# Robotics Pre-test

50 Questions | Total Attempts: 3583  Settings  This is the Robotics Pre-test. You will need the following formulas to complete the exam:

• 1.
Gears may be used to
• A.

Change rotational speed.

• B.

Increase torque.

• C.

Decrease torque.

• D.

Change rotational direction.

• E.

All of the above.

• 2.
The electrical symbol show represents a
• A.

Resistor

• B.

Capacitor

• C.

Battery

• D.

LED

• E.

Switch

• 3.
A battery would most likely be rated with the following information:
• A.

1.5 VAC

• B.

1.5 VDC

• C.

120 Ω

• D.

0.5 A

• 4.
The electrical symbol show represents a
• A.

Resistor

• B.

Capacitor

• C.

Battery

• D.

LED

• E.

Switch

• 5.
An LED is
• A.

A Light Excited Device.

• B.

A Light Emitting Diode.

• C.

Dependent on the direction of current flow.

• D.

• E.

• 6.
The electrical symbol show represents a
• A.

Resistor.

• B.

Capacitor.

• C.

Battery.

• D.

LED.

• E.

Switch.

• 7.
The smallest gear in a gearbox is called
• A.

Rack gear

• B.

Wheel gear

• C.

Pinion gear

• D.

Worm gear

• E.

Spur gear

• 8.
The electrical symbol show represents a
• A.

Resistor.

• B.

Capacitor.

• C.

Battery.

• D.

LED.

• E.

Switch.

• 9.
The largest gear in a gearbox is called
• A.

Rack gear

• B.

Wheel gear

• C.

Pinion gear

• D.

Worm gear

• E.

Spur gear

• 10.
The electrical symbol show represents a
• A.

Resistor.

• B.

Capacitor.

• C.

Battery.

• D.

LED.

• E.

Switch.

• 11.
The simple circuit shown is an example of a
• A.

Series-circuit.

• B.

Amplifier circuit.

• C.

Parallel-circuit.

• D.

Logic circuit

• E.

Voltage-current circuit.

• 12.
A gear with radial teeth that meshes with a similar gear having a parallel axis is called
• A.

Rack gear

• B.

Wheel gear

• C.

Pinion gear

• D.

Worm gear

• E.

Spur gear

• 13.
The simple circuit shown is an example of a
• A.

Series circuit

• B.

Amplifier circuit

• C.

Parallel circuit

• D.

Logic circuit

• E.

Voltage-current circuit

• 14.
A gear with angled teeth transmitting torque between non-parallel and non-intersecting axes is called a
• A.

Rack gear.

• B.

Wheel gear.

• C.

Pinion gear.

• D.

Worm gear.

• E.

Spur gear.

• 15.
If gear one (G1) drives gear two (G2), gear two will have a
• A.

Faster speed in opposite rotational direction.

• B.

Slower speed in same rotational direction.

• C.

Same speed in opposite rotational direction.

• D.

Slower speed in opposite rotational direction.

• E.

Faster speed in same rotational direction.

• 16.
A student uses a multimeter to measure a battery’s voltage and obtains the value
• A.

3.0 VDC

• B.

120 VAC.

• C.

470 Ω.

• D.

1.5 A.

• E.

300 µf.

• 17.
A student uses a multimeter to measure current and obtains the value
• A.

3.0 VDC

• B.

120 VAC.

• C.

470 Ω.

• D.

1.5 A.

• E.

300 µf.

• 18.
A robot has an average speed of 4.0 in/s.  How long will it take the robot to travel 60 in?
• A.

64s

• B.

240s

• C.

60s

• D.

15s

• E.

30s

• 19.
If a resistor has color bands yellow-violet-brown-gold (see chart below), its rated value would be.
• A.

4700 Ω ± 5%

• B.

110 Ω ± 5%

• C.

470 Ω ± 5%

• D.

174 Ω ± 5%

• E.

280 Ω ± 5%

• 20.
What is the 4-band color coding for a 120 Ω resistor with a 10% tolerance?
• A.

Black-brown-red-silver

• B.

Brown-red-black-gold

• C.

Brown-black-orange-red

• D.

Brown-red-brown-silver

• E.

Red-black-brown-brown

• 21.
A student uses a multimeter to measure resistance and obtains the value
• A.

3.0 VDC.

• B.

120 VAC.

• C.

470 Ω.

• D.

1.5 A.

• E.

300 µf.

• 22.
Asimov’s short story Runaround is significant because it
• A.

Was the first robot story.

• B.

Introduced the Rules of Robotics.

• C.

Used the term ‘robotics’.

• D.

• E.

• 23.
The word robot comes from the Czech term robota meaning
• A.

Mechanical man.

• B.

Forced laborer or serf.

• C.

Mechatronics.

• D.

Man servant.

• E.

Indentured servant.

• 24.
Which characteristics define a robot?
• A.

Multifunction ability

• B.

Ability to be programmed

• C.

Autonomous operation

• D.

All of the above

• E.

‘b’ and ‘c’ only

• 25.
The fictional characters Robocop, Data (of Star Trek) and R2D2 (of Star Wars) are
• A.

A cyborg, android and robot, respectively.

• B.

A robot, android and cyborg, respectively.

• C.

An android, robot and cyborg, respectively.

• D.

A robot, cyborg and android, respectively.

• E.

An android, cyborg and robot, respectively.

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