Discussion
Home ‣ Mechanical Engineering ‣ Machine Design See What Others Are Saying!
- Question
When screw threads are to be used in a situation where power is being transmitted in one direction only, then the screw threads suitable for this will be
Options- A. square threads
- B. acme threads
- C. knuckle threads
- D. buttress threads
- Correct Answer
- buttress threads
- 1. According to Muther, the basic principle of best layout is
Options- A. principle of over-all integration
- B. principle of flow
- C. principle of flexibility
- D. all of these Discuss
- 2. The specific speed of a centrifugal pump, delivering 750 litres of water per second against a head of 15 metres at 725 r.p.m., is
Options- A. 24.8 r.p.m.
- B. 48.2 r.p.m
- C. 82.4 r.p.m.
- D. 248 r.p.m Discuss
- 3. Every direct stress is always accompanied by a strain in its own direction and an opposite kind of strain in every direction, at right angles to it. Such a strain is known as
Options- A. linear strain
- B. lateral strain
- C. volumetric strain
- D. shear strain Discuss
- 4. The inlet pressure is always __________ the discharge pressure.
Options- A. equal to
- B. less than
- C. more than Discuss
- 5. According to Euler's column theory, the crippling load for a column of length (l) fixed at both ends is __________ the crippling load for a similar column hinged at both ends.
Options- A. equal to
- B. two times
- C. four times
- D. eight times Discuss
- 6. The resultant stress on an inclined plane which is inclined at an angle ? to the normal cross-section of a body which is subjected to a direct tensile stress (?) in one plane, is
Options- A. ? sin ?
- B. ? cos ?
- C. ? sin 2?
- D. ? cos 2? Discuss
- 7. The maximum shear stress developed in a beam of rectangular section is __________ the average shear stress.
Options- A. equal to
- B. 4/3 times
- C. 1.5 times
- D. twice Discuss
- 8. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece. Which of the following machine will be used?
Options- A. Sensitive drilling machine
- B. Radial drilling machine
- C. Gang drilling machine
- D. Multiple spindle drilling machine Discuss
- 9. The maximum shear stress in a thin spherical shell subjected to an internal pressure (p) is zero.
Options- A. Yes
- B. No Discuss
- 10. At the neutral axis of a beam
Options- A. the layers are subjected to maximum bending stress
- B. the layers are subjected to minimum bending stress
- C. the layers are subjected to compression
- D. the layers do not undergo any strain Discuss
More questions
Correct Answer: all of these
Correct Answer: 82.4 r.p.m.
Correct Answer: lateral strain
Correct Answer: less than
Correct Answer: four times
Correct Answer: ? cos ?
Correct Answer: 1.5 times
Correct Answer: Gang drilling machine
Correct Answer: Yes
Correct Answer: the layers do not undergo any strain
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.