DEA Design of core type transformer

What is the advantage of using a core-type transformer over a shell-type transformer?

• a) Lower cost

• b) Higher efficiency

• c) Better cooling

• d) Smaller size

Which material is commonly used for the core of a core-type transformer?

• a) Copper

• b) Steel

• c) Aluminum

• d) Brass

What is the typical shape of the core in a core type transformer?

• a) Round

• b) Square

• c) Rectangular

• d) Circular

What is the purpose of the core in a core type transformer?

• a) To support the windings

• b) To provide a low reluctance path for the magnetic flux

• c) To protect the windings from damage

• d) To reduce the size of the transformer

What is the typical number of limbs in a core type transformer?

• a) One

• b) Two

• c) Three

• d) Four

What is the primary winding in a core type transformer typically wound around?

• a) The core

• b) The secondary winding

• c) An insulating material

• d) A copper wire

What is the purpose of the insulation between the primary and secondary windings in a core type transformer?

• a) To reduce losses

• b) To increase efficiency

• c) To prevent short circuits

• d) To reduce the size of the transformer

What is the typical power rating for a core type transformer?

• a) Less than 1 kVA

• b) 1 kVA to 10 kVA

• c) 10 kVA to 100 kVA

• d) More than 100 kVA

What is the typical frequency range for a core type transformer?

• a) DC

• b) 50 Hz to 60 Hz

• c) 1 kHz to 10 kHz

• d) More than 10 kHz

What is the typical efficiency of a core type transformer?

• a) Less than 50%

• b) 50% to 75%

• c) 75% to 90%

• d) More than 90%