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- Question
In a watch, the spring is used to store strain energy. This energy is released
Options- A. to stop the watch
- B. to run the watch
- C. to change the time
- D. all of these
- Correct Answer
- to run the watch
- 1. Which of the following statement is wrong?
Options- A. The angular clearance on dies varies from 0.5° to 1°.
- B. In drawing operation, the metal flows due to plasticity.
- C. In press operation, the size of the pierced hole is independent of the size of punch.
- D. none of the above Discuss
- 2. Combined carbon in iron makes the metal
Options- A. soft and gives coarse grained crystalline structure
- B. soft and gives a fine grained crystalline structure
- C. hard and gives a coarse grained crystalline structure
- D. hard and gives a fine grained crystalline structure Discuss
- 3. The action of a centrifugal pump is that of a reversed reaction turbine.
Options- A. Correct
- B. Incorrect Discuss
- 4. A thin spherical shell of diameter (d) and thickness (t) is subjected to an internal pressure (p). The stress in the shell material is
Options- A. pd/t
- B. pd/2t
- C. pd/4t
- D. pd/8t Discuss
- 5. The bending moment of a cantilever beam of length l and carrying a gradually varying load from zero at free end and w per unit length at the fixed end is __________ at the fixed end.
Options- A. wl/2
- B. wl
- C. wl2/2
- D. wl2/6 Discuss
- 6. Thermosetting plastics are those materials which
Options- A. are formed into shape under heat and pressure and results in a permanently hard product
- B. do not become hard with the application of heat and pressure and no chemical change occurs
- C. are flexible and can withstand considerable wear under suitable conditions
- D. are used as a friction lining for clutches and brakes Discuss
- 7. A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________ with both ends hinged.
Options- A. l/8
- B. l/4
- C. l/2
- D. l Discuss
- 8. The condition of refrigerant after passing through the condenser in a vapour compression system is
Options- A. saturated liquid
- B. wet vapour
- C. dry saturated vapour
- D. superheated vapour Discuss
- 9. In a convergent divergent nozzle, the discharge depends upon the initial conditions of steam and the area of nozzle at throat.
Options- A. Correct
- B. Incorrect Discuss
- 10. The angle between the face of the tool and a line tangent to the machined surface at the cutting point is called cutting angle.
Options- A. Correct
- B. Incorrect Discuss
More questions
Correct Answer: none of the above
Correct Answer: hard and gives a fine grained crystalline structure
Correct Answer: Correct
Correct Answer: pd/4t
Correct Answer: wl2/6
Correct Answer: are formed into shape under heat and pressure and results in a permanently hard product
Correct Answer: l/2
Correct Answer: saturated liquid
Correct Answer: Correct
Correct Answer: Correct
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