Electrical level 3 final exam questions with correct answers RATED A+

Electrical level 3 finalexam questions n n n n n




with correct answers | RATED A+n n n n n n




What type of transformer 120 V center underground 240 V - CORRECT ANSWER -Wye
n n n n n n n n n n n n n




Increase power factor decrease electricity by large inductive load - CORRECT ANSWER -capacitor
n n n n n n n n n n n n




Coil winding on load is called - CORRECT ANSWER -secondary
n n n n n n n n n




Minimum fire rating for transformer - CORRECT ANSWER -3 hours
n n n n n n n n n




Synchronize speed of induction, determined by - CORRECT ANSWER -frequency
n n n n n n n n n




One of three factors cause three phases to rotate - CORRECT ANSWER -voltage are 120° out of phase
n n n n n n n n n n n n n n n n n




feeder serving motor 5, 10, 15 FLA minimum ampacity - CORRECT ANSWER -33.75
n n n n n n n n n n n n




maximum recommended dual element fuse three phase 4 hp 460 V 52 FLA - CORRECT ANSWER
n n n n n n n n n n n n n n n




-100A fuse n




Effective power factor correction method - CORRECT ANSWER -capacitors installation
n n n n n n n n n




EOL is - CORRECT ANSWER -End of line resistor
n n n n n n n n




Three initiation devices for fire alarm - CORRECT ANSWER -smoke, heat, beam detectors
n n n n n n n n n n n n