less by weight retained on the ___. - CORRECT ANSWER 3/4-inch sieve When performing a proctor test for Procedures/Methods A & B, both require 5 layers with ____ per layer. - CORRECT ANSWER 25 blows Procedure/Method C of the proctor test (ASTM D698 or D1557) requires 5 layers with ___ per layer. - CORRECT ANSWER 56 blows The Standard Effort (ASTM D698) uses a ____ lbf rammer dropped from a height of ___ inches producing a compactive effort of ___ ft-lbf/ft3. - CORRECT ANSWER 5.5; 12; 12,400 For ASTM D698, Procedure A uses a ___ sieve, Procedure B uses a ___ sieve, and Procedure C uses a ___ sieve. - CORRECT ANSWER No. 4; 3/8-inch; 3/4-inch For ASTM D698 or D1557, the required sample mass for Procedures/Methods A and B is approximately ___ and for Procedure/Method C is approximately ___ of *dry* soil. - CORRECT ANSWER 35 lbs; 65 lbs The *field* sample for ASTM D69 or D1557 both should have a *moist* mass of ___ for Procedure/Method A & B, and ___ for Procedure/Method C. - CORRECT ANSWER 50 lbs; 100 lbs The portion of the total sample used in performing the compaction proctor test is referred to as the ___. - CORRECT ANSWER test fraction (finer fraction).