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Quizzes > General Knowledge & Mixed

Identify the symbol: common signs and icons quiz

Quick, free symbol quiz with answers. Instant results and explanations.

Editorial: Review CompletedCreated By: Erin KerryUpdated Aug 23, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration for symbol trivia quiz on a sky blue background

This quiz helps you identify common signs and icons fast and learn what they mean. You will see road signs, safety marks, and everyday app symbols, then get instant feedback on each guess. For more practice, try our famous logos quiz, take an icon recognition quiz, or sharpen car know-how as you identify dashboard symbols.

Which symbol represents Bluetooth technology?
NFC
Bluetooth
Wi-Fi
GPS
The Bluetooth symbol merges the runes for 'H' and 'B,' honoring the Viking king Harald Bluetooth, after whom the technology is named. It's used globally to denote short-range wireless communication between devices. Its distinct angular design makes it easily recognizable. For more information see .
Which symbol is widely used to indicate a USB connection?
FireWire
HDMI
Ethernet
USB
The USB symbol is a trident-like icon with a circle, square, and triangle at its three prongs, symbolizing the versatility of the Universal Serial Bus. It represents data transfer and power supply for numerous peripherals. This design helps users quickly identify USB ports and cables. Learn more at .
Which of these symbols is commonly used to denote Wi-Fi connectivity?
4G
GPS
Wi-Fi
Bluetooth
The Wi-Fi symbol consists of a dot with radiating curved lines, representing wireless signal strength emanating from a single point. It's recognized worldwide to indicate wireless internet connectivity. The number of arcs often corresponds to the signal strength. For a deeper look see .
The triangular loop of three chasing arrows is known as the Mobius loop. What does it signify?
Recyclable
Compostable
Hazardous waste
Biodegradable
The Mobius loop, depicted as three arrows chasing each other in a triangle, indicates that a product is recyclable. It was introduced in 1970 and has become the universal symbol for recycling. It does not guarantee recycled content but signifies recyclability. See for details.
What type of hazard is indicated by the biohazard symbol?
Radioactive
Biohazard
Corrosive
Toxic
The biohazard symbol, adopted in 1966, warns of biological substances that pose a threat to living organisms. It is commonly seen in labs, medical waste containers, and on vehicles transporting hazardous biological materials. Its striking design ensures high visibility. More information at .
The trefoil symbol with three black blades around a central circle denotes which hazard?
Laser hazard
Biohazard
Electrical hazard
Radiation hazard
The radiation trefoil, featuring three blades around a central circle, warns of ionizing radiation sources. It was created in 1946 at the University of California, Berkeley, to mark areas with radioactive materials. Today it's a global standard for radiation safety. Learn more at .
The symbol ? (a circle with an arrow) is used to represent which concept?
Planet Mercury
Planet Uranus
Female gender
Male gender
The ? symbol, an arrow pointing northeast from a circle, denotes the male gender and is also the astronomical symbol for the planet Mars. It originates from the shield and spear of Mars, the Roman god of war. It is universally used in biology and social contexts. More at .
The symbol ? (a circle with a cross) stands for which of the following?
Planet Earth
Planet Venus
Planet Mercury
Female gender
The ? symbol, a circle with a small cross beneath, represents the female gender and is also the astronomical symbol for Venus. It is associated with the goddess Venus and the metal copper. It's widely used in contexts from biology to gender studies. See .
What does the skull and crossbones symbol indicate?
Radioactive substance
Corrosive chemical
Flammable material
Toxic or poisonous
The skull and crossbones warn of toxic or poisonous substances that can cause serious harm or death if ingested, inhaled, or absorbed. It dates back centuries but was standardized for hazard labeling in modern chemical safety. It is still used in many countries to mark lethal hazards. More details at .
Which GHS pictogram shows a test tube pouring liquid onto a hand and a surface?
Corrosive
Explosive
Oxidizing
Flammable
The GHS corrosive pictogram depicts liquid dripping onto a hand and material, indicating that a substance can cause severe skin burns or damage metals. It's part of the Globally Harmonized System for classifying chemical hazards. This symbol ensures consistent warnings across countries. Learn more at .
A map pin-shaped symbol is most commonly used to represent which technology?
Bluetooth
Wi-Fi
NFC
GPS
The map pin, often shown as a teardrop shape, is used in mapping and navigation applications to mark a specific location, indicating GPS positioning. It's widely used in digital maps to show user-defined points of interest. This visual cue helps users identify locations at a glance. More at .
Which symbol represents Near Field Communication (NFC) technology?
Wi-Fi
NFC
4G
Bluetooth
The NFC symbol looks like a stylized letter 'N' with curved lines, representing the short-range radio communication used for contactless payments and data exchange. It's standardized by the NFC Forum for device-to-device connectivity. The icon appears on smartphones and payment terminals. Details at .
