A. better insulation should be put over pipe and better one over it
B. inferior insulation should be put over pipe and better one over it
C. both may be put in any order
D. whether to put inferior OIL over pipe or the better one would depend on steam temperature
E. unpredictable
Mechanical Engineering Mcqs
Mechanical Engineering Mcqs for Preparation of Job Test and interview, freshers, Students, competitive exams etc. Multiple choice questions here are on topics such as Machine Design, Theory of Machines, Hydraulic Machines etc.
| MECHANICAL ENGINEERING MCQS | |||
|---|---|---|---|
| 1. | Engineering Materials | 2. | Engineering Mechanics |
| 3. | Fluid Mechanics | 4. | Heat Transfer |
| 5. | Hydraulic Machines | 6. | I.C. Engines |
| 7. | Machine Design | 8. | Nuclear Power Plants |
| 9. | Production Technology | 10. | Workshop Technology |
| 11. | Refrigeration and Air Conditioning | 12. | Steam Boilers, Engines, Nozzles and Turbines |
| 13. | Compressors, Gas Turbines and Jet Engines | 14. | Strength of Materials |
| 15. | Theory of Machines | 16. | Thermodynamics |
A. cold water inlet and outlet
B. hot medium inlet and outlet
C. hot medium outlet and cold water inlet
D. hot medium outlet and cold water outlet
E. none of the above
A. Grashoff number
B. Nusselt number
C. Weber number
D. Prandtl number
E. Reynold number
A. higher
B. lower
C. same
D. depends upon the shape of body
E. none of the above
A. 1 :1
B. 2: 1
C. 1 : 2
D. 4 : 1
E. 1 : 4
A. thermal resistance
B. thermal coefficient
C. temperature gradient
D. thermal conductivity
E. heat-transfer
A. varies with temperature
B. varies with wavelength of the incident ray
C. is equal to its emissivity
D. does not vary with temperature and. wavelength of the incident ray
E. none of the above
A. emissivity
B. transmissivity
C. reflectivity
D. intensity of radiation
E. absorptivity
A. convection
B. radiation
C. conduction
D. both convection and conduction
E. none of the above
A. m2/hr
B. m2/hr°C
C. kcal/m2 hr
D. kcal/m.hr°C
E. kcal/m2 hr°C
