NOCTI (Unit 6) Engineering Systems

The relationship of force, pressure, and piston area in an air cylinder is represented by:

• pressure = force - area

• force = pressure x area

• area = pressure / force

• force = area + pressure

Calculate the flow-out of a pipe per hour if there are 180 gallons per minute.

• 9,500 gallons/hour

• 10,000 gallons/hour

• 10,800 gallons/hour

• 12,250 gallons/hour

What is the equation for the basic unit of electrical power (the watt)?

• P = I²R

• P = E/R²

• P = ER

• P = IR²

Using Ohm’s Law, how much current is going through a circuit that includes 15.5 Volts and 5 Ohms of resistance?

• 3.1 amps

• 7.75 amps

• 31.0 amps

• 77.5 amps

In the DC circuit below, if R5 burns open, the total current:

• increases

• decreases

• remains the same

• goes to zero

What is the Fahrenheit equivalent of 35 degrees Celsius?

• 87 degrees Fahrenheit

• 95 degrees Fahrenheit

• 102 degrees Fahrenheit

• 115 degrees Fahrenheit

A knitting needle is an example of which type of simple machine?

• lever

• wedge

• inclined plane

• pulley

Gauge pressure at sea level is:

• 0 psi

• 3.14 psi

• 14.70 psi

• 29.40 psi

The binary number 100101 equals:

• 25

• 37

• 45

• 52

A farad is a unit of:

• capacitance

• current

• voltage

• resistance