Discussion
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- Question
In radial cams, the follower moves
Options- A. in a direction perpendicular to the cam axis
- B. in a direction parallel to the cam axis
- C. in any direction irrespective of cam axis
- D. along the cam axis
- Correct Answer
- in a direction perpendicular to the cam axis
- 1. In a reciprocating steam engine, the heat energy in the steam is converted into mechanical work by the to and fro motion of the piston.
Options- A. Agree
- B. Disagree Discuss
- 2. The effect of wire drawing is to decrease the area of indicator diagram and thus work done by the engine is reduced.
Options- A. Agree
- B. Disagree Discuss
- 3. Which of the following statement is correct?
Options- A. Lancashire boiler is a fire tube boiler.
- B. Fire tube boilers are internally fired.
- C. Babcock and Wilcox boiler is a water tube boiler.
- D. all of the above Discuss
- 4. The length of shell of a Locomotive boiler is
Options- A. 1 m
- B. 2 m
- C. 3 m
- D. 4 m Discuss
- 5. The function of a piston rod is
Options- A. to guide motion of the piston rod and to prevent it from bending
- B. to transfer motion from the piston to the cross head
- C. to convert heat energy of the steam into mechanical work
- D. to exhust steam from the cylinder at proper moment Discuss
- 6. 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 Discuss
- 7. When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the
Options- A. head
- B. shank
- C. thread
- D. middle Discuss
- 8. In unilateral system of tolerance, the tolerance is allowed on
Options- A. one side of the actual size
- B. one side of the nominal size
- C. both sides of the actual size
- D. both sides of the nominal size Discuss
- 9. In a hydrodynamic lubricated bearing
Options- A. there is a thick film of lubricant between the journal and the bearing
- B. there is a thin film of lubricant between the journal and the bearing
- C. there is no lubricant between the journal and the bearing
- D. the lubricant is forced between the journal and the bearing, by external pressure Discuss
- 10. Stress concentration is caused due to
Options- A. variations in load acting on a member
- B. variations in properties of materials in a member
- C. abrupt change of cross-section
- D. all of these Discuss
Machine Design problems
Search Results
Correct Answer: Agree
Correct Answer: Agree
Correct Answer: all of the above
Correct Answer: 4 m
Correct Answer: to transfer motion from the piston to the cross head
Correct Answer: buttress threads
Correct Answer: thread
Correct Answer: one side of the nominal size
Correct Answer: there is a thick film of lubricant between the journal and the bearing
Correct Answer: abrupt change of cross-section
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