Free GED Practice Test

Read the following sentence from an instructional workplace memo: "Neither the shift supervisor nor the warehouse technicians ______ authorized to override the automated conveyor safety interlock without written clearance from plant engineering." Which verb phrase correctly completes the sentence according to standard written English?

Read the following excerpt from an informational text on urban agriculture: "Traditional commercial agriculture relies heavily on long-distance refrigerated transportation corridors, which generate substantial carbon emissions and degrade produce nutritional density during transit. By contrast, vertical indoor farming utilizes closed-loop hydroponic systems installed directly inside metropolitan centers. While vertical farms require significant initial capital expenditures and continuous LED electrical inputs, their ability to produce crops year-round using 95% less water and zero synthetic pesticides offers urban municipalities a resilient buffer against rural drought and supply-chain shocks." According to the passage, what is a primary trade-off associated with vertical indoor farming?

(No-Calculator Question) Evaluate the following numerical expression: -18 + 4 · (-3)² - (-14) ÷ 2 What is the exact value?

A residential plumbing company charges a flat service dispatch fee of $65 plus an hourly labor rate of $80 per hour. A customer’s total invoice for a pipe repair was $345. If h represents the number of labor hours worked, which linear equation represents this situation, and how many hours did the repair take?

In pea plants, the allele for purple flowers (P) is dominant over the allele for white flowers (p). A geneticist crosses a heterozygous purple-flowered plant (Pp) with a homozygous recessive white-flowered plant (pp). Based on a standard Punnett square analysis, what percentage of the resulting offspring is predicted to have white flowers?

A physics student investigates how the mass of a model toy cart affects its acceleration when pulled across a frictionless surface by a constant horizontal force of 12 Newtons (N). The student collects the following laboratory data: • Trial 1: Mass = 2 kg --> Acceleration = 6.0 m/s² • Trial 2: Mass = 3 kg --> Acceleration = 4.0 m/s² • Trial 3: Mass = 4 kg --> Acceleration = 3.0 m/s² • Trial 4: Mass = 6 kg --> Acceleration = 2.0 m/s² Based on Newton's Second Law of Motion (F = m · a) and this data set, what would be the predicted acceleration if the cart's mass is increased to 8 kg under the same 12 N force?

Which constitutional mechanism demonstrates the principle of "checks and balances" exercised by the Legislative Branch over the Executive Branch of the United States federal government?

During an economic expansion, an unexpected severe freeze damages 60% of the citrus crop across Florida, while national consumer demand for fresh orange juice remains unchanged. According to the economic laws of supply and demand, how will this natural event most likely affect the market equilibrium price and quantity of orange juice in supermarkets?

Read the following sentence from an employee safety orientation memo: "Neither the warehouse supervisor nor the forklift drivers ______ able to locate the safety data sheets, therefore the shift manager halted operations until replacement copies arrived." Which revision correctly fills in the blank and fixes the punctuation error?

Read the following excerpt from a municipal community center handbook: "When a volunteer finishes organizing the athletic equipment locker, they must return all clipboards and stopwatches to ______ designated storage bin before locking the facility doors." Which pronoun or phrase most precisely and grammatically completes the sentence in formal Standard Written English?

Read the following passage from an essay on public library systems: "In an era increasingly dominated by commercialized digital subscriptions and paywalled academic archives, the modern public library has quietly evolved into a cornerstone of civic equity. Far from being passive repositories of dusty printed volumes, twenty-first-century libraries provide universal access to high-speed broadband, technical credentialing courses, 3D printing fabrication labs, and multilingual literacy coaching. For marginalized households lacking reliable home internet, the municipal library often represents the sole bridge across the socioeconomic digital divide. By democratizing access to both traditional texts and emerging computational tools, public libraries protect the egalitarian ideal that personal economic standing should never dictate an individual's capacity to learn, acquire technical skills, and participate in civic discourse." Which of the following statements best expresses the central idea of the passage?

Based on the passage in the previous question, which inference about the author's viewpoint regarding the "digital divide" is best supported by the text?

