Lab Fundamentals Exam 2 Review

A meter which is connected in line (series) with a load is called a:

• Megger

• Voltmeter

• Ammeter

• Ohmmeter

Proper schematic connection of a voltmeter utilizes:

• Closed arrowheads touching rails

• Open arrowheads touching rails

• Connection indicated by nodes

• A voltmeter may not be placed in a schematic

An ohmmeter is to be connected into a circuit. What must be observed?

• Proper polarity

• Circuit is de-energized

• Meter is set to correct current (AC or DC)

• Meter is set to a high enough voltage setting.

A Voltmeter scale is__________, while an ohmmeter scale is___________.

• Linear, Non-linear

• Non-linear, linear

• Upscale, downscale

• Downscale, upscale

What is the color that will never be first on a resistor's color band?

• Black

• Silver

• Gold

• All of the above

Connecting conductors to the lugs on a circuit overcurrent device is known as:

• Tap

• Splice

• Joint

• Termination

In a split bolt style splice, the copper is placed under the aluminum to minimize:

• Hydrogen deoxidization

• Galvanic corrosion

• Cellular ionization

• Dissipation of electrical smoke

Three resistors are connected in parallel and are as follows. R1=10 Ohms, R2=15 Ohms, R3=85 Ohms. The voltage drop across R3 will be:

• Highest

• Lowest

• Almost zero

• Equal to the other two

Referring to question 12, which resistor would draw the smallest current?

• R1

• R2

• R3

• Current would be the same throughout.

The switching action of a three way switch is exactly the same as that of a single pole- double throw, three position switch.

• True

• False