Chapter 3 Tools and Equipment 49 Copyright Goodheart-Willcox Co., Inc. 4. What tool is used to mark long lines on footings or concrete for identifying locations of walls or other structures? A. Retractable steel tape B. Folding rule C. Sled runner D. Chalk box 5. A mason uses a _____ to check if a wall is plumb or level. A. brick jointer B. mason’s level C. sled runner D. folding rule 6. True or False? A rotary laser level can be used to set elevations of footings. 7. The _____ is a small device that has a hammering effect when compacting material. A. hand tamper B. tamping rammer compactor C. vibratory plate compactor D. packer 8. True or False? A standard track driven power buggy will carry 22 cu ft of material. 9. True or False? Most tools used in concrete masonry are designed for use in finishing horizontal concrete surfaces. 10. _____ are used to prepare concrete surfaces for troweling. A. Hand tampers B. Bull floats C. Concrete brooms D. Hand floats Apply and Analyze 1. When using mortar to fill voids in joints between brick, one tool is used to hold mortar and the other is used for pushing mortar into the void in the joint. What are the two tools used to perform this task? 2. What is the difference between a high-frequency concrete vibrator and a backpack concrete vibrator? Critical Thinking Questions 1. The power trowel is wearing out, and the owner of the company has asked you to research different manufacturers and models to aid in purchasing a new power trowel. What evaluation criteria should be considered when researching a new machine? 2. If you are a foreman of a layout crew, what items do you need to discuss and train new employees on before allowing them to operate the rotary laser level? Activities 1. (MATH) Find several concrete masonry tool kits online or in a hardware store. Prepare a chart that compares the prices of each tool, the number of tools, and then the overall price of each kit. 2. (ELA) Research safety precautions to be taken when using a masonry saw. Prepare an oral presentation to give in class.