1.
What is the angle of spotlight for walls and paintings?
Correct Answer
C. 20-30 degrees
Explanation
The angle of spotlight for walls and paintings is typically between 20-30 degrees. This angle allows for optimal illumination and highlighting of the artwork or wall without causing excessive glare or shadows. It provides a balance between focusing the light on the desired area and spreading it out evenly.
2.
What type of switch has a pilot lamp that allows it to be seen in the dark?
Correct Answer
B. Illuminated switch
Explanation
An illuminated switch is the correct answer because it has a pilot lamp that allows it to be seen in the dark. This pilot lamp is usually an LED or a small light bulb that provides a soft glow, making it easier to locate and operate the switch in low light conditions. The illumination feature is particularly useful in areas where visibility is limited, such as bedrooms, hallways, or control rooms, ensuring that the switch can be easily identified and used even in the dark.
3.
What type of light is best suited for outdoor parking?
Correct Answer
B. Illuminated switch
Explanation
The question asks for the type of light that is best suited for outdoor parking. Among the given options, the only one related to lighting is "illuminated switch." An illuminated switch typically has a built-in light that allows it to be easily located and used in the dark. This type of switch would be beneficial in outdoor parking areas where visibility is important, especially during nighttime. Therefore, an illuminated switch is the correct answer for this question.
4.
What type of light is best suited for outdoor parking?
Correct Answer
B. Metal halide
Explanation
Metal halide lights are best suited for outdoor parking because they provide a bright and natural-looking light. They have a high color rendering index (CRI), which means they accurately represent the colors of objects. This is important in parking lots where drivers need to see clearly and accurately identify objects and people. Metal halide lights also have a long lifespan and are energy-efficient, making them a practical choice for outdoor lighting.
5.
What is use to intensify the light?
Correct Answer
A. Reflector
Explanation
A reflector is used to intensify light by reflecting and redirecting it in a specific direction. It is designed to bounce light off its surface, focusing and concentrating it in a desired area. This helps to increase the brightness and intensity of the light source, making it more effective and efficient. A diffuser, on the other hand, is used to scatter light and reduce its intensity, creating a softer and more even illumination. Troffer and chrome grills are not directly related to intensifying light.
6.
Light use for reading
Correct Answer
A. Task
Explanation
This question is asking for the purpose or use of light. Among the given options, "task" is the most suitable answer as it indicates that light is used for a specific activity or job, such as reading. The other options - general, accent, and spot - do not specifically indicate a purpose or use for light. Therefore, the correct answer is "task".
7.
Lighting that calls attention to a particular object or feature in the visual field, or that forms a decorative pattern on a surface?
Correct Answer
B. Accent lighting
Explanation
Accent lighting is the correct answer because it refers to the type of lighting that is specifically designed to highlight or draw attention to a particular object or feature in the visual field. It is used to create a focal point or emphasize certain elements in a space. This type of lighting is commonly used in art galleries, museums, or to highlight architectural details in a building.
8.
What type of lamp is use for car parks?
Correct Answer
C. High pressure sodium light
Explanation
High pressure sodium lights are commonly used for car parks because they provide a bright and efficient source of light. These lamps emit a yellowish-orange light that enhances visibility and increases safety in parking areas. Additionally, high pressure sodium lights have a long lifespan and require less maintenance compared to other types of lamps, making them a cost-effective choice for car park lighting.
9.
It is a type of lighting used extensively in signages and utilizes high electrical wattage?
Correct Answer
B. Panaflex
Explanation
Panaflex is the correct answer because it is a type of lighting commonly used in signages. It is known for its high electrical wattage, making it suitable for illuminating large signs and displays. LED lights are also commonly used in signages, but they do not typically require high electrical wattage. Metal halide and CFL lights are not commonly used in signages and do not necessarily utilize high electrical wattage.
10.
A type of light use in panaflex signage?
Correct Answer
B. Fluorescent tube
Explanation
The correct answer is fluorescent tube. Fluorescent tubes are commonly used in panaflex signage due to their bright and even illumination. They are energy-efficient and have a long lifespan, making them a popular choice for outdoor advertising. LED lighting is also commonly used in signage, but it is not specified in the question. CFL and T5 are other types of lighting, but they are not as commonly used in panaflex signage as fluorescent tubes.
11.
On what kind of project is the daylight lamp best suited?
