# Gear and Gear Trains – 2 MCQ’s

This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Gear and Gear Trains – 2″.

1. What is the train value of a gear train if the velocity ratio is 1:5?
a) 2:1
b) 3:2
c) 4:3
d) 5:1

2. What is the velocity ratio of two gears if the driver gear has angular velocity of 20m/s and driven gear has angular velocity of 10m/s?
a) 2:1
b) 3:2
c) 4:3
d) 5:1

3. What is the velocity ratio of a gear train if the train value is 2:5?
a) 2:1
b) 3:2
c) 4:3
d) 5:2

4. What is the angular velocity of driven gear if the driver gear has angular velocity of 30m/s and velocity ratio of two gears is 3:2?
a) 10m/s
b) 20m/s
c) 30m/s
d) 40m/s

5. Spur gears can transmit power between perpendicular shafts.
a) True
b) False

6. Which gear train is also called as “Sun and planet gear train”?
a) Simple gear train
b) Reverted gear train
c) Compound gear train
d) Epicyclic gear train

7. Which gear cannot connect two parallel shafts?
a) Spur gear
b) Helical gear
c) Bevel gear
d) Double helical gear

8. Which gear can be used to transmit rectilinear motion?
a) Spur gear
b) Helical gear
c) Bevel gear
d) Rack and pinion gear

9. Which gear train contains more than one gear in a single shaft?
a) Simple gear train
b) Helical gear train
c) Compound gear train
d) Epicyclic gear train

10. Which gear train contains only one gear in a single shaft and the driven gear does not revolve driven gear around it?
a) Simple gear train
b) Reverted gear train
c) Compound gear train
d) Epicyclic gear train

11. What is the velocity ratio of two gears if the driver gear has angular velocity of 15m/s and driven gear has angular velocity of 10m/s?
a) 2:1
b) 3:2
c) 4:3
d) 5:1

12. In reverted gear train, the input and output gears should be co-axial.
a) True
b) False

13. What is the velocity ratio of a gear train if the train value is 2:7?
a) 2:1
b) 2: 7
c) 7:2
d) 5:1

14. Reverted gear train is also called as planetary gear train.
a) True
b) False

15. Rack and pinion gear can be termed as linear actuator.
a) True
b) False

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