MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Mechatronics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which electrical relay contact tip material has the highest thermal conductivity? |
| A. | Silver |
| B. | Alloy of silver and copper |
| C. | Alloy of silver and tungsten |
| D. | Alloy of silver and Nickel |
| Answer» B. Alloy of silver and copper | |
| 2. |
Which type of relay contains a glass tube which contains an inert gas which is used to protect the contacts from corrosion? |
| A. | Polarised relay |
| B. | Solid-state relay |
| C. | Contactor |
| D. | Reed relay |
| Answer» E. | |
| 3. |
Electro mechanical relay’s (EMR) needs to be manually turned “ON” and “OFF”. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Relay and contactors perform different physical operation. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
A good electrical relay contact tip should have higher arc resistance. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which is an example of relay? |
| A. | KSD9700 |
| B. | XMPA06B2131 |
| C. | SLB700A/06VA |
| D. | 792XDXM4L-24A |
| Answer» E. | |
| 7. |
Who developed the first Solid state relay? |
| A. | Grueblerowen |
| B. | Walcraft engineers |
| C. | Crydom engineers |
| D. | Robert Conrad |
| Answer» D. Robert Conrad | |
| 8. |
Which type of solid state relay turns “ON” when a minimum operating control voltage is applied and the load voltage nearly reaches zero? |
| A. | Instant ON Relays |
| B. | Zero-Switching Relays |
| C. | Peak Switching Relays |
| D. | Analog Switching Relays |
| Answer» C. Peak Switching Relays | |
| 9. |
Which type of snubber network is required at the output terminal of the solid state relays to protect the semiconductor from transient spikes and unwanted noises? |
| A. | RC (Resistor capacitor) type |
| B. | RL (Resistor inductor) type |
| C. | RLC (Resistor inductor capacitor) type |
| D. | LC (Inductor capacitor) type |
| Answer» B. RL (Resistor inductor) type | |
| 10. |
Solid state relays have only one moving part which helps in switching between “ON” and “OFF” position. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Solid state relays face high arching problems. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Which type of relay can be used to automatically switch between transmitter and receiver configuration from a same antenna setup? |
| A. | Mercury relay |
| B. | Latching relay |
| C. | Force-guided contacts relay |
| D. | Coaxial relay |
| Answer» E. | |
| 13. |
Which electrical relay contact tip material has the highest electrical conductivity? |
| A. | Silver |
| B. | Alloy of silver and copper |
| C. | Alloy of silver and tungsten |
| D. | Alloy of silver and Nickel |
| Answer» B. Alloy of silver and copper | |
| 14. |
What is the full form of MCB? |
| A. | Miniature contact breaker |
| B. | Mini circuit breaker |
| C. | Miniature circuit breaker |
| D. | Mini contact breaker |
| Answer» D. Mini contact breaker | |
| 15. |
Who invented electrical relay? |
| A. | Grueblerowen |
| B. | Joseph Henry |
| C. | Philip Vaughan |
| D. | Robert Abalakov |
| Answer» C. Philip Vaughan | |