2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◍ Before concrete placement, reinforcing bars shall be free of.....
Answer: Mud, oil, or other non-metallic coatings.
◍ The purpose of the guide bar or bull's eye level is to ensure that caps remain
perpendicular to the axis of the cylinder within 0.5 degrees. True or False?.
Answer: True
◍ The formula, R = PL/bd², measures the modulus of rupture at which
location?.
Answer: In the tension surface within the middle third of the span length
◍ During final curing, cylinders of 6000 psi concrete shall be stored within a
temperature range of ______..
Answer: 73.5 +/- 3.5 degrees F
◍ During initial curing, cylinders of 6000psi concrete shall be stored within a
temperature of _______?.
Answer: 68 F to 78 F
◍ Construction joints in floors shall be located in the _____of spans of slabs,
beams and girders..
Answer: Middle third
◍ What is the minimum concrete coverage required for #7 vertical bars in a 10
inch thick retaining wall on the dirt side?.
Answer: 2 inches
◍ When qualifying unbonded caps, strengths below ____% of the average
obtained from bonded caps is considered unacceptable..
, Answer: 98%
◍ The calibration of the testing machines must be verified under four
conditions; within _____ months of the last calibration, upon original
installation or after _____, after making _____ or adjustments, and
whenever there is a reason to suspect the ____ of the indicated loads..
Answer: 13, relocation, repairs, accuracy
◍ How often is shotcrete sampled?.
Answer: Every 50 cubic yards.
◍ To determine the the average width, depth and line of fracture location of
the specimen, you should take _____ measurements across each _____..
Answer: Three, dimension
◍ The _____ and _____ of the spherically seat bearing block must be designed
so the steel in the contact area doesn't permanently deform when loaded to
the capacity of the testing machine..
Answer: Ball, socket
◍ For investigation of low strength test results, strength of concrete shall be
considered satisfactory if test results of cores drilled from area in question
meet which of the following requirements?.
Answer: The average of 3 cores is equal to 85%of f'c with no single core
less than 75%f'c
◍ The melting pot for the sulfur mortar must be located under a _____ with an
_____ for _____..
Answer: Hood, exhaust fan, ventillation
◍ In joist construction what is the minimum width of ribs?.
Answer: 4 inches
◍ In the United States, the standard mass of a bad of Portland cement is ____?.
Answer: 94 lbs
◍ When qualification tests of unbonded pads are required, they are performed
by the _____ or _____..