Select the best answer for the question.
5. How much horsepower can a one-horsepower motor with a service factor of 1.2 safely produce?
A. 1.15 HP
B. 10 HP
C. 0.9 HP
D. 1.2 HP
Answer (1)
Multiply the motor's horsepower by its service factor.
Calculate: 1 H P × 1.2 = 1.2 H P .
The safe horsepower output is 1.2 HP.
The final answer is 1.2 H P .
Explanation
Understanding the Problem The problem states that a one-horsepower motor has a service factor of 1.2. The service factor indicates how much a motor can exceed its rated horsepower without experiencing damage. To find the safe horsepower output, we need to multiply the motor's horsepower by its service factor.
Calculating Safe Horsepower Output To calculate the safe horsepower output, we multiply the rated horsepower (1 HP) by the service factor (1.2): 1 HP × 1.2 = 1.2 HP This means the motor can safely produce 1.2 horsepower.
Final Answer Therefore, the one-horsepower motor with a service factor of 1.2 can safely produce 1.2 HP.
Examples
In real-world applications, understanding a motor's service factor is crucial for selecting the right motor for a specific task. For instance, if you need a motor to consistently handle loads slightly above 1 horsepower, a 1 HP motor with a service factor of 1.2 would be a suitable choice. This ensures the motor operates safely and reliably without overheating or premature wear. Knowing this allows engineers and technicians to optimize motor performance and extend its lifespan, preventing costly downtime and repairs.
