Question

1. a pipe clamp has ______.

a. a length of pipe for a spine
b. exceptionally large jaws
c. two fixed jaws
d. rounded, toothed jaws for gripping pipe

1. the tool shown in the figure is a ______.

a. bastard file
b. wood shaver
c. rasp
d. fine rasp

1. the safest kind of utility knife is one with a ______.

a. plastic blade
b. replaceable blade
c. folding blade
d. self - retracting blade

1. when compared to round and square shovels, a traditional spade ______.

a. has heavily curved sides
b. has a steel handle
c. is flatter and without curved sides
d. is much wider and longer

Explanation:

Question 17

A pipe clamp is designed to grip pipes, so it has rounded, toothed jaws for that purpose. Option a is incorrect as the spine isn't a length of pipe. Option b is wrong as jaws aren't exceptionally large. Option c is incorrect as jaws aren't fixed.

The tool shown (with the given figure) is a bastard file. A wood shaver, rasp, and fine rasp have different structures. A bastard file has a specific tooth pattern and shape suitable for general filing, matching the tool's appearance.

The safest utility knife has a self - retracting blade as it retracts automatically, reducing injury risk. A plastic blade isn't practical for cutting, a replaceable blade doesn't add safety, and a folding blade can still be exposed when open.

Answer:

d. rounded, toothed jaws for gripping pipe

Question 18