Which of the following are the advantages of a hydraulic; shaper over mechanically driven shaper? 1. More strokes per minute can he obtained at a given cutting speed 2. The cutting strokes has a definite stopping point 3. It is simpler in construction 4. Cutting speed is constant throughout most of shecurl. Select the correct answer using the codes given below:

Which of the following are the advantages of a hydraulic; shaper over

1.	Which of the following are the advantages of a hydraulic; shaper over mechanically driven shaper? 1. More strokes per minute can he obtained at a given cutting speed 2. The cutting strokes has a definite stopping point 3. It is simpler in construction 4. Cutting speed is constant throughout most of shecurl. Select the correct answer using the codes given below:
A.	1 and 2
B.	1 and 4
C.	2 and 4
D.	1, 3 and 4
Answer» D. 1, 3 and 4

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