Exam 3: Basic Theories and Math

Forces can be _____.

Torque is expressed in pounds per foot (lbs.-ft).

When applied forces are balanced, the object is said to be in ____________________.

Engine power is measured in _____.

What is tensile strength?

If the driving gear has 11 teeth and the driven gear has 44 teeth, the gear ratio equals ____________________ to 1.

The coefficient of drag (Cd)is _____.

The _____ of an engine expresses how much the air and fuel mixture will be compressed as the cylinder moves from BDC to TDC.

The process that increases the hardness of the outer surfaces of steel while leaving the core relatively soft is called ______.

Iron combines with hydrogen to form rust.

The volume of an engine's cylinders determines its size, which is expressed as ____________________.

A galvanized part is made of iron or steel that has been coated with _____.

Technician A says Newton's first law of motion is the law of inertia. Technician B says Newton's second law of motion says that for every action, there is an equal and opposite reaction. Who is correct?

Heat measurement is being discussed . Technician A says a BTU is the amount of heat it takes to raise the temperature of one gram of water one degree Fahrenheit. Technician B say a calorie is the amount of heat it takes to raise the temperature of one pound of water one degree Celsius. Who is correct?

____________________ balance exists when the weight thrown to the sides of a tire is equal when the assembly is rotating.

Calculate the displacement in liters of a four cylinder engine that has a bore of 88mm and a stroke of 94mm.

Technician A says kinetic energy in the crankshaft is converted into electrical energy by the generator. Technician B says electrical energy in the generator is converted into chemical energy in the battery. Who is correct?

When a piece of wood is burned, its energy is destroyed.

Oxygen exists as a single atom.

When the weight of a wheel and tire assembly is distributed equally around the center of wheel rotation, the wheel and tire have the proper dynamic balance.