Robotics Ch. 4 Classification of Robotics (Dinwiddie)

Which of the following are a cost of using hydraulic power?

• ​increased maintenance

• ​hydraulic leaks

• ​increased noise

• ​all of these

​Given a system with a drive pulley with a diameter of 15 in. and a driven pulley with a diameter of 5 in., what is

the speed of the driven pulley if we run the drive pulley at 1750 RPM?

• 8,750 RPM

• 17,500 RPM

• ​5,250 RPM​

• 87.5 RPM

Systems that consist of a Spur gear and a rod or bar that has teeth cut along the length are known as a _______.

• rack and pinion

• worm gear

• harmonic drive

• ball screw

Which type of robotic systems sacrifices a large portion of their work envelope for speed and the benefit of over the work mounting?

• SCARA

• Delta

• Articulated

• Polar

A compound gear _______.

• is the same thing as an idler gear

• has two gears on the same shaft

• is the same thing as the drive gear

• is rarely used in gear trains due to the extreme cost

How much could a system move if the torque of the system is 300 in. lbs. and the diameter of the drive pulley is 12 inches?

• 50 lbs

• 25 lbs

• 3600 lbs

• 90 lbs

Who defines an industrial robot as an actuated mechanism programmable in two or more axes with a degree of autonomy, moving within its environment, to perform intended tasks?

• JIRA

• RIA

• ISO

• EPA

Which of the following is NOT true of the use of stepper motors?

• Stepper motors are often used in open-loop control systems.

• Stepper motors were used in early robots.

• The common feedback device for the stepper motor is an encoder.

• They move a specific amount each time power is applied.

________ have a large shaft with a continuous tooth carved along the outer edge with a nut or block that moves up and down the length of the shaft.

• Helical gears

• Harmonic drives

• Gear trains

• Ball screws

When we use gearing or some other power transmission system to reduce speed, the system often _______ torque.

• has the same

• gains

• looses

• none of these