What is the load on a dc motor?

• The field current

• The armature current

• The mechanical device the motor moves

• The total current drawn from the source

How can the direction of rotation be changed in a dc motor?

• Only by reversing the field connections

• Only by reversing the armature connections

• By reversing both the armature connections and the field connections

• By reversing either the armature connections or the field connections

Which of the following is not a part of a motor?

• Stator

• Rotor

• Yoke

• None of the above

Which of the following bolts are stronger?

• Grade 2

• Grade 5

• Grade 8

• None of the above

Which of the following is a common type of vise used for mechanical work?

• pipe vise

• bench vise

• machine vise

• All of the above

Mallet heads are constructed from which of the following materials?

• Brass only

• Plastics only

• Rubber only

• Brass, plastics, and rubber

What is the prime characteristic of aluminum?

• Lightweight

• Low melting point

• Ease of fabrication

• Corrosion-resistant properties

If bar Y moves at a constant speed to the left, how does bar X move?

• Left, Faster

• Left, Same

• Right, Same

• Right, Slower

If drive wheel X rotates clockwise at a speed of 10 rpms, how does wheel Y turn?

• Counterclockwise Faster

• Clockwise Slower

• Clockwise Faster

• Counterclockwise Same

If drive wheel X rotates clockwise at a speed of 10 rpms, how does wheel Y turn?

• Counterclockwise faster

• Clockwise faster

• Counterclockwise same

• Clockwise same