mechanical mechatronics Quiz 3

Which of the following is the part of an electric motor that provides an attachment point for power transmission?

• Armature

• Mounting base

• Bearing

• Shaft

Which of the following is the least accurate method of shaft alignment?

• Laser alignment method

• Reverse indicator method

• Straightedge and feeler gauge method

• Face and rim dial indicator method

Which of the following is the bearing used to mount a shaft perpendicular to the mounting surface?

• Pillow block mount

• Flange Mount

• Collar mount

• Radial Mount

Which of the following is the bearing used to mount a shaft parallel to the mounting surface?

• Pillow block mount

• Stand-off mount

• Collar mount

• Radial Mount

Which of the following type of bearing load is present in a power transmission system?

• Articulated

• Complex

• Radial

• Tangent

A water pump driven by an electric motor, which is connected to it by a mechanical coupling. The pump is leaking badly and is replaced by an identical new pump. Which of the following procedures is MOST important to ensure reliable long-term operation?

• Replacing the new pump

• Aligning the shafts of the pump and the motor

• Reducing the size of the motor fuses

• Replacing the coupling

When measuring a motor current draw, it is proper to:

• Stop the motor

• Place the ammeter clamp-on around the incoming power legs

• Place the ammeter in parallel with the incoming legs

• Disconnect the load

Which of the following is a determining factor in the process of specifying a shaft in a power transmission system?

• Selection of the material from which the shaft will be made

• Determination of the power or torque to be transmitted by the shaft

• Consideration of the manner and type of loading this shaft will experience

• All of the above

Which of the following is the primary function of a bearing?

• To compensate for the axial misalignment in a power transmission system

• To allow smooth, low friction motion between two surfaces

• To isolate shaft vibration from a motor or power source in the system

• To dissipate heat produced as a result of rotational friction

In the profile diagram shown, which of the following specifies the dwell periods?

• T1

• T2,T4

• T2

• T1,T3