Correct Answer
A. Textile manufacturing
Explanation
The daylight lamp is best suited for textile manufacturing projects. This is because textile manufacturing requires accurate color matching and precise detail work, which can be enhanced by using a daylight lamp. The lamp provides a natural and bright light that closely resembles daylight, allowing workers to see colors and details more accurately. This is especially important in textile manufacturing where color accuracy is crucial for producing high-quality products.
12.
What is not part of lightning arrester?
Correct Answer
C. Transmitter
Explanation
A lightning arrester is a device used to protect electrical systems from the damaging effects of lightning strikes. It works by providing a path of least resistance for the lightning current to follow, diverting it away from sensitive equipment. The components of a lightning arrester typically include a lightning rod, which is a metal rod mounted on top of a structure to attract lightning strikes, an earthen material, which provides a low-resistance path to ground, and a down conductor, which connects the lightning rod to the earthen material. A transmitter, on the other hand, is not a part of a lightning arrester. Transmitters are used for sending and receiving signals in communication systems and are not directly related to lightning protection.
13.
What is used to create contrast and control the light intensity?
Correct Answer
D. Diffuser
Explanation
A diffuser is used to create contrast and control the light intensity. It is a device that scatters or diffuses light, reducing its intensity and creating a soft, even illumination. By spreading the light in different directions, a diffuser helps to eliminate harsh shadows and reduce glare. This makes it an effective tool for creating contrast and controlling the overall brightness in a space. A troffer is a type of light fixture, a dimmer is used to adjust the brightness of a light source, and an accent switcher is not a commonly used term in relation to controlling light intensity.
14.
A type of light that is banned by the government?
Correct Answer
D. Metal halide
Explanation
Metal halide is a type of light that is banned by the government. This type of light contains toxic substances, such as mercury and metal halides, which can be harmful to the environment and human health if not properly disposed of. Due to these concerns, many governments have implemented regulations to restrict or ban the use of metal halide lights.
15.
Why do we use downlight or pin light in stores?
Correct Answer
D. All of the above
Explanation
Downlights or Pin lights are used in stores for several reasons:
To emphasize particular regions or items with the help of lighting: Spotlights can draw attention to specific products or areas in the store, making them stand out to customers.
To emphasize the texture of the materials used: Proper lighting can highlight the texture of products, making them more appealing. This is particularly important in stores selling items like clothing or furniture, where texture is a key aspect of the product.
To bring up the true color of the materials used: Good lighting can accurately represent the colors of products, which is crucial as customers want to see the true color of the item they are purchasing.
So, all the given options are correct reasons for using Downlights or Pin lights in stores. The choice among these options depends on the specific goals of the store’s lighting design.
16.
Which is not a commercial wattage for fluorescent light?
Correct Answer
A. 120W
Explanation
The given options represent different wattages for fluorescent lights. All the options except for 120W are commonly used commercial wattages for fluorescent lights. Therefore, 120W is not a commercial wattage for fluorescent light.
17.
A type of light that provides uniform light on a wide are?
Correct Answer
A. Flood light
Explanation
A flood light is a type of light that provides uniform light on a wide area. It is designed to illuminate a large space or outdoor area, such as a stadium, parking lot, or backyard. Unlike a spot light, which focuses on a specific spot or object, a flood light casts a wide beam of light, evenly illuminating the surroundings. Control light and directional light are not suitable options as they do not provide the same level of wide and uniform illumination as a flood light does.
18.
( a ) ( b ) ( c )
Identify the cove light from the given illustrations?
Correct Answer
B. B
19.
Light that defines "somberness"?
Correct Answer
C. Spot light
Explanation
A spot light is a type of lighting that can be used to create a somber atmosphere. It is a focused beam of light that can be directed to a specific area or object, creating a sense of drama and intensity. The concentrated light creates strong contrasts between light and shadow, adding depth and a sense of seriousness to the space. This makes spot light the most suitable option for defining "somberness" in a lighting context.
20.
Has the most effect on light in a room?
Correct Answer
B. Color
Explanation
Color has the most effect on light in a room because different colors absorb and reflect light differently. Light-colored walls and surfaces reflect more light, making the room appear brighter, while dark-colored walls and surfaces absorb more light, making the room appear darker. The color of the room can also affect the perceived temperature and mood of the space.
21.
A set of light bulbs were connected in series connection. If 1 bulb is going to be removed, what will happen?
Correct Answer
B. The other bulbs in series will go out
Explanation
When light bulbs are connected in series, the current flows through each bulb in the circuit. If one bulb is removed, it breaks the circuit and interrupts the flow of current. As a result, the other bulbs in the series will go out because they are no longer receiving the necessary current to produce light.
