A. increase linearly
B. decrease linearly
C. increase parabolically
D. decrease parabolically
E. first decrease linearly and then increase parabolically
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. 250°C
B. 500°C
C. 1000°C
D. 150CPC
E. 2000°C
A. fuelinjection starts at 10° before to dead center and ends at 20° after tor dead center
B. fuel injection starts at top dead center and ends at 20° after top dead center
C. fuel injection starts at just before top dead center and ends just after top deac center
D. may start and end anywhere
E. none of the above
A. air aione
B. air and fuel
C. air and lub oil
D. fuel alone
E. air, fuel and lub oil
A. Diesel cycle
B. Otto cycle
C. Dual combustion cycle
D. Special type of air cycle
E. Carnot cycle
A. peak pressure
B. rate of rise of pressure
C. rate of rise of temperature
D. peak temperature
E. rate of rise of horse-power
A. Otto cycle is more efficient than the Diesel
B. Diesel cycle is more efficient’than Otto
C. both Otto and Diesel cycles are, equally efficient
D. compression ratio has nothing to do with efficiency
E. which is more efficient would depend on engine capacity
A. increase
B. decrease
C. remain same
D. increase upto certain limit and then decrease
E. decrease upto certain limit and then in-crease
A. exhaust will be smoky
B. piston rings would stick into piston grooves
C. exhaust temperature will be high
D. engine starts overheating
E. scavenging occurs
A. 180°
B. 125°
C. 235°
D. 200°
E. 275°
