The force which opposes and reduces the flow of electrical current is recognized as ________.

A part of an electric circuit which converts electrical energy into another form of energy to do work is ________.

A part of an electrical circuit, consists of batteries, generator or a main electrical power which supplies electricity is called ________.

 A law that states that current is directly proportional to voltage and inversely proportional to resistance is known as ________.

In Ohm's Law, to find the unknown voltage in the circuit, the formula to be used is:

What amount of current does a 40-watt fluorescent lamp draw from a 220 volts power source?

There are several factors involved in electrical wiring installation but the foremost consideration is ________.

The standard number or diameter of wires for convenience outlet layout should be?

To comply with the requirements of the Philippine Electrical Code, the appropriate fuse rating for lighting outlet should be ________.

Planning and designing of electrical wiring plan is being done in order to:

Circuit breakers are used to protect household electrical circuits. What is the ampacity rating of the breaker used for convenience outlets or general purpose circuits?

An electrical component used to control electrical circuit in two different locations is called:

To conserve energy, what kind of lamp should be used in lighting fixtures?

The size of electrical wire recommended for installing lighting fixtures is:

What is the voltage required by an automatic pressure cooker having a resistance of 20 ohms when the current flowing is 8 amperes?

In a 220-volt power line, three 50-watt incandescent bulbs are connected in parallel. How many more bulbs will light if one of the bulbs is open?

In a simple electrical connection, one of the lines of the source is connected to ________. 

Which of the following electrical symbols in wiring diagram means that there are three wires running in a line?

A series connected dry cells will result to ________.

What type of switch is used to control alternately three-phase line system using two sources of power?

Which of the following is the best conductor of electricity?

What type of switch is used when you want to control one lamp or group of lamps in two different locations?

Cells are connected in parallel to increase the ________ capacity of the cells.

The resistors are to be connected in four possible types of circuit connections namely series, parallel, series-parallel and parallel-series. Which type of connection will give the least amount of equivalent resistance?

Which is an exposed wiring method that uses cleats, knowbs, tubes and flexible tubing for the protection and support of single insulated conductor run in or on building and not concealed by the building structure?

What will happen if two 100-W, 230 V incadescent lamps are connected in series across a 230 V source?

What is the reason why electrical appliances are connected in parallel rather than in series?

When replacing a busted fuse which of the following is important?

Which of the following is a source of alternating current?

When there is a break in the circuit and the current could not pass through, the circuit is ________.

Which term usually refers to a device that produces an electric current when light falls upon them?

Which is synchronous alternating-current machine that changes mechanical power into electrical power?

Which battery CANNOT be recharged after its chemical energy has been depleted?

Which generator generates direct current?

Which battery can be recharged after each chemical energy has been depleted?

Which is used to change mechanical energy into electrical energy?

A process in splitting the atom of uranum is called ________.

A process by joining hydrogen atoms which causes heat hotter than the sun is called ________.

Which transforms heat energy to electric energy?

Which is the kinetic energy of falling water?

Which is a solar collector that is capable of producing voltage when exposed to radiant energy (sunlight)?

Energy derived or extracted from the internal heat of the earth is called ________.

Which refers to the extraction of electrons from a substance by sunlight on incident electromagnetic radiation?

Which statement is TRUE?

A small light ulb with a resistance of 100 ohms is connected across a 120-v line. What is the current through the bulb?

A 200-v lamp has a resistance of 400 ohms. The power rating in watts of lamp is ________.

If 18 resistances, each of a value of 36 ohms, are connected in parallel, then the total resistance is ________.

A toaster takes 10 A from a 120v line. The power used is:

What is the resistance of a 100 w, 110-v incandescent lamp?

How many kilowatts is the water heater if it draws a current of 10 amperes and has a resistance of 23 ohms?

The resistance of an electrical wire is inversely proportional to its ________.

A fluorescent lamp unit connected to a 110v AC line takes 1.2A and requires 110w power. What is its power factor?

An electric heater uses 20kw-in 8 hours. If the voltage across the heater is 240 volts. What is the heater resistance?

The resistance of a 230v incandescent lamp is 300 ohms. What current is required to operate the lamp?

