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UTILITIES - ELEC PT. 1

Total questions: 25

Worksheet time: 50mins

Name
Class
Date
1.

The SI unit of electric charge.

a)

Coulomb

b)

Volt

c)

Watt

d)

Ampere

2.

The SI unit of potential difference and

electromotive force.

a)

Coulomb

b)

Volt

c)

Watt

d)

Ampere

3.

SI unit of power.

a)

Coulomb

b)

Volt

c)

Watt

d)

Ampere

4.

basic SI unit of electric current.

a)

Ohm

b)

Farad

c)

Watt

d)

Ampere

5.

SI unit of electrical resistance

a)

Ohm

b)

Farad

c)

Specific Resistance

d)

Ampere

6.

Strength of an electric current

a)

Voltage

b)

Wattage

c)

Amperage

d)

Capacitance

7.

If it is related to a plumbing system, this equals to pressure used in water to make the current run. It is also called the electromotive force.

a)

Voltage

b)

Wattage

c)

Amperage

d)

Power

8.

The amount of Power.

a)

Voltage

b)

Wattage

c)

Amperage

d)

Power

9.

If it relates to a plumbing system, this is the flow of water.

a)

Current

b)

Ampere

c)

Ohm

d)

Power

10.

The opposition of a conductor to the flow of

current.

a)

Current

b)

Resistance

c)

Ohm

d)

Conductivity

11.

Both are true for generators and alternators, Except:

a)

Converts mechanical energy to electrical energy

b)

Both produces AC and DC energy

c)

Works on the principle of Faraday law of electromagnetic induction

d)

None of the Above

12.

Of or pertaining to a combination of three circuits energized by alternating currents or voltages differing in phase by one third of a cycle or 120°.

a)

Single-phase

b)

Two-phase

c)

Three-phase

d)

Tri-phase

13.

lightning arresters are devices used for protecting electric equipment from damage by lightning or other high-voltage currents, using spark gaps to carry the current to the ground without passing through the device. What is it made of?

a)

Ceramic

b)

Wood

c)

Porcelain

d)

Granite

14.

Standard Voltage rating in residential areas in the Philippines.

a)

230V

b)

220V

c)

200V

d)

110V

15.

An open metal framework for supporting insulated electrical conductors.

a)

Raceway

b)

Cable tray

c)

Busway

d)

Grommet

16.

What is the difference between a wire and a cable?

a)

Wire is used for Electrical, Cable is used for Structural

b)

Wire is a solid wire whereas a able is stranded type.

c)

A wire is a single conductor whereas a cable is a group of conductors.

d)

All of the Above

17.

What is true between a pipe and a tube?

a)

a PIPE is a round, rectangular, squared or oval hollow section measured by outside diameter (OD) and wall thickness (WT)

b)

Pipe is measured through its ID, while a tube is measured through its OD

c)

A TUBE is a round tubular to distribute fluids and gases, designated by a nominal pipe size (NPS or DN)

d)

All of the Above

18.

A tube, pipe, or duct for enclosing and protecting electric wires or cable.

a)

Raceway

b)

Busway

c)

Conduit

d)

Bushing

19.

Which is a brand of Wires and Cables?

a)

Philflex

b)

Koten

c)

Metro

d)

Both A and C

20.

Which is a brand of Lighting Fixtures?

a)

Omni

b)

Koten

c)

Royu

d)

All of the Above

21.

Which is a not a brand of Electrical Devices?

a)

Akari

b)

Hitachi

c)

Philips

d)

Denki

22.

What does it do? Refer to image.

a)

Produces AC and DC energy

b)

Produces AC energy

c)

Converts AC to DC

d)

Converts DC to AC

23.

What does it do? Refer to image.

a)

Produces AC and DC energy

b)

Produces AC energy

c)

Converts AC to DC

d)

Converts DC to AC

24.

What does it do? Refer to image.

a)

It gives off ambient lighting

b)

Produces Alarm Signals

c)

It controls light through Day and Night Situations

d)

It is a Siren

25.

The Image suggests what kind of Diagram?

a)

Two-way Switch

b)

Three-way Switch

c)

Four-way Switch

d)

Series-Parallel Connection