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Consider the following statements regarding V-belt drive: 
1. The groove angle of the sleeve is less than the belt section angle 
2. The efficiency of a V-belt drive is higher than that of a flat belt drive 
3. The groove angle is so made that the belt gets wedged in the groove 
Which of the above statements are correct?

[ESE (IES) ECE 2017 Non Technical - 1]
A
B
C
D