Objective Questions 435
dharm
d:\N-Design\Des22-1.pm5
15. Mis-alignment of shafts in compression coupling is taken care of by _____.
17. When the power transmission from one shaft to another is intermittent, _____ coupling
is used.
18. The power is transmitted in cone coupling by _____, whereas in claw coupling, by
_____.
19. Non-aligned couplings are used to transmit power between two shafts which are _____
_____.
20. Non-aligned _____ coupling is recommended for connecting intersecting shafts.
21. Oldham coupling is recommended to connect two _____ shafts.
22. Flexibility in cushion coupling is provided by .
CHAPTER 8
1. In joints for CI pipes, the flanges are not integral with the pipe lines (True/False).
2. Socket and spigot joints are used for connecting underground pipe lines (True/False).
3. For high pressure application, the pipe is strengthened by _.
4. For larger diameter pipes, the flanges are strengthened by _____.
5. In copper pipes, flanges are _____.
(a) Integral with pipe (b) Brazed to the pipe (c) Keyed to the pipe
6. For solid drawn WI or steel pipes, the flanges are _____.
(a) Screwed (b) Keyed (c) Brazed
7. joint is used on pipes which can not be connected using a coupler.
8. facilitates making and breaking of the joints, without disturbing the pipe
layout.
9. _____ joints are used to accomodate expansion or contraction due to variation of fluid
temperature.
10. _ is placed between two pipes to act as expansion joint.
11. __ packing prevents the leakage in stuffing boxes.
12. When expansion joint is used, the pipes are __.
(a) Rigidly clamped (b) Supported on rollers
13. Elbows, Tees and crosses are used to connect or branch-off the pipes at .
14. is used to connect two pipes of different diameter.
15. __ is used to close the end of a pipe.
16. __ is a small pipe, threaded throughout on the outside.
17. With reference to pipe fitting, MTA stands for _____.
18. With reference to pipe fitting, FTA stands for _____.
19. __ is used to connect a PVC pipe line to a metal pipe.
20. __ is used to connect metal pipe and all types of valves, etc.
21. __ is the equivalent PVC pipe for half inch GI pipe.
22. 50 mm is the equivalent PVC pipe for __ GI pipe.
23. PVC pipes are joined by __ cement.
