434 Machine Drawing
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d:\N-Design\Des22-1.pm5
7. Sunk keys are used for light duties (True/False).
8. Woodruff key is a type of sunk key (True/False).
9. Feather key is a sunk key with uniform width and thickness (True/False).
10. Feather keys are used with _____.
(a) Gears (b) Flywheel (c) Pulleys.
11. _____ fit exists between feather key and keyway.
12. A knuckle joint is a _____ joint used to fasten two circular rods.
13. Knuckle joints are used in _____ links.
14. A cotter of rectangular cross-sections has uniform thickness/width, however it is varying
in width/thickness.
15. A cotter joint with a jib is used to join two circular rods (True/False).
16. Pin joints fasten two rods under axial loads (True/False).
17. A knuckle joint is used to fasten two square rods (True/False).
CHAPTER 7
1. Rigid couplings are used for shafts which are _____.
(a) Slightly mis-aligned (b) Inclined (c) Co-axial
2. In a butt or half-lap coupling, the sleeve is normally fitted to the shafts by means of
.
(a) Saddle key (b) Feather key (c) tight fit
3. In split-muff couplings, the number of bolts will always be _____.
(a) Even (b) Four (c) Odd
4. In the solid flanged couplings, the flange is _____.
(a) Separate, mounted using a sunk key
(b) Integral with the shaft
(c) Fitted with interference fit
5. In flanged coupling, the flanges are joined together by means of _____.
(a) Hex. headed bolts (b) Headless taper bolts (c) Key
6. In solid flanged coupling, the flanges are joined by means of _____.
(a) Hex. headed bolts (b) Headless taper bolts (c) Cotter pin
7. For ensuring correct alignment; in flanged coupling _____ is provided.
8. A coupling is called protected flanged coupling because _.
9. Shaft couplings are permanent in nature (True/False).
10. Shaft couplings are used only to take axial loads (True/False).
11. A universal coupling connects two shafts, only when the angle between them is very small
(True/False).
12. An Oldham coupling connects two shafts, when they are _____.
(a) Intersecting (b) Parallel (c) Coaxial
13. The inevitable bearing wear is taken care of in .
(a) Rigid couplings (b) Dis-engaging couplings (c) Flexible couplings
14. Relative rotation between the shafts in bushed-pin type flanged coupling is taken
care of by .
