Steam Engines MCQ
Steam Engines MCQ, Multiple Choice Questions on Steam Engines, Engineering MCQ, Basic Mechanical Engineering MCQ, MCQ on Steam Engines, MCQ on Reciprocating Machines
Objective Type Questions
Q.1. A steam engine works on
- Carnet cycle
- Rankine cycle
- Modified Rankine cycle
- Regenerative cycle
Answer: Rankine cycle
Q.2. For a steam engine diagram factor is defined as
- Area of hypothetical indicator diagram x area of actual indicator diagram
- Area of actual indicator diagram/Area of theoretical indicator diagram
- Area of indicator diagram/Area of actual indicator diagram
- None of above
Answer: Area of actual indicator diagram/Area of the theoretical indicator diagram
Q.3. The function of a D-slide valve in a steam engine is
- only to exhaust steam from cylinder
- only to admit steam from cylinder
- to admit and also exhaust steam from cylinder
- None of above
Answer: to admit and also exhaust steam from the cylinder
Q.4. In a steam engine
- piston rod is connected to cross head by gudgeon pin
- Connecting rod is connected to crankshaft by gudgeon pin
- Connecting rod is connected to piston by gudgeon pin
- Connecting rod is connected to cross head by gudgeon pin
Answer: Connecting rod is connected to the piston by a gudgeon pin
Q.5. In a steam engine, the cut-off ratio is the ratio of volume at cut-off to the…
- Swept Volume
- Cylinder Volume
- Clearance Volume
- All of above
Answer: Swept Volume
Q.6. In a steam engine the clearance ratio is the ratio of clearance volume to
- Swept Volume
- Cut-off Volume
- Cylinder Volume
- None of above
Answer: Swept Volume
Q.7. In a steam engine, the piston has….. motion.
- Rotating
- Reciprocating
- Oscillating
- None of above
Answer: Reciprocating
Q.8. In cut-off governing in steam engine…… is varied
- Super heat of steam
- Volume of intake steam
- Pressure of intake steam
- Dryness fraction
Answer: Dryness fraction
Q.9. William’s line for the steam engine is the straight-line relationship between the mass rate of steam flow and
- IHP
- BHP
- Efficiency
- Compression ratio
- Inlet pressure of steam
Answer: IHP
Q.10. A compound steam engine is one in which
- Steam expands twice
- Two engines are combined together
- Major parts are repeated twice
- Two units are put together
- Steam expands in several stages
Answer: Steam expands twice
Q.11. In the tandem compound steam engine, the axes of the two cylinders
- are 90° to each other
- are inclined at 45°
- are in the same straight line
- lie in different planes
- none of the above
Answer: are in the same straight line
Q.12. In receiver type of compounding, the cranks are placed
- 45° apart
- 90° apart
- are set at 90°
- 270° apart
- 360° apart
Answer: 90° apart
Q.13. In a tandem compound engine, the high pressure and low-pressure cylinders
- have a common piston rod
- have separate piston rods
- are set at 90°
- are set in V-arrangement
- have no piston rod
Answer: have a common piston rod
Q.14. In Woolfe type as well as receiver type compound engines, the high pressure, and low pressure cylinders
- have common piston rod
- have separate piston rods
- are set at 90°
- are set in V-arrangement
- have no piston rod
Answer: have separate piston rods
Q.15. The cranks of high pressure and low-pressure cylinders in a Woolfe type compound steam engine are placed
- 0° apart
- 45° apart
- 90° apart
- 180° apart
- 270° apart
Answer: 180° apart
Q.16. In tandem type compound steam engines the cranks are placed
- 0° apart
- 45° apart
- 90° apart
- 180° apart
- 270° apart
Answer: 90° apart
Q.17. The function of the piston is to
- transfer motion from piston to crosshead
- transfer motion from piston to connecting rod
- provide reciprocating motion to slide valves
- to control cut-off point
Answer: transfer motion from piston to the crosshead
Q.18. The function of an eccentric rod in steam engine is to:
- convert rotary motion of crankshaft into to and fro motion of the valve rod
- provide SHM to D-slide valve
- impart sliding motion to slide valve
- convert reciprocating motion to rotary motion
- adjust and control cut-off point
Answer: convert rotary motion of crankshaft into to and fro motion of the valve rod
Q.19. The function of a valve rod in steam engines is to
- convert rotary motion of crankshaft into to and fro motion of the valve rod
- provide SHM to D-slide valve
- impart sliding motion to slide valve
- convert reciprocating motion to rotary motion
- adjust and control cut-off point
Answer: provide SHM to D-slide valve
Q.20. The main function of a stuffing box in a steam engine is to:
- guide the piston rod
- receive steam from engine
- operate valve in proper sequence
- prevent leakage
- minimise the missing quantity
Answer: minimise the missing quantity