As shown in the illustration, which of the...

Question 1 / 2066636eed28f7522a1c51db57

Question 1 of 2066636eed28f7522a1c51db57

As shown in the illustration, which of the following pieces of equipment is supplied with a circuit breaker providing both overload and short-circuit protection? Illustration EL-0165

Back

Question 1 of 20

66636eed28f7522a1c51db57

As shown in the illustration, which of the following pieces of equipment is supplied with a circuit breaker providing both overload and short-circuit protection? Illustration EL-0165

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Difference between overload protection and short-circuit protection in motor circuits • How circuit breakers with dual ratings (e.g., AT / AF) are shown on one‑line diagrams • The role of motor starters/overload relays (LVP/LVR) versus breakers in protecting equipment

💭 Think About

• For each piece of equipment, trace its feeder from the bus and note every protective device shown on that branch. Which branch shows only a breaker symbol and no separate overload relay or starter? • Ask yourself: on which load must the breaker itself provide both overload and short‑circuit protection because there is no other device that could provide overload protection? • Compare the labels (e.g., 75AT/100AF, 150AT/225AF, 60AT/100AF, 40AT/100AF). How does this information help you identify which breaker is intended to carry and trip at the full‑load current of the equipment?

✅ Before You Answer

• Verify which loads have an LVP or LVR motor starter box indicated between the breaker and the motor, and which load does not. • Confirm that the device labeled with AT/AF on the branch you pick is the only protective device for that equipment (no separate overload relay shown). • Make sure the equipment you choose is the one whose breaker rating (AT) most closely matches the power rating (HP or kW) shown for that load, supporting that it handles both overload and short‑circuit protection.

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed

Question 1 of 20

As shown in the illustration, which of the following pieces of equipment is supplied with a circuit breaker providing both overload and short-circuit protection? Illustration EL-0165

Cargo Oil Transfer Pump No.1

S.W. Cooling Circ. Pump No.1

Sewage Treatment Plant

Lube Oil Service Pump No.1

Loading interactive features...

Question 1 / 2066636eed28f7522a1c51db57

Question 1 of 2066636eed28f7522a1c51db57

As shown in the illustration, which of the following pieces of equipment is supplied with a circuit breaker providing both overload and short-circuit protection? Illustration EL-0165

Back

Question 1 of 20

66636eed28f7522a1c51db57

As shown in the illustration, which of the following pieces of equipment is supplied with a circuit breaker providing both overload and short-circuit protection? Illustration EL-0165

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed