Free ASVAB Section 7: General Science Exam Braindumps (page: 30)

Page 29 of 97

When the mixture of fuel and air bums in the cylinder, it creates a temperature of ______________.

  1. 4000°F to 4500°F
  2. 400°F to 450°F
  3. 1000°F to 2500°F
  4. 1250°F to 1500°F

Answer(s): A

Explanation:

When the mixture of fuel and air burns in the cylinder, it creates a temperature of 4000° to 4500°F.



The first emission control applied to automobile engines was called the ___________.

  1. preventive combustion venturi system
  2. positive crankcase ventilation system
  3. pollution control ventilation system
  4. pollution combustion vertical system

Answer(s): B

Explanation:

The first emission control device for automobiles was the positive crankcase ventilation (PCV) system.



A tire that bears the code "P 185/70 R 14" is ________________.

  1. a passenger-car tire that is 70 millimeters high.
  2. a passenger-car tire that is 185 millimeters wide.
  3. a radial tire that is 70 millimeters high.
  4. a P-metric tire that is 70 millimeters wide.

Answer(s): B



In concrete work, to butter a concrete block means to _______________.

  1. put a finishing trowel to it
  2. put a hawk on it
  3. use a jointer on it
  4. put mortar on it

Answer(s): D

Explanation:

Buttering a concrete block means to put the mortar on it. This is usually done by taking the mortar from the hawk and applying it to the block's edges.






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