22.
A set of light bulbs were connected in parallel connection. If 1 bulb is going to be removed, what will happen?
Correct Answer
A. The remaining light bulbs will still be lighted
Explanation
When light bulbs are connected in parallel, each bulb has its own separate path to the power source. Therefore, if one bulb is removed, the circuit will remain intact and the remaining light bulbs will still be connected to the power source. As a result, the remaining bulbs will continue to be lighted.
23.
The measure of brightness of a light source or an illuminated surface equal to the luminous intensity per unit protected sera of the source or surface viewed from a given direction?
Correct Answer
B. Luminance
Explanation
Luminance refers to the measure of brightness of a light source or an illuminated surface. It is defined as the luminous intensity per unit projected area of the source or surface when viewed from a specific direction. Luminance is commonly used to describe the perceived brightness of objects or surfaces, and it is measured in units called candelas per square meter (cd/m²).
24.
What type of light is best use for cove lighting?
Correct Answer
B. T5
Explanation
T5 fluorescent lights are the best type of light to use for cove lighting. T5 lights are energy-efficient, produce a high amount of light output, and have a slim design that makes them ideal for fitting into narrow spaces like coves. They also have a longer lifespan compared to other types of lights, reducing the need for frequent replacements.
25.
What type of light is best used from an oval track and stadium?
Correct Answer
B. Metal halide
Explanation
Metal halide lamps are the best type of light to be used from an oval track and stadium because they produce a bright, white light that closely resembles natural sunlight. This type of light is ideal for illuminating large areas and providing good visibility for both athletes and spectators. Metal halide lamps also have a longer lifespan and higher energy efficiency compared to other options, making them a popular choice for outdoor sports facilities.
26.
What kind of lighting is best use for outdoor parking?
Correct Answer
A. HPS
Explanation
HPS (High Pressure Sodium) lighting is the best choice for outdoor parking. HPS lights produce a bright, yellowish light that enhances visibility and provides good color rendering. They have a long lifespan and are energy-efficient, making them cost-effective for outdoor lighting applications. HPS lights also have good durability and can withstand harsh weather conditions, making them suitable for outdoor parking areas.
27.
What lighting should you use for working area?
Correct Answer
A. General lighting
Explanation
General lighting is the most suitable choice for a working area because it provides overall illumination to the entire space. It ensures that the area is well-lit, allowing individuals to see clearly and work efficiently. General lighting typically consists of ceiling-mounted fixtures or recessed lights that distribute light evenly throughout the room. This type of lighting is essential for tasks that require focus and attention, as it reduces eye strain and promotes productivity. It is also beneficial for creating a comfortable and safe working environment.
28.
Where is the best location for AC cooling tower?
Correct Answer
A. Roofdeck
Explanation
The best location for an AC cooling tower is on the roofdeck. Placing the cooling tower on the roof allows for better air circulation and prevents any obstructions that may hinder its performance. Additionally, the roofdeck provides ample space for installation and maintenance of the cooling tower, ensuring efficient operation and easy access for repairs if needed.
29.
What type of switch has a pilot lamp that allows it to be seen in the dark?
Correct Answer
B. Illuminated switch
Explanation
An illuminated switch is a type of switch that has a pilot lamp, which allows it to be seen in the dark. The pilot lamp is usually a small light bulb or LED that is built into the switch and provides a soft glow when the switch is turned off. This makes it easier to locate and operate the switch in low light or dark environments. The other options mentioned, such as "glow in the dark" switch system, dimmer switch, and pilot switch, do not specifically mention the presence of a pilot lamp or the ability to be seen in the dark.
30.
At day time, artificial lighting comes from the skylight, making beam and columns produce different plays of light. How do you achieve this a night?
Correct Answer
A. Put a spotlight atop the skylight
Explanation
Placing a spotlight atop the skylight at night will replicate the effect of artificial lighting during the day. By directing the light downwards from the skylight, it will create different plays of light on the beams and columns, similar to how natural light from the skylight interacts with them during the day. This will help achieve a similar dynamic and aesthetic effect at night as during the day.
31.
Which of the following lamps has the filament?
Correct Answer
A. Incandescent
Explanation
The incandescent lamp has a filament. When an electric current passes through the filament, it heats up and produces light. This is the basic principle behind incandescent lighting. LED lamps, on the other hand, use a semiconductor to emit light, while fluorescent lamps use a combination of phosphors and gas discharge to produce light. Metal halide lamps also use gas discharge and metal halide salts to create light. Therefore, the correct answer is incandescent.
