Skip to main content
Self-Test 2
-
What is the lowest amperage at which fatal injury can occur in a human?
-
15 A
-
0.15 A
-
50 mA
-
15 mA
-
If you measure voltage across a switch, what state is it in?
-
Open
-
Closed
-
If you measure correct voltage across a load but the load doesn’t work, what is wrong?
-
There is no power.
-
There is no current.
-
A switch is open.
-
The load has failed.
-
Refer to Figure 1. If you have a reading at point 4, but not at 5, what is the problem?
-
The load has failed.
-
The switch is open.
-
The wiring has failed.
-
The ground has failed.
-
-
Refer to Figure 1. If you have a reading at 5 and zero at 6, what is the problem?
-
The load has failed.
-
The switch is open.
-
The wiring has failed.
-
The ground has failed.
-
What is always the first step when testing for resistance?
-
Check the load.
-
Remove the component.
-
Turn the circuit power on.
-
Turn the circuit power off.
-
What is the best test for checking if a heating element is faulty?
-
Voltage test
-
Continuity test
-
Amperage test
-
They cannot be tested.
-
What will increase when power sources are connected in series?
-
Voltage
-
Current
-
Resistance
-
Continuity