DTS QUIZ-12

What is the tooth terminology for straight bevel gears?

• a. Pitch
• b. Diametral Pitch
• c. Addendum
• d. Pressure Angle

What is the equivalent number of teeth for straight bevel gears?

• a. 10
• b. 20
• c. 30
• d. 40

What is the terminology for cross helical gears?

• a. Addendum
• b. Dedendum
• c. Helix Angle
• d. Diametral Pitch

What are the tooth forces and stresses for straight bevel gears?

• a. Bending
• b. Contact
• c. Shear
• d. All of the above

What is the advantage of worm gears?

• a. High speed ratio
• b. High efficiency
• c. High load capacity
• d. All of the above

What is the material commonly used for worm gears?

• a. Cast Iron
• b. Steel
• c. Aluminum
• d. Copper

If the pitch diameter of a straight bevel gear is 50 mm, and the number of teeth is 20, what is the diametral pitch?

• a. 1
• b. 2
• c. 3
• d. 4

What is the efficiency of a worm gear typically range from?

• a. 30-40%
• b. 50-60%
• c. 70-80%
• d. 90-100%

If the helix angle of a cross helical gear pair is 30 degrees, and the center distance is 100 mm, what is the module if the gear has 20 teeth?

• a. 1
• b. 2
• c. 3
• d. 4