MCQOPTIONS
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MCQOPTIONS
This section includes 29 Mcqs, each offering curated multiple-choice questions to sharpen your Alternating Current and Voltage knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Select a figure from amongst the Answer Figures which will continue the same series as established by the five Problem Figures.Problem Figures: Answer Figures: (A) (B) (C) (D) (E) (1) (2) (3) (4) (5) |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| E. | 5 |
| Answer» C. 3 | |
| 2. |
Which of the following is not a series? |
| A. | Arithmetic series |
| B. | Geometric series |
| C. | Isometric series |
| D. | Harmonic series |
| Answer» D. Harmonic series | |
| 3. |
\(\sum_{i=1}^4\) 2n+3 = _____________________ |
| A. | 5 |
| B. | 12 |
| C. | 21 |
| D. | 32 |
| Answer» E. | |
| 4. |
Find the sum of first 5 terms of series 2+4+6+……………… |
| A. | 14 |
| B. | 16 |
| C. | 20 |
| D. | 30 |
| Answer» E. | |
| 5. |
Find sum of series 2+3+5+7. |
| A. | 5 |
| B. | 10 |
| C. | 17 |
| D. | infinite |
| Answer» D. infinite | |
| 6. |
1+2+3+4 or 10 is a series? |
| A. | 1+2+3+4 only |
| B. | 10 only |
| C. | 1+2+3+4 and 10 |
| D. | neither 1+2+3+4 nor 10 |
| Answer» B. 10 only | |
| 7. |
A series can also be denoted by symbol ____________ |
| A. | π an |
| B. | ∑an |
| C. | Φ an |
| D. | θ an |
| Answer» C. Φ an | |
| 8. |
The sequence is same as series. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
With 6 V applied, what is the voltage across R 2 of a parallel combination of R 2 (1 k ), R 3 (2 k ), and R 4 (1 k ) in series with R 1 , whose value is 2 k ? |
| A. | 1 V |
| B. | 3 V |
| C. | 5 V |
| D. | 6 V |
| Answer» B. 3 V | |
| 10. |
In a series–parallel circuit consisting of R 1 and R 2 in series and connected in parallel with R 3 , if R 1 opens, then R 2 's voltage will: |
| A. | increase |
| B. | decrease |
| C. | remain the same |
| D. | cannot tell |
| Answer» C. remain the same | |
| 11. |
If R 1 is in series with a parallel combination of R 2 , R 3 , and R 4 , when the resistance value of R 2 increases, the voltage across R 3 will |
| A. | increase |
| B. | decrease |
| C. | remain the same |
| D. | Cannot tell |
| Answer» B. decrease | |
| 12. |
Components or combinations of components with common currents, in a series–parallel circuit, are in: |
| A. | parallel with each other |
| B. | series with each other |
| C. | either series or parallel with each other |
| D. | none of the above |
| Answer» D. none of the above | |
| 13. |
What determines if resistor connections are in series, parallel, or series–parallel? |
| A. | the voltage source |
| B. | the power source |
| C. | resistance |
| D. | current flow |
| Answer» E. | |
| 14. |
If a series–parallel circuit has all 30-ohm resistors, what is the total resistance when R 1 is in series with a parallel circuit consisting of R 2 and R 3 ? |
| A. | 10 ohms |
| B. | 20 ohms |
| C. | 45 ohms |
| D. | 90 ohms |
| Answer» D. 90 ohms | |
| 15. |
The first goal(s) to accomplish in analyzing a complex series–parallel circuit is to: |
| A. | equate all parallel components |
| B. | equate all series components |
| C. | solve for all the voltage drops |
| D. | solve for the total current and resistance |
| Answer» E. | |
| 16. |
What is the total resistance of a circuit when R 1 (7 k ) is in series with a parallel combination of R 2 (20 k ), R 3 (36 k ), and R 4 (45 k )? |
| A. | 4 k |
