Asvab General Science

Which characteristic is present in most crustaceans?

A. Fur

B. Spine

C. Blubber

D. Exoskeleton

D. Exoskeleton

Which measurement can be used to determine if earplugs are needed when working in a factory?

A. watts

B. amps

C. decibels

D. delta waves

C. decibels

The graph shows changes over time in a population of bacteria added to a test tube of growth medium. What activity characterizes the growth cycle during phase 2?

A. Bacteria are weakening due to the accumulation of waste products.

B. Bacteria are increasing in metabolic activity though not dividing.

C. Bacteria are dying off rapidly from lack of nutrients and space.

D. Bacteria are dividing regularly by binary fission.

D. Bacteria are dividing regularly by binary fission.

Carbon-14 is an example of an

A. isotope

B. isobar

C. allele

D. alloy

A. isotope

Which occupation would most likely be involved in genome mapping?

A. gerontologist

B. geneticist

C. geophysicist

D. geologist

B. geneticist

What is a measuring unit for the pressure of a liquid?

A. liter

B. fathom

C. gallons per minute

D. pounds per square inch

D. pounds per square inch

Where are the reproductive organs located in angiosperms?

A. stem

B. roots

C. leaves

D. flowers

D. flowers

What is the major force that changes peat to coal?

A. lift

B. friction

C. tension

D. pressure

D. pressure

Which of the following terms is used to describe an organism's tendency to maintain its ideal internal state relative to properties such as temperature and pH?

A. mitosis

B. adaptation

C. homeostasis

D. conservation

C. homeostasis

Which of the following processes occurs when a substance changes phase from solid directly to vapor?

A. condensation

B. sublimation

C. evaporation

D. distillation

B. sublimation

Which of the following blood components is responsible for forming a clot at a wound site?

A. plasma

B. platelets

C. red blood cells

D. white blood cells

B. platelets

What are the names of the substances involved in a chemical reaction?

A. gases and solids

B. anodes and cathodes

C. reactants and products

D. solvent and solutes

C. reactants and products

The science of classification is called

A. taxidermy

B. taxonomy

C. toxicology

D. technology

B. taxonomy

Which of the following converts kinetic energy of a moving fluid to mechanical energy?

A. motor

B. turbine

C. ceiling fan

D. portable heater

B. turbine

What gas is primary by-product of the photosynthetic process?

A. carbon monoxide

B. carbon dioxide

C. nitrogen

D. oxygen

D. oxygen

Which of the following is a true statement about an electron?

A. It has a positive charge.

B. It exhibits some properties of waves.

C. It is located inside the atom’s nucleus.

D. It has the most mass of all atomic particles.

B. It exhibits some properties of waves.

Which of the following is caused by pathogenic bacteria?

A. stroke

B. influenza

C. tuberculosis

D. common cold

C. tuberculosis

The rate at which work is done is called

A. power.

B. energy.

C. velocity.

D. momentum

A. power.

A substance is considered acidic if it

A. is nonreactive with metals.

B. has a ph level higher than 7.

C. contains and releases hydroxide ions.

D. ionizes in water to form hydrogen ions.

D. ionizes in water to form hydrogen ions.

Mayonnaise is an example of

A. a precipitate.

B. an emulsion.

C. absolute.

D. a gel.

B. an emulsion.

Both parents of a child are carriers of a recessive allele for a disorder. What is the probability of their child having the recessive disorder?

A. 0%

B. 25%

C. 50%

D. 100%

B. 25%

Which of these is part of the DNA structure?

A. lidocaine

B. benzene

C. guanine

D. radon

C. guanine

Which of the following types of energy is transferred by vibrating air particles?

A. nuclear

B. electrical

C. mechanical

D. electromagnetic

C. mechanical

The specialized bird feet shown in the illustration are a result of natural selection and are examples of

A. adaptations.

B. genetic drift.

C. domestic breeding.

D. two random mutations.

A. adaptations.

Which of the following is a true principle of inertia?

A. It is a force that causes objects to move.

B. It is proportional to the mass of an object.

C. It is the tendency of an object to change its backward motion.

D. It is a natural phenomenon that exists when friction is absent.

B. It is proportional to the mass of an object.

Which human system contains the thyroid gland?

A. circulatory

B. respiratory

C. endocrine

D. glandular

C. endocrine