High School Placement Test (HSPT) Practice Test

If a machine has manual controls, then the machine is:

1. self-acting

2. simple

3. hand operated

4. handmade

The correct answer is: hand operated

The assertion that a machine with manual controls is hand operated is accurate because manual controls require a person to directly intervene and manipulate the machine. This operation is reliant on human effort to perform the functions, such as starting, stopping, or adjusting the machine's settings. The term "hand operated" specifically implies that the operations are performed using human hands, which directly corresponds with the requirement of manual controls. In contrast, the notion of a machine being self-acting refers to its ability to operate automatically without human intervention, which does not apply to machines requiring manual control. The term "simple" might suggest basic functionality, but it does not capture the essence of how the machine is operated. The designation "handmade" implies that the machine itself was constructed by hand rather than through industrial or mechanical processes, which is unrelated to its operation through manual controls. Therefore, "hand operated" is the most fitting description of a machine that necessitates manual controls.