MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Automotive Engine Components Design knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Calculate the thickness of the piston head by strength criteria, given D=250mm, Pmax=3MPa, b= 43N/mm2. |
| A. | 23.92mm |
| B. | 32.85mm |
| C. | 43.3mm |
| D. | 28.593mm |
| Answer» E. | |
| 2. |
Calculate the thickness of the piston head based on head dissipation, given H=5398.82, k=46.8, (Tc-Te)=200? |
| A. | 45.92mm |
| B. | 30.85mm |
| C. | 43.3mm |
| D. | 35.98mm |
| Answer» B. 30.85mm | |
| 3. |
Calculate the amount of heat conducted through piston head, when C=0.05, HCV=47 103 KJ/Kg, m=0.25 Kg/Kw/s, BP=8W? |
| A. | 4500KJ |
| B. | 450KJ |
| C. | 470KJ |
| D. | 4700KJ |
| Answer» E. | |
| 4. |
Bore diameter is 150mm, calculate the thickness based on Held and favary formula? |
| A. | 6.3mm |
| B. | 5.7mm |
| C. | 6.3mm<sup>2</sup> |
| D. | 5.7mm<sup>2</sup> |
| Answer» B. 5.7mm | |
| 5. |
Which of the mentioned below is used to calculate the thickness of the piston head based on heat dissipation? |
| A. | t<sub>h</sub>= ( frac{T}{12.56K(T_c-T_e)} ) 10<sup>3</sup> |
| B. | H= ( frac{H}{12.56K(T_c-T_e)} ) 10<sup>3</sup> |
| C. | t<sub>h</sub>= ( frac{H}{12.56K(T_c-T_e)} ) 10<sup>3</sup> |
| D. | t<sub>h</sub>= ( frac{m}{12.56K(T_c-T_e)} ) 10<sup>3</sup> |
| Answer» D. t<sub>h</sub>= ( frac{m}{12.56K(T_c-T_e)} ) 10<sup>3</sup> | |
| 6. |
Which of the mentioned below is the Held and favary for the thickness of the piston head? |
| A. | t<sub>h</sub>=0.032D+1.5 |
| B. | t<sub>h</sub>=0.032D+1.5d |
| C. | t<sub>h</sub>=0.032D+1.5h |
| D. | t<sub>h</sub>=0.032V+1.5D |
| Answer» B. t<sub>h</sub>=0.032D+1.5d | |
| 7. |
Which of the mentioned below is the Grashoff s formula? |
| A. | t<sub>h</sub>=D ( sqrt{ frac{3}{16} frac{P_{max}}{T}} ) |
| B. | t<sub>h</sub>=D ( sqrt{ frac{3}{16} frac{P_{max}}{ sigma_b}} ) |
| C. | t<sub>h</sub>=D ( sqrt{ frac{3}{16} frac{P_{max}}{BP}} ) |
| D. | t<sub>h</sub>=D ( sqrt{ frac{3}{16} frac{P_{max}}{IP}} ) |
| Answer» C. t<sub>h</sub>=D ( sqrt{ frac{3}{16} frac{P_{max}}{BP}} ) | |
| 8. |
Which are the two criteria for calculating the thickness of the piston head? |
| A. | Heat and Strain |
| B. | Strain and stress |
| C. | Fracture and Strength |
| D. | Strength and Heat dissipation |
| Answer» E. | |
| 9. |
Piston thickness depends on what criteria? |
| A. | Volume for combustion |
| B. | Gas pressure |
| C. | Aesthetic |
| D. | Products of combustion |
| Answer» B. Gas pressure | |
| 10. |
Which are the two types of piston head? |
| A. | Cup and flat type |
| B. | Cup and cone type |
| C. | Cone and bowl type |
| D. | Flat and bowl type |
| Answer» B. Cup and cone type | |