| 1. | What is the ratio of key way taper ? | |
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1:20
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1:50
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1:100
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1:120
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Report Question| 2. | The thickness of hexagonal lock nut may be the range of _______. (D=diameter of the bolts) ? | |
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0.2d to 0.3d
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0.6d to 0.8d
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1.6d to 1.8d
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3.6d to 4.8d
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| 3. | Which type of joint is easily unlockable ? | |
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welded joint
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mechanical joint
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riveted joint
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threaded joint
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| 4. | The following semicircular key is used for transmission light torque ? | |
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woodruff key
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saddle key
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normal key
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circular key
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| 5. | Which bolt fit in rectangular slot ? | |
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square bolt
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hexagonal bolt
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t-bolt
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hook bolt
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| 6. | A tab washer is used for ? | |
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self locking
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locking the nuts
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avoiding vibration
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fastening fabrication work
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| 7. | The upper portion of a hexagonal nut is chamfered at an angle of ? | |
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75°
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60°
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45°
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35°
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