2026 QUESTIONS WITH 100 PERCENT
CORRECT ANSWERS
⩥ Rod each layer ___ times uniformly over the cross section with the
rounded end of the rod. Answer: 25
⩥ The slump mold is filled in _____ layers. Answer: 3 layers
⩥ True or false the slump mold should be in a dry condition before
beginning the test? Answer: False.
⩥ For use in the slump test, the tamping end on both ends of the tamping
rod must be... Answer: Rounded to a hemispherical tip
⩥ True or false the Anterior surface of the slump mold is allowed to
have minor irregularities? Answer: False
⩥ The mold for making the slump test is in the shape of Answer: The
frustum of a cone
⩥ What is the maximum allowable time between obtaining the first and
final portion of the composite samples? Answer: 15 minutes
,⩥ True or false the sample of concrete used for temperature
determination must be rodded 25 time? Answer: False
⩥ What is the required shape of the tamping end of the tamping rod?
Answer: Rounded to a hemispherical tip
⩥ Is the measurement for slump is made from the top of the mold to
what point of the concrete specimen? Answer: The displaced original
center of the top surface of the specimen.
⩥ True or false after the final rodding, the sides of the slump should be
tapped lightly with the tamping rod Answer: False
⩥ Prior to lifting the mold, concrete must be removed from _____.
Answer: the area surrounding the base
⩥ If rodding is the method of consolidation being used, the measure
must be filled in how many layers? Answer: 3
⩥ For a measure of 14 L [0.5 ft^3], what is the required number of
strokes of the tamping rod for consolidation of each layer? Answer: 25
, ⩥ When rodding the middle and top layers, the tamping rod should
penetrate into the layer below approximately how deep Answer: 1" or
25mm
⩥ The end of the temperature sampling portion of the temperature
measuring device is submerged a minimum of _____ into the freshly a
mixed concrete Answer: 3"
⩥ After the temperature of the concrete is read, what is then required?
Answer: Report the temperature
⩥ What must be done to the concrete surrounding the temperature
measuring device after the device is submerged in the fresh concrete?
Answer: Gently press the concrete around the device to prevent air from
impacting the temperature read.
⩥ What must be done to the sample container prior to sampling the
concrete? Answer: Dampen (with water)
⩥ True or false the temperature of concrete may be measured in a
wheelbarrow Answer: True
⩥ The temperature of the concrete is reported to the nearest Answer:
Degree