Question

directions: match each item to the statement or sentence listed below. column i 1. type of ladder that is self - supporting and is used primarily indoors for low and intermediate heights. 2. type of ladder used primarily outdoors where greater heights must be reached. 3. holds the stepladder open and prevents it from accidentally closing. 4. a portable metal frame designed specifically to support scaffolding. 5. metal devices that slide up and down on a wood or aluminum post to support horizontal planks used on a scaffold. 6. a rope intended to prevent a worker from falling more than 6 feet. 7. rungs or steps attached to vertical supports. 8. can be attached to the frame of a structure to allow scaffolding to form a platform. 9. a common type of folding ladder that has flattened steps instead of rungs. 10. bolted to the top of an extension ladder to steady the top and prevent slipping. 11. a raised platform that is used for working at heights safely with both hands free. 12. horizontal parts of a scaffold used because of their quality and extra strength. 13. straight ladder that can be adjusted to various lengths. column ii a. trestle b. brackets c. ladder stabilizer d. laminated wood planks e. folding f. rails g. straight h. scaffold i. spreader j. extension ladder k. articulated l. lifeline m. stepladder n. pump jacks (continued on next page) carpentry & building construction instructor resource guide copyright © glencoe/mcgraw - hill 221

Explanation:

1. A step - ladder is self - supporting and used indoors for low to intermediate heights.
2. An extension ladder is used outdoors for greater heights.
3. A spreader holds a stepladder open.
4. Scaffold is a portable metal frame for supporting scaffolding.
5. Brackets slide up and down to support horizontal planks on a scaffold.
6. A lifeline prevents a worker from falling more than 6 feet.
7. Rails are rungs or steps attached to vertical supports.
8. Scaffold can be attached to a structure to form a platform.
9. A folding ladder has flattened steps instead of rungs.
10. A ladder stabilizer is bolted to the top of an extension ladder.
11. A scaffold is a raised platform for working at heights with free hands.
12. Laminated wood planks are horizontal parts of a scaffold for strength.
13. An extension ladder is a straight ladder adjustable in length.

Answer:

1. m. stepladder
2. j. extension ladder
3. i. spreader
4. h. scaffold
5. b. brackets
6. l. lifeline
7. f. rails
8. h. scaffold
9. e. folding
10. c. ladder stabilizer
11. h. scaffold
12. d. laminated wood planks
13. j. extension ladder