ASVAB ASVAB Certifications ASVAB-SECTION-7 Questions & Answers

• Question 101:

  Spiders are __________.

  A. marsupials

  B. insects

  C. arachnids

  D. annelids

  Correct Answer: C

  Explanation:

  Spiders are arachnids, part of a large class of arthropods having four pairs of walking legs and no wings,

  unlike insects (which have three pairs of walking legs and a pair of wings) and annelids (which are a type

  of segmented worm with no jointed legs).

  Marsupials are a type of non-placental mammal whose young are born very underdeveloped and then

  continue developing outside their mother's body attached to one of her nipples, usually in a pouch;

  examples are kangaroos, koalas, and possums.

• Question 102:

  What is the type of blood vessels called that carries blood from the other parts of the body to the heart?

  A. Capillaries

  B. Veins

  C. Arteries

  D. Aortas

  Correct Answer: B

  Explanation:

  Veins.

  Capillaries are the tiny blood vessels that form an intricate network throughout the body for the interchange

  of substances such as oxygen and carbon dioxide between blood and tissue cells.

  Arteries are the blood vessels that carry blood from the heart to the various parts of the body, and the

  aorta is a part of the heart itself.

• Question 103:

  Which is the correct and complete sequence of objects in the solar system moving outward from the sun?

  A. Mercury, Venus, Earth, asteroid belt. Mars, Jupiter

  B. Mars, asteroid belt, Jupiter, Saturn, Neptune

  C. Mars, asteroid belt, Jupiter, Saturn, Uranus

  D. Mars, asteroid belt, Saturn, Jupiter, Neptune

  Correct Answer: C

  Explanation:

  Mars, asteroid belt, Jupiter, Saturn, Uranus.

  The order of the major inhabitants of the Solar System is (from the Sun outward): Mercury, Venus, Earth,

  Mars, the asteroid belt, Jupiter, Saturn, Uranus, Neptune, and Pluto.

  The International Astronomical Union reclassified Pluto as a dwarf planet in 2006. However, in 2008 Pluto

  was again reclassified as aplutoid, a new class of objects that currently has four members (the others

  being Eris, Haumea, and Makemake).

• Question 104:

  A person's appearance resulting from his or her genetic makeup is called his or her __________.

  A. genotype

  B. individual apparent mutation

  C. phenotype

  D. source of heredity

  Correct Answer: C

  Explanation:

  A person's appearance resulting from his or her genetic makeup is called their phenotype.

  A person's (or organism's) genotype is their genetic makeup itself (i.e., the combination of alleles that

  determines a what that person or organism looks like).

• Question 105:

  When a plant performs photo synthesis, it produces __________ as a byproduct.

  A. carbon dioxide

  B. oxygen

  C. water

  D. methane

  Correct Answer: B

  Explanation:

  When a plant performs photo synthesis, it produces oxygen as a byproduct.

• Question 106:

  The speed of light in a vacuum is about __________.

  A. 186,000 miles per hour

  B. 186,000 kilometers per hour

  C. 186,000 miles per second

  D. 186,000 feet per second squared

  Correct Answer: C

  Explanation:

  The speed of light in a vacuum is about 186,000 miles per second.

• Question 107:

  When atoms and molecules pass thermal energy by direct contact, it is known as __________.

  A. conduction

  B. convection

  C. insulation

  D. swapping paint

  Correct Answer: A

  Explanation:

  When atoms and molecules pass thermal energy by direct contact, it is known as conduction.

  Convection is a current in a fluid (such as the atmosphere or ocean) caused by uneven distribution of

  heat.

  Insulation is a substance or property that tends to keep heat (or lack of it) in a certain place, rather than

  passing it on.

  Swapping paint is what race cars do when they bump or scrape against each other during a race.

• Question 108:

  The basic unit of heat is the calorie, which is the amount of heat needed to __________.

  A. raise the temperature of one ounce of water one degree Fahrenheit

  B. raise the temperature of one gram of water one degree Celsius

  C. change the temperature of one kilogram of water one degree Kelvin

  D. lower the temperature of one quart of water one degree Celsius

  Correct Answer: B

  Explanation:

  The basic unit of heat is the calorie, which is the amount of heat needed to raise the temperature of one

  gram of water one degree Celsius.

• Question 109:

  The temperature of the atmosphere is less during the nighttime hours because __________.

  A. the side of the earth not feeing the sun loses heat by convection

  B. the side of the earth feeing the sun loses heat by evaporation

  C. the side of the earth not feeing the sun loses heat by radiation

  D. people set their thermostats lower when they go to bed

  Correct Answer: C

  Explanation:

  The temperature of the atmosphere fells during the nighttime hours because the side of the earth not

  facing the sun loses heat by radiation.

• Question 110:

  The ocean current that extends from Florida across the Atlantic Ocean to Europe is __________.

  A. El Nino

  B. the Japan Current

  C. the Gulf Stream

  D. the Southwest countercurrent

  Correct Answer: C