Which icon (a circle with a vertical line at the top) denotes the power function on electronic devices?
Eject
Pause
Power
Reset
The power symbol, standardized by the IEC, combines the binary symbols for 'on' (1) and 'off' (0) into a single line within a circle. It indicates the main power control on devices. This universal icon simplifies user interfaces worldwide. Learn more at .
Which zodiac sign is represented by the stylized horns symbol ??
Taurus
Gemini
Leo
Aries
The Aries symbol ? resembles the horns of a ram, reflecting the constellation's mythological association with the golden ram in Greek lore. Aries is the first sign of the zodiac, representing leadership and initiative. The symbol appears in astrological charts and horoscopes. More at .
The Eye of Horus symbol originates from which ancient civilization?
Egyptian
Greek
Roman
Mesopotamian
The Eye of Horus, also called the Wadjet, is an ancient Egyptian symbol of protection, royal power, and good health. It was used in amulets and art to safeguard the living and the dead. Its unique eye shape is distinctly Egyptian in style. Further reading at .
Which of the following depicts the Rod of Asclepius, the true symbol of medicine?
Staff of Hermes
Caduceus
Rod of Asclepius
Trident
The Rod of Asclepius features a single serpent entwined around a staff, symbolizing healing and medicine from Greek mythology. It is often confused with the Caduceus, which has two snakes and wings. The Rod of Asclepius remains the correct emblem for healthcare organizations worldwide. See .
In electrical contexts, what does the symbol ? represent?
Electrical current (ampere)
Electrical resistance (ohm)
Electrical voltage (volt)
Electrical capacitance (farad)
The Greek letter Omega (?) is the SI unit symbol for electrical resistance, named after Georg Ohm. It measures how much a material opposes the flow of electric current. Omega is fundamental in Ohm's Law calculations. More at .
The triangular symbol with a burst of rays emerging from a point indicates which hazard?
Electrical hazard
Biohazard
Ionizing radiation hazard
Laser radiation hazard
The laser radiation hazard symbol shows a starburst pattern within a triangle, warning of high-intensity light that can damage eyes and skin. It is mandated in safety standards for laser equipment worldwide. The design warns users to wear appropriate protection. Learn more at .
A circular traffic sign with a red border and a walking person crossed out indicates what?
No pedestrians
Pedestrian crossing
Pedestrians only
No entry
The red-bordered circle with a silhouette of a person walking and a diagonal line signifies 'No pedestrians,' prohibiting foot traffic in that area. This regulatory sign is used on roads and bridges where pedestrian access is unsafe. Its clear imagery prevents accidents. More information at .
What does the mathematical symbol ? (three dots arranged in a triangle) mean?
Because
Similar to
End of proof
Therefore
The 'therefore' sign (?) consists of three dots in a triangular formation, used in logic and mathematics before a conclusion or result. It dates back to the 17th century and appears in proofs and arguments. It succinctly indicates that what follows is a logical consequence. See .
What mathematical concept is denoted by the symbol ??
Zero
Sum
Indeterminate form
Infinity
The infinity symbol (?), introduced by John Wallis in the 17th century, represents the concept of something unbounded or limitless in mathematics. It is used in calculus, set theory, and other fields to denote an unending quantity. Its shape resembles a sideways figure eight. For more, see .
What does the symbol ? signify in mathematics?
Approximately equal to
Greater than
Not equal to
Identical to
The 'not equal to' sign (?) indicates that two values or expressions are unequal. It combines the equal sign with a slash through it to convey negation. This symbol is standard in mathematics and programming languages. Details at .
On maps, a circle with an arrow pointing north is known as what?
Benchmark
Legend
Scale bar
Compass rose
A compass rose, often shown as a circle with a pointed arrow, indicates the cardinal directions on a map, especially north. It helps users orient themselves and navigate accurately. This symbol dates back to medieval portolan charts. Learn more at .
In the GHS system, what does the pictogram of a dead fish and a tree indicate?
Health hazard
Hazardous to the aquatic environment
Flammable liquid
Corrosive
The dead fish and tree pictogram under the Globally Harmonized System denotes chemicals that are hazardous to aquatic life, indicating long-term environmental damage if released into waterways. It is part of the environmental hazard category. This ensuring consistent labeling for global chemical safety. See .
What does the ? symbol (encircled P) represent in publishing?
Patent pending
Phonogram (sound recording) copyright
Registered trademark
Producer's rights
The ? symbol stands for phonogram copyright, protecting the rights of sound recording producers. It was introduced in the Rome Convention of 1961 to distinguish recording rights from other copyrights. The symbol is placed before the year of publication on albums and audio media. More information at .
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Study Outcomes

