Unit 2: Safety Pre-test

It is a clothing or equipment designed to be worn by someone to protect them from the risk of injury when doing electrical activities

• Personal Protective Equipment

• Coverall suit

• Safety vest

• Safety shoes

Michael has a project related with grinding activity. What is the best PPE that he needs to use?

• Face Mask

• Safety Eye Glass

• Face Shield

• Safety Shield

What are the two units that can be measured using multimeter?

• Resistance and Microfarad

• AC voltage and Resistance

• Volts and Ohms

• AC and DC voltage

In measuring the amount of AC voltage in convenience outlet, where do you place the black and red test probes?

• Red test probe is for positive part of convenience outlet while black is for negative.

• Black test probe is for positive part of convenience outlet while red is for negative.

• Black test probe should be on left socket of outlet while red is on right socket.

• You can place it either left or right socket because AC voltage has no polarity.

These are the lines with corresponding measurement on the scale.

• Linear Scale

• Graduation Scale

• Horizontal Scale

• Vertical Scale

Graduation Scale for Voltage:

X10V = __________

• 0.2 Volts per line

• 1 Volt per line

• 5 volts per line

• 20 volts per line

Graduation Scale for Resistance:

X1 Ohms (2 ohms to 10 ohms) = __________

• 0.2 ohms per line

• 0.5 ohms per line

• 1 ohm per line

• 2 ohms per line

The setting of multimeter is in X10 ohms. What is the reading of resistance that is shown on the scale?

• 15 ohms

• 15.5 ohms

• 16 ohms

• 16.5 ohms

In measuring the amount of voltage of battery, where do you place the black and red test probes?

• Red test probe is for positive part of battery while black is for negative.

• Black test probe is for positive part of battery while red is for negative.

• Black test probe should be on left side of battery while red is on right side.

• You can place it either left or right side of battery because DC voltage has no polarity.

What is the last thing to do in measuring DC voltage using a digital multimeter?

• Connect the test probes into the circuit.

• Check the measurement on the LED display panel of multimeter.

• Read measurement on the scale of multimeter.

• Select the require range in AC volts range.