A group of lamps operates a current of 12 A and a voltage of 120v. What is the total power of the lamps?

What is the maximum load capacity of a 15A circuit breaker protecting a branch circuit that supplies a continuous load?

What is the horsepower rating of an electric water pump if it has a power rating of 1.75 Kw?

How many kilowatts does a certain appliance consume for 5 hours of useif it has a power rating of 1.5 Hp?

A cell supplies a load current of 0.5A for a period of 20 hours until its terminal voltage falls to an unacceptable level. How long can it be expected to supply a current of 100mA?

A battery is rated 200Ah. If it is used to supply a constant current of 8Ah. How long can the battery last until it becomes unusable?

The resistance of 500 meters of a certain wire is 125 ohms. What length of the same wire will have a resistance of 60 ohms?

If three equal resistances are connected in parallel,the equivalent resistance of the circuit will be ________ the value of one resistor.

Find the cost of using a 100W, 220V lamp for 20 hours at P3.00 per kW-hr?

Which is a box with a blank cover is inserted in one or more runs of raceway to facilitate pulling of the conductors?

Which is a box with a blank cover for joining runs of conduits and providing space for connection and branching of enclosed conductors?

The minimum size of wire used in electrical wiring is the no.14 AWG. Under the SI standard, what is the diameter of this wire?

A thin-walled steel raceway of circularwith a corrosion-resistant coating for protection of wires or cable is ________.

Armored cable is commercially known as ________.

Which type of cable is fabricated assembly of insulated conductors enclosed in a flexible metal sheath?

Flat cable assembly shall be installed for ________.
I. concealed work only
II. exposed work only

An assembly of two pieces of insulating material provided with grooves for holding one or more conductors at a definite scpacing from the surface wired over and from each other, and with holes for fastening in position is called:

Which is a wiring method that uses knobs, tubes, and flexible non-metallic tubing for the protection and support of single insulated conductors concealed in hollow spaces of walls and ceilings of buildings?

Which term refers to that switch or outlet body that is embedded or hidden in the wall?

The use of surface non-metallic raceway is not permitted in all the following, EXCEPT:

When the entire switch or outlet body is visible and extends beyond the wall surface, the device is said to be ________.

What device automatically breaks the circuit the moment an overload or short circuit occurs?

Which term is used when two conductors are embedded in one solid mass of rubber insulation?

What type of socket is used for outdoor or wet location in wiring installation?

What is the smallest size of wire permitted by the Code to be used in wiring installation?

Which one of the following uses is permitted by the Code to be used for surface non-metallic raceway?

Service entrance using copper conductors shall have sufficient capacity and shall not be smaller than ________.

If two identical lamps give normal light when connected in parallel in a 230v line are reconnected in series in the same line, the bulb will ________.

When flexible metal conduit is installed as a fixed raceway, it shall be secured within ________ on each side of every outlet box.

A short circuit can be detected by using ________.

The electrical plans for residential house include the following items, EXCEPT:

If installed in raceways, conductors of size ________ and larger shall be stranded.

At least ________ of free conductor shall be left at each outlet, junction and switch point for splices or connection of fixture or devices.

A certain residential house has lighting load of 1.1 kVA and an appliance load of 10A at 220 volts, single phase, two wires, 60 Hz. The branch circuit fuse protection for lighting and appliance loads are ________ and ________, respectively.

Live vegetation or trees ________ used for support of overhead conductors spans.

Light fixtures suspended from the ceiling by chains should be wired so that the wires ________.

In rigid metal conduit wiring, conduit of 15-20 mm diameter shall be supported at least every ________.

Why do conductors need additional wiring insulators?

What is the total number of mechanical degrees that an electrical pipe run maybe bent between pull points?

 Rigid non-metallic conduit shall be supported within ________ of each box.

Electrical metallic tubing smaller than ________ electrical trade size shall NOT be used.

Type AC cable shall be secured by approved staples, straps, hangers or similar fittings at intervals NOT exceeding ________.

In concealed knob and tube wiring, the clearance to be maintained between conductors is ________.

Three bulbs are connected in parallel and controlled by a single switch. If one of the 3 bulbs is busted, what will happen to the remaining bulbs?