| B. | 17 k |
| C. | 41 k |
| D. | 108 k |
| Answer» C. 41 k | |
| 17. |
If R 1 is in series with parallel connected to R 2 and R 3 , what happens to total current if R 2 opens? |
| A. | increases |
| B. | decreases |
| C. | remains the same |
| D. | cannot tell |
| Answer» C. remains the same | |
| 18. |
With 21 V applied, if R 1 = 5 ohms, R 2 = 35 ohms, and R 3 = 14 ohms, what is the current of R 2 if R 1 is series connected with parallel circuit R 2 and R 3 ? |
| A. | 200 mA |
| B. | 800 mA |
| C. | 600 mA |
| D. | 400 mA |
| Answer» E. | |
| 19. |
In a series–parallel circuit, individual component power dissipations are calculated using: |
| A. | individual component parameters |
| B. | a percent of the voltage division ratio squared |
| C. | total current squared multiplied by the resistor values |
| D. | a percent of the total power depending on resistor ratios |
| Answer» B. a percent of the voltage division ratio squared | |
| 20. |
The parallel combination of a 470 resistor and a 1.2 k resistor is in series with the parallel combination of three 3 k resistors. A 200 V source is connected across the circuit. The resistor with the most current has a value of |
| A. | 470 or 1.2 k |
| B. | 3 k |
| C. | 470 |
| D. | 1.2 k |
| Answer» D. 1.2 k | |
| 21. |
In a certain five-step R /2 R ladder network, the smallest resistor value is 1 k . The largest value is |
| A. | indeterminable |
| B. | 2 k |
| C. | 10 k |
| D. | 20 k |
| Answer» C. 10 k | |
| 22. |
A balanced Wheatstone bridge consists of an R V of 3,500 , an R 2 of 200 , and an R 3 of 680 . The value of R UNK is |
| A. | 680 |
| B. | 1,029 |
| C. | 200 |
| D. | 880 |
| Answer» C. 200 | |
| 23. |
A 6 V battery output is divided down to obtain two output voltages. Three 2.2 k resistors are used to provide the two taps. The two output voltages are |
| A. | 2 V, 4 V |
| B. | 2 V, 2 V |
| C. | 2 V, 6 V |
| D. | 4 V, 6 V |
| Answer» B. 2 V, 2 V | |
| 24. |
The parallel combination of a 470 resistor and a 680 resistor is in series with the parallel combination of four 2 k resistors. The total resistance is |
| A. | 1,650 |
| B. | 1,078 |
| C. | 77.8 |
| D. | 778 |
| Answer» E. | |
| 25. |
A certain circuit is composed of two parallel resistors. The total resistance is 1,403 . One of the resistors is 2 k . The other resistor value is |
| A. | 1,403 |
| B. | 4.7 k |
| C. | 2 k |
| D. | 3,403 |
| Answer» C. 2 k | |
| 26. |
The parallel combination of a 6.8 k resistor and a 10 k resistor is in series with the parallel combination of a 2.2 k resistor and a 1 k resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are) |
| A. | 6.8 k |
| B. | 2.2 k |
| C. | 6.8 k and 10 k |
| D. | 2.2 k and 1 k |
| Answer» D. 2.2 k and 1 k | |
| 27. |
On which of the following voltage range settings will a voltmeter present the minimum load on a circuit? |
| A. | 1 V |
| B. | 50 V |
| C. | 500 V |
| D. | 1,000 V |
| Answer» E. | |
| 28. |
A certain Wheatstone bridge has the following resistor values: R 1 = 10 k , R 2 = 720 , and R 4 = 2.4 k . The unknown resistance is |
| A. | 24 |
| B. | 2.4 |
| C. | 300 |
| D. | 3,000 |
| Answer» E. | |
| 29. |
The parallel combination of a 470 resistor and a 1.5 k resistor is in series with the parallel combination of five 1 k resistors. The source voltage is 50 V. The percentage of the load current through any single 1 k resistor is |
| A. | 25% |
| B. | 20% |
| C. | 100% |
| D. | 50% |
| Answer» C. 100% | |