MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Electrician And Wireman knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Fuse wire used in electric instruments are made up of: |
| A. | Pure zinc |
| B. | Pure lead |
| C. | Alloy of lead and tin |
| D. | Alloy of lead and zinc |
| Answer» D. Alloy of lead and zinc | |
| 2. |
Before commissioning or installing a water heater, the insulation resistance should not be less than _____. |
| A. | 2 mΩ |
| B. | .25 MΩ |
| C. | 1 MΩ |
| D. | .5 MΩ |
| Answer» D. .5 MΩ | |
| 3. |
How much power does an ordinary mixer draw? |
| A. | 5000 watts |
| B. | 400 watts |
| C. | 2000 watts |
| D. | 100 watts |
| Answer» C. 2000 watts | |
| 4. |
How is heat distributed to the base plate of electric iron? |
| A. | Through radiation |
| B. | Through convection |
| C. | Through conduction |
| D. | Through circulation |
| Answer» D. Through circulation | |
| 5. |
In India, household appliances generally operate on: |
| A. | 50 V |
| B. | 110 V |
| C. | 230 V |
| D. | 120 V |
| Answer» D. 120 V | |
| 6. |
One of the reason for the low speed of a ceiling fan can be due to: |
| A. | Blade corrosion |
| B. | Broken canopy |
| C. | Faulty mounting |
| D. | Faulty capacitor |
| Answer» E. | |
| 7. |
Principle of hysteresis is not used in |
| A. | Electrical water geyser |
| B. | Electrical motor |
| C. | Multi-vibrators |
| D. | Schmitt trigger |
| Answer» B. Electrical motor | |
| 8. |
In an electric iron, the transfer of heat from coil to base plate is mainly through: |
| A. | Capacitance |
| B. | Radiation |
| C. | Conduction |
| D. | Convection |
| Answer» D. Convection | |
| 9. |
Colour TV has approximate power of |
| A. | 100 |
| B. | 110 |
| C. | 120 |
| D. | 130 |
| Answer» E. | |
| 10. |
Domestic appliances are connected in parallel across AC mains because |
| A. | it is simple arrangement |
| B. | operation of each appliance becomes independent of each other |
| C. | appliances have same current ratings |
| D. | none of this |
| Answer» C. appliances have same current ratings | |
| 11. |
Choose the type of cable used for domestic appliances from the given options. |
| A. | Armored Cable |
| B. | Submersible Flat Cable |
| C. | Round Flexible Cable |
| D. | Shielded Cable |
| Answer» D. Shielded Cable | |