The ball float shown in the illustration is...

Question 1 of 270705eccef9dbacbc34ba4d45e14

The ball float shown in the illustration is 7 inches in diameter, with an effective float arm of 31.5 inches and floats in a liquid with a specific gravity of 0.95. What is the operating torque of the system? See illustration GS-0158.

Back

Question 1 of 27070

No Illustration

This question does not have an illustration

🔍 Key Concepts

• Use the chart in illustration GS-0158 to find the available operating force for a 7-inch ball at a specific gravity of 0.95 • Convert that operating force into torque by multiplying by the effective float arm length (31.5 inches):
$T = F \times L$ • Understand that torque units here are inch-pounds, so keep force in pounds and arm in inches

💭 Think About

• On the chart, which curve corresponds to a 7-inch diameter ball, and where does it intersect the horizontal line for 0.95 specific gravity? • After you read the approximate available operating force from the x-axis, what torque do you get when you multiply that force by 31.5 inches? • Compare your calculated torque with the choices given; which option is closest to your computed value?

✅ Before You Answer

• Be sure you are using the 7-inch diameter curve, not 6-inch or 8-inch • Make sure you read the available operating force from the x-axis, not from the vertical axis • Confirm your final torque uses inch-pounds: force (lb) × 31.5 in, with no unit conversions needed