The rod cone Study guides, Class notes & Summaries

For concrete with aggregates less than 3 inches, the thermometer must remain in the fresh concrete sample a minimum of 5 minutes or until the temperature reading stabilizes. (True or False) - AnswerFalse The temperature measuring device must be accurate to within 0.1 degrees. (True or False) - AnswerFalse The temperature measuring device shall have a capacity of measuring temperature of freshly mixed concrete throughout a range of ______ to ______ Fahrenheit ( - AnswerA composite sample is n...

3 steps of color discrimination: - - detection ( detect wavelength) - discrimination (tell the difference between different wavelengths) - appearance (assign perceived colors to lights/objects and have them be stable over time/across different conditions) S-cone - "blue" -- cone that detects short wavelengths M-cone - "green" -- cone that detects medium wavelengths L-cone - "red" -- cone that detects long wavelengths photopic - light intensities that are bright enough to stimulate ...

NICET concrete level 1 questions and answers graded A What is Bulk Density used for? (c29) Determining Mass/volume relationship for conversions in purchase agreements What is the dimensions of plate glass? (C29) 1/4" thick and at least 1" larger than the diameter of the measure What are the requirements for a thermometer? (C1064) has a range of at least 30-120°F and readable to the nearest 1°F When drying aggregate to constant mass, What should the temperature of the oven be? (C29) 230°F...

Praxis 5282 Latest Update with Verified Solutions Convergence of Eyes Eyes rotate inwards to look at an object as it moves closer to your face. Developmental Scales Relates to a specific stage of development. Cognitivism Internal processes and connections involved in learning. Behaviorism Conditioning and interactions with the environment. Constructivism Construct understanding and knowledge of the world, through experience. Direct Relationship Two variables do the same thing. If one increa...

The temp. measuring device shall be capable of accurately measuring the temp. of freshly mixed concrete to ____ throughout a range of ____. - ANSWER 1 Degree F, 30-120 Degrees F A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine the temp. T or F? - ANSWER False C172/C172M covers sampling from five type of equipment which are___, ___, ___, ___, & ____? - ANSWER revolving drum, stationary, paving, continuous, & open top The mold fo...

The temp. measuring device shall be capable of accurately measuring the temp. of freshly mixed concrete to ____ throughout a range of ____. ☑: 1 Degree F, 30-120 Degrees F A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine the temp. T or F? ☑: False C172/C172M covers sampling from five type of equipment which are___, ___, ___, ___, & ____? ☑: revolving drum, stationary, paving, continuous, & open top The mold for making the...

Form liner correct answers Material for lining the inside face of a form especially selected to impart a smooth ot patterned finish to the concrete surface Release agent correct answers Oil or silicone for preventing the bonding of concrete to a surface, also called parting compound Bulkhead correct answers A partition closing the end of a form or preventing the passage of newly place concrete at a construction joint Keyway correct answers A longitudinal groove or channel formed in a co...

ACI Certification Exam Questions With Correct Answers Latest Updated 2024/2025 | Scored A+. When the concrete contains large aggregate, the testing technician should wet-sieve the sample before making unit weight tests for use in yield computations.Answer - False 4. T/F: Samples smaller than 28L (1 .) are allowed on routine air content, temperature, and slump tests.Answer - True 7. How do you regulate the rate of discharge of the batch from the revolving truck drum mixer or agitator?Answe...

ACI CONCRETE FIELD TESTING TECHNICIAN EXAM QUESTIONS AND ANSWERS LATEST UPDATED 2024/2025 | RATED A+. The temperature measuring device shall have a capacity of measuring temperature of freshly mixed concrete to +- _____ degrees F [+- _____ C] throughout a range of _____. - Correct Answer - 1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C] The temperature measuring device shall be calibrated _____, or whenever there is a question of _____. - Correct Answer - Annually, accuracy The temp...

The temp. measuring device shall be capable of accurately measuring the temp. of freshly mixed concrete to ____ throughout a range of ____. Answer 1 Degree F, 30-120 Degrees F A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine the temp. T or F? Answer False C172/C172M covers sampling from five type of equipment which are___, ___, ___, ___, & ____? Answer revolving drum, stationary, paving, continuous, & open top The mold for maki...