Industrial Electrical System Quiz 1

A dual-element fuse is used to:

• • Operate at a higher voltage.

• • Operate at a higher current.

• • Operate with a temporary overload.

  •  

• • Protect the transistor.

• 
  If the current is 12 amperes and the voltage is 15 volts, what is the resistance?

• • A. 

    .75 ohms

• • B. 

    .80 ohms

• • C. 

    .90 ohms

• • D. 

    1.25 ohms

When an alternating voltage is applied to a purely resistive circuit, the:

• • A. 

    Voltage lags the current.

• • B. 

    Voltage leads the current.

• • C. 

    Current leads the voltage.

• • D. 

    Current is in phase with the voltage.

If a fuse blows when the start button is pressed, what should you check for?

• • A. 

    Shorted motor circuit

• • B. 

    Open coils

• • C. 

    Grounded fuse holder

• • D. 

    Open neutral

• The base unit of energy is the:

• • A. 

    Ion

• • B. 

    Proton

• • C. 

    Joule

• • D. 

    Pound

1. Which of these can be used as insulating live-line tools for electrical protection.

• • (A) Shotgun sticks

• • (B) Switch sticks

• • (C) Hot sticks

• • (D) a, b, and c

A Safety Electrical One Line Diagram should be used to ______________ all sources of electrical energy.

• • (A) Identify

• • (B)Castigate

• • (C) Evaluate

• • (D) Modify

Which of these risks is associated with electricity?

• • A) Shock

• • B) Fire

• • C) Explosion

• • D) All of the above

What’s the first thing you should do if a co-worker is being electrocuted?

• • A) Pull them free of the power source.

• • B) Turn off the power source.

• • C) Call 911

• • D) Alert a foreman

If you’re servicing an appliance, what’s the first thing you need to do?

• • A) Expose the battery or motor.

• • B) Test to ensure its de-powered.

• • C) Inspect the power lines leading into it.

• • D) Remove any batteries