32.
Identify the type of lighting that is shown above?
Correct Answer
A. Recessed
Explanation
The type of lighting shown above is recessed. Recessed lighting refers to fixtures that are installed into a hollow opening in the ceiling, creating a clean and streamlined look. These fixtures are typically hidden from view, with only the light emitted from them visible. Recessed lighting is commonly used in both residential and commercial settings to provide general or accent lighting.
33.
Identify the lighting fixture shown?
Correct Answer
B. Metal halide lamp
Explanation
The lighting fixture shown in the image is a metal halide lamp. It can be identified by its characteristic bright white light and the presence of a small, enclosed bulb with a bluish tint. Metal halide lamps are commonly used in outdoor lighting applications, such as streetlights and sports stadiums, due to their high intensity and efficiency. They are also used in indoor settings where a bright, white light is desired, such as in commercial buildings or large retail spaces.
34.
Identify the lighting as shown, it is commonly use for a college baseball game?
Correct Answer
A. Flood lighting
Explanation
Flood lighting is commonly used for a college baseball game because it provides a wide and uniform distribution of light, illuminating the entire playing field. This type of lighting is essential for ensuring visibility for both players and spectators, allowing for a safer and more enjoyable game experience. Metal halide lighting, spot lighting series, and LED lighting series may also be used for various purposes, but flood lighting is specifically designed for illuminating large outdoor areas such as sports fields.
35.
Identify the lighting use for this outdoor football field?
Correct Answer
A. Flood lighting
Explanation
The correct answer is flood lighting. This type of lighting is commonly used for outdoor football fields as it provides a wide and uniform distribution of light, ensuring that the entire field is well-lit. Flood lighting fixtures are typically mounted on tall poles around the field, allowing for maximum coverage and visibility during evening games or events. Metal halide lighting, spot lighting, and LED lighting series may also be used for outdoor sports fields, but flood lighting is the most suitable option for football fields.
36.
Identify the lighting type shown?
Correct Answer
C. Spot lighting
Explanation
The lighting type shown is spot lighting because it is focused on a specific area or object. Spot lighting is commonly used to highlight artwork, sculptures, or architectural features. It typically consists of a spotlight or track lighting that can be adjusted to direct the light beam to a specific spot.
37.
Parts of a recessed light that is exposed?
Correct Answer
A. Trim
Explanation
The correct answer is "trim". In a recessed light, the trim refers to the visible part of the light fixture that is exposed. It is the decorative element that covers the edge of the hole in the ceiling and provides a finished look. The trim can come in various styles and finishes to complement the overall design of the room.
38.
Identify the lighting design shown?
Correct Answer
B. Cove lighting
Explanation
Cove lighting refers to the type of lighting design shown in the image. Cove lighting involves the use of hidden light fixtures placed in a recessed area, such as a cove or ledge, to create a soft, indirect lighting effect. This type of lighting is often used to highlight architectural features or create a warm and inviting ambiance in a space.
39.
As shown in the image, it is the combination of light reflections from various surfaces to produce a uniform illumination?
Correct Answer
B. Ambient lighting
Explanation
Ambient lighting refers to the overall illumination in a space that provides a uniform level of brightness. It is achieved by combining light reflections from various surfaces, such as walls, ceilings, and floors, to create a balanced and comfortable lighting environment. Unlike task lighting, which focuses on specific areas for performing tasks, or accent lighting, which highlights specific objects or features, ambient lighting aims to evenly distribute light throughout a room to create a pleasant and inviting atmosphere. Spot lighting, on the other hand, is used to direct focused light onto a particular area or object.
40.
A type of lighting design, that provides an area with overall illumination. Also known as general lighting, it radiates a comfortable level of brightness without glare and allows you to see and walk about safely. Refer to interior photo shown.
Correct Answer
B. Ambient lighting
Explanation
Ambient lighting is a type of lighting design that provides overall illumination to an area. It is also known as general lighting and is designed to radiate a comfortable level of brightness without glare. Ambient lighting allows people to see and walk about safely in a space. In the context of the interior photo shown, ambient lighting would be the most suitable option for providing overall illumination to the area.
41.
A type of lighting design, that adds drama to a room by creating visual interest. As part of an interior design scheme, it is used to draw the eye to houseplants, paintings, sculptures and other prized possessions. It can also be used to highlight the texture of a brick or stone wall, window treatments or outdoor landscaping.
