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WorksheetsRobotics Webxam Practice Test
Total questions: 33
Worksheet time: 17mins
What is the main challenge when working with people from different cultures?
Time zone differences
Language barrier and cultural customs
Different work ethics
Varied educational backgrounds
What is one pro and one con of using digital communication?
Pro: Costly, Con: Fast
Pro: Slow, Con: Secure
Pro: Quick and easy, Con: Can't read intent or tone
Pro: Personal, Con: Unreliable
What should you do if a problem arises at work?
Ignore it
Tell someone in person immediately
Send an email later
Wait for it to resolve itself
What does RPM stand for?
Revolutions Per Minute
Rotations Per Minute
Rounds Per Minute
Rotations Per Meter
How do you write gear ratio?
Teeth of Driven: Teeth of Driving
Teeth of Driving: Teeth of Driven
Teeth of Driving: Teeth of Gear
Teeth of Gear: Teeth of Driven
What are the two purposes of an Idler gear?
Increases speed and reduces noise
Changes direction and fills a gap
Reduces friction and increases torque
Increases power and reduces speed
What does the NEC stand for and what do they do?
National Energy Commission, regulate energy usage
National Electrical Code, set safety standards
National Engineering Council, certify engineers
National Environmental Code, protect wildlife
What does AC power stand for and give an example of a device that uses it?
Alternating current, example: TV
Active current, example: Radio
Amplified current, example: Computer
Analog current, example: Lamp
What does DC power stand for and give an example of a device that uses it?
Direct current, example: Flashlight
Dynamic current, example: Fan
Digital current, example: Phone
Distributed current, example: Heater
What kind of battery should be used in an apple watch?
Nickel-Cadmium Battery
Alkaline Battery
Lithium Ion Battery
Lead Acid Battery
What is grounding used for in electricity?
Allow excess electricity to safely escape.
Increase voltage.
Decrease current.
Store electrical energy.
What does a Transformer do for electricity?
Changes voltage to be higher or lower.
Converts AC to DC.
Stores electrical energy.
Increases current.
A Parallel circuit has constant _______.
Voltage
Current
Resistance
Power
A series circuit has constant (a) .
What does this symbol represent?
It is a switch that is open.
It is a closed switch.
It is a resistor.
It is a battery.
When a switch is OPEN what is true about the lights in the circuit?
The circuit is ‘off’ and the lights will not be working. Power cannot flow if the switch is open.
The lights will be brighter.
The circuit is ‘on’ and the lights will be working.
The lights will flicker.
What type of circuit is shown below?
Parallel
Series
Open
Closed
What is the Voltage in a circuit if the Current is 10 Amps and the Resistance is 2 Ohms?
V = I*R so V = 10 amps * 2 ohms = 20 Volts
V = I*R so V = 10 amps * 2 ohms = 5 Volts
V = I*R so V = 10 amps * 2 ohms = 10 Volts
V = I*R so V = 10 amps * 2 ohms = 15 Volts
You’re called to fix a pneumatic system that is not working, what should you check first? What is the most likely cause?
The seal including o-rings, gaskets, and rubber. Leakage is likely the cause.
The electrical wiring.
The hydraulic fluid levels.
The air pressure gauge.
For safety reasons, when you are done using a pneumatic or hydraulic system what is the first thing you should do?
Depressurize the system.
Turn off the power supply.
Check for leaks.
Refill the hydraulic fluid.
What is the term for air bubbles causing failure in a hydraulic system?
Cavitation
Aeration
Vaporization
Compression
You’ve been asked to build a lift for a 1000 pound car, what type of system should be used pneumatic or hydraulic?
Hydraulic is considered the stronger system
Pneumatic is more efficient
Pneumatic is more cost-effective
Hydraulic is less reliable
Motor converts what type of energy to mechanical energy?
Electrical energy
Chemical energy
Thermal energy
Solar energy
Engine converts what type of energy to mechanical energy?
Chemical energy
Electrical energy
Thermal energy
Solar energy
What type of motor is likely used for an industrial, large application?
Three-phase instead of single-phase
Single-phase instead of three-phase
Direct current instead of alternating current
Alternating current instead of direct current
What is the efficiency of the Baldor motor shown in the nameplate?
91.7%
85.0%
88.5%
90.0%
What is the current of the Siemens motor shown in the nameplate?
35.0 Amps
30.0 Amps
40.0 Amps
25.0 Amps
What is the equation for efficiency?
(Output/Input) * 100 = Efficiency (%)
(Input/Output) * 100 = Efficiency (%)
(Output - Input) * 100 = Efficiency (%)
(Input + Output) * 100 = Efficiency (%)
How efficient is the motor if the input power is 10 Watts and the output is 8 Watts?
8 Watts/ 10 Watts = 0.8 * 100 = 80%
10 Watts/ 8 Watts = 1.25 * 100 = 125%
8 Watts/ 10 Watts = 0.8 * 100 = 75%
10 Watts/ 8 Watts = 1.25 * 100 = 100%
If the output power of a motor is 12 Watts and the input is only 10 Watts, the motor is ______.
Overloaded
Efficient
Underloaded
Faulty
What type of document should you use to keep track of a budget or numerical data?
Spreadsheet
Word Document
Presentation
If a product is under high demand, are the prices likely to be low or high?
Prices will be high because more people want it, so they can charge more.
Prices will be low because more people want it, so they can sell more.
Prices will remain the same regardless of demand.
Prices will fluctuate randomly.
What deductions should you expect out of your paycheck?
Taxes, Health Insurance, Social Security.
Rent, Utilities, Groceries.
Entertainment, Travel, Dining.
Savings, Investments, Donations.
