100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
ACI (AMERICAN CONCRETE INSTITUTE) GRADE 1 WRITTEN EXAM 2024 STUDY GUIDE ACTUAL EXAM 200 QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) ALREADY GRADED A $24.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. ACI GRADE 1 WRITTEN
  4.  
  5. ACI GRADE 1 WRITTEN

Exam (elaborations)

ACI (AMERICAN CONCRETE INSTITUTE) GRADE 1 WRITTEN EXAM 2024 STUDY GUIDE ACTUAL EXAM 200 QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) ALREADY GRADED A

 0 purchase
  • Course
  • ACI GRADE 1 WRITTEN
  • Institution
  • ACI GRADE 1 WRITTEN

ACI (AMERICAN CONCRETE INSTITUTE) GRADE 1 WRITTEN EXAM 2024 STUDY GUIDE ACTUAL EXAM 200 QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) ALREADY GRADED A

Preview 4 out of 50  pages

Document information

  • August 23, 2024
  • 50
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

Written for

  • ACI GRADE 1 WRITTEN
  • ACI GRADE 1 WRITTEN

Seller

avatar-seller
QUANKADA

Reviews received

Content preview

Page |1


ACI (AMERICAN CONCRETE INSTITUTE) GRADE 1
WRITTEN EXAM 2024 STUDY GUIDE ACTUAL EXAM 200
QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) ALREADY GRADED A




What method of consolidation must be used when the
slump is greater than 75 mm (3 in) (C138/C138M -
17a, Density (unit weight), yields, and air content
(gravimetric) of concrete) - ....ANSWER >>>>Rodding

What method of consolidation must be used when the
slump is less than 1 in. (25 mm]? (C138/C138M - 17a,
Density (unit weight), yields, and air content
(gravimetric) of concrete) - ....ANSWER >>>>Vibration

If rodding is the method of consolidation being used,
the measure must be filled in how many layers?
(C138/C138M - 17a, Density (unit weight), yields, and
air content (gravimetric) of concrete) - ....ANSWER
>>>>3

, Page |2




For a measure of 0.5 ft^3 [14 L], what is the required
number of strokes of the tamping rod for
consolidation of each layer? (C138/C138M - 17a,
Density (unit weight), yields, and air content
(gravimetric) of concrete) - ....ANSWER >>>>25

When rodding the middle and the top layers, the
tamping rod should penetrate into the layer below
approximately ___. (C138/C138M - 17a, Density (unit
weight), yields, and air content (gravimetric) of
concrete) - ....ANSWER >>>>25 mm (1 in)

If vibration is the method of consolidation, the
measure must be filled in _____ approximately equal
layers. (C138/C138M - 17a, Density (unit weight),
yields, and air content (gravimetric) of concrete) -
....ANSWER >>>>2

If, after consolidation of the final layer, the concrete
level is 1/2 in. (13 mm) above the top of the measure,
what should be done? (C138/C138M - 17a, Density
(unit weight), yields, and air content (gravimetric) of
concrete) - ....ANSWER >>>>Remove a representative
portion of the excess concrete with a trowel or scoop.

, Page |3




After consolidation of the final layer, an excess of
concrete ____ above the top of the measure is
considered optimum. (C138/C138M - 17a, Density
(unit weight), yields, and air content (gravimetric) of
concrete) - ....ANSWER >>>>3 mm (1/8 in)

After completing the strike-off procedure, what must
be done before weighing the measure and sample?
(C138/C138M - 17a, Density (unit weight), yields, and
air content (gravimetric) of concrete) - ....ANSWER
>>>>Clean off any excess concrete

V = 0.01427 m3
Mass of empty = 8.89 kg
Mass with sample = 41.78 kg
Want D (21) (C138/C138M - 17a, Density (unit weight),
yields, and air content (gravimetric) of concrete) -
....ANSWER >>>>2305 kg/m3 (143.8 lb/ft3)

Mass with sample: 41.78 kg
Minus mass without sample: 8.89 kg
Mass of sample: 32.89 kg

D= M/V

, Page |4



V = 0.01427 m3

Use density from earlier question to solve
(C138/C138M - 17a, Density (unit weight), yields, and
air content (gravimetric) of concrete) (22) - ....ANSWER
>>>>Yield per batch 189.8 ft3
Y = M/D

Want relative yield (C138/C138M - 17a, Density (unit
weight), yields, and air content (gravimetric) of
concrete) (23) - ....ANSWER >>>>1.00

Y/Yd
189.9 ft3/189 ft3

Calc did content from D in earlier question
(C138/C138M - 17a, Density (unit weight), yields, and
air content (gravimetric) of concrete) (24) - ....ANSWER
>>>>5.0 %
(151.4-143.8)/151.4 * 100 = 5.0%

The pressure method of determining air content can
be used on concrete containing _____ _____
aggregate. (C231/C231M - 17a, air content of freshly

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller QUANKADA. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $24.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

66902 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$24.99
  • (0)
Add to cart
Added