Correct Answer
C. Accent lighting
Explanation
Accent lighting is the correct answer because it is a type of lighting design that adds drama to a room by creating visual interest. It is used to draw attention to specific objects or areas in a space, such as houseplants, paintings, sculptures, and other prized possessions. It can also be used to highlight textures of walls, window treatments, or outdoor landscaping. This type of lighting is often used in interior design schemes to enhance the overall aesthetic and atmosphere of a room.
42.
A type of lighting design, that helps you perform specific tasks, such as reading, grooming, preparing and cooking food, doing homework, working on hobbies, playing games and balancing your checkbook. It can be provided by recessed and track lighting, pendant lighting and under cabinet lighting, as well as by portable floor and desk lamps.
Correct Answer
A. Task lighting
Explanation
The given description mentions that this type of lighting design helps with performing specific tasks such as reading, grooming, cooking, etc. This indicates that the lighting is focused on providing illumination for these specific activities, making the correct answer "task lighting".
43.
A semiconductor light source. Electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. See photo above.
Correct Answer
A. Light - emitting diode
Explanation
A light-emitting diode (LED) is a semiconductor light source that works by allowing electrons to recombine with electron holes within the device, releasing energy in the form of photons. This process creates light. Therefore, the correct answer is light-emitting diode.
44.
A type of lighting usually use for cove lighting or at top and bottom of cabinet for task lighting?
Correct Answer
B. T5
Explanation
The T5 is a type of lighting that is commonly used for cove lighting or at the top and bottom of cabinets for task lighting. It is a fluorescent tube that is energy-efficient and provides a bright and uniform light output. CFL tubing, spotlights, and halogen lights are not typically used for these specific lighting purposes.
45.
A form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot-matrix displays. It is widely used in digital clocks, electronic meters, and other electronic devices for displaying numerical information. See photo provided.
Correct Answer
B. Seven-segment display
Explanation
A seven-segment display is a type of electronic display device that is commonly used to display decimal numerals. It consists of seven segments, each of which can be individually turned on or off to form different numbers or characters. This type of display is simpler and less complex than dot-matrix displays, making it a popular choice for digital clocks, electronic meters, and other devices that require numerical information to be displayed.
46.
What is the base of lighting use for the numeric display as shown in the photo?
Correct Answer
A. Led
Explanation
The correct answer is LED. LED stands for Light Emitting Diode, which is a type of lighting technology commonly used for numeric displays. LEDs are energy-efficient, long-lasting, and can produce bright and vibrant colors, making them ideal for applications such as digital displays. They are often used in electronic devices, signage, and various lighting fixtures.
47.
The most common lighting use for nowadays signage and facade lighting effect?
Correct Answer
A. Led
Explanation
LED lights are the most common lighting use for signage and facade lighting effects nowadays. LED lights are preferred due to their energy efficiency, long lifespan, and versatility in creating different lighting effects. LED lights also offer a wide range of colors and can be easily controlled and programmed for dynamic lighting displays. Additionally, LED lights are durable and can withstand outdoor conditions, making them suitable for signage and facade lighting applications.
48.
What type of lighting that emphasize a curve wall?
Correct Answer
D. Pin light
Explanation
Pin lights are small, focused lights that can be used to highlight specific areas or objects. They are often used to emphasize curves or architectural features on walls, as their narrow beam of light can be directed precisely. Unlike spot lights or track lighting, which provide a broader illumination, pin lights are ideal for creating a dramatic effect and drawing attention to a specific area. Drop lighting, on the other hand, typically refers to pendant lights that hang down from the ceiling and are not specifically designed to emphasize curves on a wall.
49.
Why oil painting is more difficult tab acrylic lighting when considering lighting to use?
Correct Answer
B. Glare
Explanation
Oil painting is more difficult than acrylic painting when considering lighting to use because glare can be a major issue with oil paintings. The reflective nature of oil paint can cause strong reflections and glare, which can make it challenging to properly view and appreciate the artwork. This can make it difficult for artists to accurately assess their work and make necessary adjustments. Acrylic paint, on the other hand, does not have the same reflective properties and is less prone to glare, making it easier to work with in different lighting conditions.
50.
What type of lighting is shown in the photo?
Correct Answer
A. Valance lighting
Explanation
Valance lighting refers to a type of lighting that is installed above a valance or a horizontal decorative element. It is commonly used to provide indirect lighting and create a soft, ambient glow in a room. In the given photo, if the lighting is positioned above a valance, it would be classified as valance lighting.