• Mechnical Engineering Reference

# Gears MCQ Questions - Machine Design

Gears MCQs : Here you will find MCQ Questions related to "Gears" in Machine Design. These Gears MCQ Questions Will help you to improve your Machine Design knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.

Question 1

____________ are used for power transmission in case of intersecting shafts.

A. Bevel gears
B. Helical Gear
C. Spur Gear
D. Constant Gear

Question 2

Tooth profiles are said to have conjugate curves if?

A. Infinitely small angular velocity ratio
B. Variable angular velocity ratio
C. They have constant angular velocity ratio
D. None of the mentioned

Question 3

Which of the following is true?

A. Gear drive don’t require precise alignment of shafts.
B. Spur gears can be used only when the two shafts are parallel.
C. The teeth of the helical gears are cut parallel to the shaft axis.
D. None of the above

Question 4

Herringbone gear can be used in

A. Intersecting shafts only
B. Parallel shafts only
C. Both intersection and parallel shafts
D. None of the above

Question 5

_______ have the shape of a truncated cone and tooth is cut straight or spiral.

A. Bevel gears
B. Helical Gear
C. Spur Gear
D. Constant Gear

Question 6

Greater velocity leads to ________ in size of gear wheel which results in size of gearbox.

A. decrease
B. remains same
C. increase
D. None of the above

Question 7

Which of the folllowing is false?

A. Velocity ratio is the ratio angular velocity of driving gear to that of driven gear.
B. Velocity ratio and transmission ratio are the same thing.
C. Pressure angle remains constant in case of involute profile.
D. All of the above

Question 8

Contact ratio is always

A. equal to 1
B. greater than 1
C. less than 1
D. Can not say

Question 9

Diameteral pitch is 5, then calculate module of the gear.

A. 0.2
B. 0.4
C. 5
D. 10