MCQOPTIONS
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MCQOPTIONS
This section includes 60 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The number 14.8 can also be expressed as |
| A. | 1.48 × 10–1 |
| B. | 1.48 √ó 100 |
| C. | 1.48 √ó 101 |
| D. | 1.48 √ó 102 |
| Answer» D. 1.48 √ó 102 | |
| 52. |
The number 560,000 is expressed in scientific notation. |
| A. | 1 |
| B. | |
| C. | 1 |
| D. | |
| Answer» C. 1 | |
| 53. |
Which of the following metric prefixes could replace 10–9? |
| A. | Nano |
| B. | Mega |
| C. | Kilo |
| D. | Micro |
| Answer» B. Mega | |
| 54. |
A measure of the repeatability of a measurement of some quantity is |
| A. | error |
| B. | precision |
| C. | accuracy |
| D. | significant |
| Answer» C. accuracy | |
| 55. |
Scientific notation is a method |
| A. | of expressing a very large number |
| B. | of expressing a very small number |
| C. | used to make calculations with large and small numbers |
| D. | All of the above |
| Answer» E. | |
| 56. |
If you drop a 5 when rounding a number, you are using the |
| A. | round-to-even rule |
| B. | significant digit rule |
| C. | round-off rule |
| D. | retained digit rule |
| Answer» B. significant digit rule | |
| 57. |
7450 × 10–5 amperes equals 74.5 ___. |
| A. | A |
| B. | mA |
| C. | A |
| D. | nA |
| Answer» C. A | |
| 58. |
Dividing 24 √ó 1011 by 3 √ó 104 equals |
| A. | 8 √ó 104 |
| B. | 8 √ó 107 |
| C. | 8 √ó 1011 |
| D. | 8 √ó 1015 |
| Answer» C. 8 √ó 1011 | |
| 59. |
7200 mV is the same as |
| A. | 7.2 V |
| B. | 7.2 V |
| C. | 7,200,000 V |
| D. | 0.0072 V |
| Answer» C. 7,200,000 V | |
| 60. |
Derived units are obtained from various combinations of |
| A. | electrical quantities |
| B. | fundamental units |
| C. | metric prefixes |
| D. | international standards |
| Answer» C. metric prefixes | |