ACI Concrete Test Questions and Answers | Verified & Updated 2024

ACI Concrete Test Questions and Answers | Verified & Updated 2024 T/F: a liquid in glass thermometer that is certifiably accurate and traceable to the NIST is required to verify concrete thermometers - Answer ️️ -True T/F: The Thermometer must remain in concrete for a minimum of 3 minutes - Answer ️️ - False T/F: ASTM 1064 requires a composite sample - Answer ️️ -False A thermometer can be used to record temperature if b) Thermometer is new B) Verified within one year after there was question of accuracy c) Accurate within 1 degree Fahrenheit d) All of the above e) B and C only - Answer ️️ -e) B and C only Place the thermometer in concrete a minimum of a) 1" b) 2" c) 3" d) 4" - Answer ️️ -c) 3" If aggregate concrete is less than 3" leave thermometer in concrete in test: a) 5 mins b) 10 mins c) Minimum of 2 mins d) maximum of 5 mins e) both c and d - Answer ️️ -e) both c and d How should you press the concrete around the thermometer? - Answer ️️ -Gently