# Steam Engines MCQ

## 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

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

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

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

Q.7. In a steam engine, the piston has….. motion.

• Rotating
• Reciprocating
• Oscillating
• None of above

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

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

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

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

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

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

Q.16. In tandem type compound steam engines the cranks are placed

• 0° apart
• 45° apart
• 90° apart
• 180° apart
• 270° 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

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