Read the excerpt from an editorial on environmental architecture: "Architects designing climate-resilient commercial buildings are increasingly incorporating passive solar gain, green rooftop vegetation, and natural cross-ventilation shafts. Rather than viewing extreme weather events as unpredictable anomalies that must be resisted through massive mechanical energy consumption, these practitioners design structures that mitigate thermal stress through natural thermodynamics." As used in the excerpt, what is the meaning of the word "mitigate"?

(No-Calculator Question) Evaluate the following numerical expression: 4² - 3 × (8 - 2 × 3) + 18 ÷ 3 What is the value of the expression?

A caterer charges a flat banquet hall setup fee of $350 plus $28.50 per guest for dinner service. A community organization has a total budget of $2,000 for its annual awards dinner. Which equation can be used to find the maximum number of guests, g, the organization can host without exceeding its budget, and what is the maximum number of guests?

A line on a Cartesian coordinate plane passes through the points (2, -1) and (6, 7). What is the slope (m) of this line, and what is its y-intercept (b)?

A cylindrical rainwater storage tank has a circular base radius of 3 feet and a height of 10 feet. Using the formula V = πr²h and approximating π as 3.14, what is the total storage volume of the tank to the nearest cubic foot?

An agricultural science student sets up an experiment to measure the rate of photosynthesis in freshwater Elodea plants. The student places identical sprigs of the plant in four sealed beakers containing water and sodium bicarbonate (which supplies dissolved carbon dioxide). Each beaker is placed at a different distance from a 100-watt light source: 10 cm, 20 cm, 30 cm, and 40 cm. The student counts the number of oxygen bubbles released by each plant per minute. In this experimental investigation, what is the independent variable?

A chemist places 20.0 grams of calcium carbonate (CaCO₃) into an open glass flask containing 50.0 grams of dilute hydrochloric acid (HCl). The combined mass of the flask, reactants, and liquid is recorded as 185.4 grams before the reaction starts. As the substances react, vigorous effervescence (fizzing) is observed. When the reaction ceases, the final mass of the flask and its remaining contents is 176.6 grams. Which statement best explains the 8.8-gram loss in measured mass?

Geologists surveying the oceanic crust along the Mid-Atlantic Ridge observe that the rocks located directly along the central rift valley are young basaltic lavas, whereas the rocks situated hundreds of kilometers to the east and west of the ridge are progressively older. Furthermore, symmetrical bands of alternating magnetic orientation are preserved in the seafloor on either side of the ridge. Which geologic theory do these empirical observations directly support?

In a temperate forest ecosystem, primary producers (deciduous trees and shrubs) capture 100,000 kilocalories (kcal) of solar energy through photosynthesis over a growing season. Herbivores (such as white-tailed deer and insects) consume these plants, and are in turn hunted by secondary consumers (such as foxes and songbirds). According to the 10 percent rule of ecological energy transfer between trophic levels, approximately how much energy is typically transferred and incorporated into the biomass of secondary consumers?

A citizen is arrested and charged with burglary. During the trial, the prosecution attempts to introduce incriminating text messages that police officers obtained by forcibly searching the defendant's smartphone without obtaining a search warrant from a neutral judge, despite no emergency circumstances existing. Which constitutional amendment protects the defendant against this type of warrantless search and seizure?

Under the United States federalist system established by the Constitution, certain powers are delegated exclusively to the national government, while others are reserved to the individual states or shared concurrently. Which of the following is a power reserved primarily to state governments under the Tenth Amendment?

Following the conclusion of the American Civil War, the United States ratified three landmark constitutional amendments between 1865 and 1870 (the Thirteenth, Fourteenth, and Fifteenth Amendments). What was the primary collective purpose of these "Reconstruction Amendments"?

A population pyramid for Country X shows a very broad, expansive base of young children (ages 0–14) that tapers sharply toward a narrow peak of elderly citizens (ages 65 and above). What demographic characteristics does this age-sex distribution structure indicate about Country X?