ac/dc saca Study Guide Exam and
Answers.
How many degrees apart are the phases of a balanced three phase system? - Answer 120
What does an electrical schematic not show? - Answer Physical connections
Resistance is measured in units of? - Answer Ohms
What is the power formula? - Answer P=IxE
What is power measured in? - Answer Watts
What is the function of an inductor? - Answer It opposes a change in current flow
A coil is a_________? - Answer Output
Which of the following is an output? - Answer Solenoid
What is the formula to solve for current? - Answer I=E/R
When troubleshooting a circuit, what can be said if the total resistance of the parallel circuit
does not change when a branch is removed? - Answer An open exists in the removed branch
The unit for electromotive force (emf) is? - Answer Volt
What is the relationship of the applied voltage across two electrical components in parallel with
each other? - Answer They are the same
Which feature of a ground circuit creates a safe path for current? - Answer Low resistance to
earth
An ohmmeter is reading total circuit resistance reads 0 ohms when all branches are connected
and reads 200 ohms when a branch is disconnected. What condition exists? - Answer There
is a short in the disconnected branch
Answers.
How many degrees apart are the phases of a balanced three phase system? - Answer 120
What does an electrical schematic not show? - Answer Physical connections
Resistance is measured in units of? - Answer Ohms
What is the power formula? - Answer P=IxE
What is power measured in? - Answer Watts
What is the function of an inductor? - Answer It opposes a change in current flow
A coil is a_________? - Answer Output
Which of the following is an output? - Answer Solenoid
What is the formula to solve for current? - Answer I=E/R
When troubleshooting a circuit, what can be said if the total resistance of the parallel circuit
does not change when a branch is removed? - Answer An open exists in the removed branch
The unit for electromotive force (emf) is? - Answer Volt
What is the relationship of the applied voltage across two electrical components in parallel with
each other? - Answer They are the same
Which feature of a ground circuit creates a safe path for current? - Answer Low resistance to
earth
An ohmmeter is reading total circuit resistance reads 0 ohms when all branches are connected
and reads 200 ohms when a branch is disconnected. What condition exists? - Answer There
is a short in the disconnected branch
