EEI TECH EEI Tech Reasoning 3

Question 1

Water flows through a pipe that narrows in the middle. As the pipe narrows, the water's speed will:

Accepted Answer

Increase

Answer

Decrease

Answer

Stop

Answer

Stay the same

Question 2

A worker uses a wrench to loosen a bolt. Using a longer wrench handle will:

Accepted Answer

Require less force

Answer

Require more force

Answer

Make no difference

Answer

Break the bolt faster

Question 3

Three resistors of 2 ohms each are connected in series. What is the total resistance?

Accepted Answer

6 ohms

Answer

2 ohms

Answer

0.67 ohms

Answer

8 ohms

Question 4

Which of these best completes the analogy: Voltage is to electricity as ____ is to water flow.

Accepted Answer

Pressure

Answer

Pipe

Answer

Bucket

Answer

Valve

Question 5

A 100-pound load is lifted using a pulley system with a mechanical advantage of 4. What input force is required (ignoring friction)?

Accepted Answer

25 pounds

Answer

400 pounds

Answer

50 pounds

Answer

100 pounds

Question 6

If it takes 3 machines 6 hours to complete a job, how long would 6 machines take at the same rate?

Accepted Answer

3 hours

Answer

12 hours

Answer

6 hours

Answer

9 hours

Question 7

A thermostat opens a valve when temperature rises. This is an example of:

Accepted Answer

Feedback control

Answer

Manual control

Answer

Random operation

Answer

Mechanical failure