MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Thermal Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The connecting rod of a reciprocating steam engine is made by casting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
What is the function of a connecting rod in a reciprocating steam engine? |
| A. | It converts the circular motion of the crankshaft into the reciprocating motion of the piston rod |
| B. | It converts the reciprocating motion of the crankshaft into reciprocating motion of the piston rod |
| C. | It converts the reciprocating motion of the piston rod and cross-head into circular motion of the crankshaft |
| D. | It converts the circular motion of the piston rod and cross-head into circular motion of the crankshaft |
| Answer» D. It converts the circular motion of the piston rod and cross-head into circular motion of the crankshaft | |
| 3. |
Which of the following statements about cross-head of a reciprocating steam engine is FALSE? |
| A. | It connects the piston rod with the connecting rod |
| B. | Piston rod in some engines is joined to the cross-head by screwing |
| C. | In some engines cotter joint is used to join piston rod with the cross-heads |
| D. | Knuckle-joint is used to join cross-head and piston |
| Answer» E. | |
| 4. |
The end of the piston rod is joined to the connecting rod by _____ |
| A. | Cross-head |
| B. | D-slide valve |
| C. | Stuffing box |
| D. | Steam chest |
| Answer» B. D-slide valve | |
| 5. |
Cross-head of a reciprocating steam engine is usually made of wrought iron, cast steel or forged steel. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Stuffing box is made of _____ |
| A. | Chromium |
| B. | Aluminum |
| C. | Cast iron |
| D. | Cast steel |
| Answer» D. Cast steel | |
| 7. |
Which of the following statements about the piston rings is FALSE? |
| A. | Piston rings prevent leakage of steam |
| B. | Piston rings reduce the friction between the piston and wall |
| C. | Piston rings are generally made of cast iron |
| D. | Piston rings are fixed to the engine cylinder |
| Answer» E. | |
| 8. |
What is the function of a piston in a reciprocating steam engine? |
| A. | It converts the pressure energy of the steam to its reciprocating movement |
| B. | It converts its reciprocating energy to pressure energy of the steam |
| C. | It acts a reservoir to store steam |
| D. | It reheats the steam before entering into the steam chest |
| Answer» B. It converts its reciprocating energy to pressure energy of the steam | |
| 9. |
7.Steam is admitted into the engine cylinder from a reservoir of steam called as _____ |
| A. | Stuffing box |
| B. | Steam chest |
| C. | Eccentric |
| D. | Cross-head |
| Answer» C. Eccentric | |
| 10. |
The name of the non-conducting material covering the engine cylinder, of a reciprocating steam engine, to reduce condensation of the steam is called _____ |
| A. | graphite |
| B. | ceramide |
| C. | leading |
| D. | lagging |
| Answer» E. | |
| 11. |
Which of the following statement about stuffing box (in a reciprocating steam engine) is TRUE? |
| A. | Stuffing box is the casing which engine assembly is placed |
| B. | Stuffing box guides the crank shaft |
| C. | Stuffing box provides a steam-tight hole for the piston rod to pass through, to prevent steam leakage |
| D. | Stuffing box serves no purpose during engine operation |
| Answer» D. Stuffing box serves no purpose during engine operation | |
| 12. |
In an engine cylinder (of a reciprocating steam engine), the end of cylinder through which the piston rod passes is known as _____ |
| A. | crank end |
| B. | front end |
| C. | top end |
| D. | cover end |
| Answer» B. front end | |
| 13. |
Which of the following statement about steam ports (of reciprocating steam engines) is FALSE? |
| A. | They connect the engine cylinder with the steam chest |
| B. | The steam ports should have large cross-section |
| C. | Steam reaches the engine cylinder after passing through the steam ports |
| D. | The purpose of steam ports is to throttle the steam as it passes through |
| Answer» E. | |
| 14. |
The engine cylinder of a reciprocating steam engine is produced using casting operation. The casting of the cylinder consists of two chamber, namely _____ |
| A. | Steam chamber and condensing chamber |
| B. | Cylinder chamber and valve chamber |
| C. | Top chamber and bottom chamber |
| D. | back chamber and front chamber |
| Answer» C. Top chamber and bottom chamber | |
| 15. |
The engine cylinder of a reciprocating steam engine is made of _____ |
| A. | Cast-iron |
| B. | Chromium |
| C. | Aluminum |
| D. | Speed steel |
| Answer» B. Chromium | |