  1. Recognize Common Symbols -

    Identify a variety of everyday symbols quickly and accurately in our symbol quiz to sharpen your visual literacy skills.

  2. Differentiate Similar Symbols -

    Distinguish between visually similar quiz symbols and understand subtle distinctions in design and usage.

  3. Recall Symbol Trivia -

    Recall interesting facts and historical tidbits about trivia symbols to enhance your symbol trivia knowledge.

  4. Analyze Symbol Meanings -

    Analyze the cultural and contextual meanings behind each symbol to deepen your appreciation for visual communication.

  5. Assess Your Performance -

    Evaluate your results, track improvements, and see how you rank in the symbol quiz leaderboard.

Cheat Sheet

  1. Semiotic Foundations -

    Understanding the signifier and signified from Saussure's semiotic model (University of Geneva) helps you decode why symbols carry meaning beyond their shape. Mnemonic trick: Think "S stands for sign" to recall that every symbol points to a concept, not just its literal appearance.

  2. ISO 7010 Safety Symbols -

    The ISO 7010 standard (International Organization for Standardization) ensures uniform fire safety and hazard symbols worldwide; for example, the running-man exit sign always appears in green. Use the "Green Man" memory trick: whenever you see green, think "go to safety."

  3. Chemical Element Symbols -

    Memorize common element symbols from IUPAC guidelines; for instance, "Na" for sodium and "Au" for gold. A handy mnemonic for the alkali metals sequence is "Little Naughty Kids Rub Cats Furiously" to remember Li, Na, K, Rb, Cs, Fr.

  4. Key Mathematical Operators -

    Mathematical notation uses operators like ∑ for summation and ∫ for integration, as standardized by the American Mathematical Society. For example, Σ_^5 i = 15 and ∫_0^2 x dx = 2. Mnemonic: "Summation Stacks Numbers" reminds you that ∑ adds terms, while "Integral Is Area" cues you to think of ∫ as the area under a curve.

  5. Digital Encoding: Unicode & ASCII -

    The Unicode Consortium's registry assigns each symbol a unique code point, like U+2600 for ☀ (sun), while ASCII covers basic symbols in the 0 - 127 range. Remember the hex trick: four digits starting with "26" often cover miscellaneous shapes, helping you spot code patterns quickly.

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