MCQOPTIONS
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MCQOPTIONS
This section includes 236 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Find the value of the currents I1 and I2 flowing clockwise in the first and second mesh respectively. |
| A. | 0.96A, 1.73A |
| B. | 0.96A, -1.73A |
| C. | -0.96A, 1.73A |
| D. | -0.96A, -1.73A |
| Answer» C. -0.96A, 1.73A | |
| 202. |
Mesh analysis is generally used to determine_________ |
| A. | Voltage |
| B. | Current |
| C. | Resistance |
| D. | Power |
| Answer» C. Resistance | |
| 203. |
Calculate the value of RL across A and B. |
| A. | 3.45ohm |
| B. | 2.91ohm |
| C. | 6.34ohm |
| D. | 1.54ohm |
| Answer» C. 6.34ohm | |
| 204. |
Find the value of the currents I1, I2 and I3 flowing clockwise in the first, second and third mesh respectively. |
| A. | 1.54A, -0.189A, -1.195A |
| B. | 2.34A, -3.53A, -2.23A |
| C. | 4.33A, 0.55A, 6.02A |
| D. | -1.18A, -1.17A, -1.16A |
| Answer» B. 2.34A, -3.53A, -2.23A | |
| 205. |
Does maximum power transfer imply maximum efficiency? |
| A. | Yes |
| B. | No |
| C. | Sometimes |
| D. | Cannot be determined |
| Answer» C. Sometimes | |
| 206. |
Find the current in the 4 ohm resistor. |
| A. | 5A |
| B. | 0A |
| C. | 2.2A |
| D. | 20A |
| Answer» C. 2.2A | |
| 207. |
What is the current in the following circuit? |
| A. | 0A |
| B. | 15A |
| C. | 5A |
| D. | 10A |
| Answer» B. 15A | |
| 208. |
Find the value of I1, I2 and I3. |
| A. | -0.566A, 1.29A, -1.91A |
| B. | -1.29A, -0.566A, 1.91A |
| C. | 1.29A, -0.566A, -1.91A |
| D. | 1.91A, 0.566A, 1.29A |
| Answer» D. 1.91A, 0.566A, 1.29A | |
| 209. |
Find the value of V, if the value of I3= 0A. |
| A. | 1.739 V |
| B. | 6.5 V |
| C. | 4.5V |
| D. | 2.739V |
| Answer» B. 6.5 V | |
| 210. |
Find the value of R if the power in the circuit is 1000W. |
| A. | 10 ohm |
| B. | 9 ohm |
| C. | 8 ohm |
| D. | 7 ohm |
| Answer» D. 7 ohm | |
| 211. |
KVL is associated with____________ |
| A. | Mesh analysis |
| B. | Nodal analysis |
| C. | Both mesh and nodal |
| D. | Neither mesh nor nodal |
| Answer» B. Nodal analysis | |
| 212. |
Mesh analysis employs the method of ___________ |
| A. | KVL |
| B. | KCL |
| C. | Both KVL and KCL |
| D. | Neither KVL nor KCL |
| Answer» B. KCL | |
| 213. |
In superposition theorem, when we consider the effect of one voltage source, all the other current sources are ____________ |
| A. | Shorted |
| B. | Opened |
| C. | Removed |
| D. | Undisturbed |
| Answer» C. Removed | |
| 214. |
In superposition theorem, when we consider the effect of one current source, all the other voltage sources are ____________ |
| A. | Shorted |
| B. | Opened |
| C. | Removed |
| D. | Undisturbed |
| Answer» B. Opened | |
| 215. |
Nodal analysis can be applied for________ |
| A. | Planar networks |
| B. | Non-planar networks |
| C. | Both planar and non-planar networks |
| D. | Neither planar nor non-planar networks |
| Answer» D. Neither planar nor non-planar networks | |
| 216. |
In superposition theorem, when we consider the effect of one current source, all the other current sources are ____________ |
| A. | Shorted |
| B. | Opened |
| C. | Removed |
| D. | Undisturbed |
| Answer» C. Removed | |
| 217. |
How many nodes are taken as reference nodes in a nodal analysis? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 218. |
In superposition theorem, when we consider the effect of one voltage source, all the other voltage sources are ____________ |
| A. | Shorted |
| B. | Opened |
| C. | Removed |
| D. | Undisturbed |
| Answer» B. Opened | |
| 219. |
KCL is associated with_________ |
| A. | Mesh analysis |
| B. | Nodal analysis |
| C. | Both mesh and nodal |
| D. | Neither mesh nor nodal |
| Answer» C. Both mesh and nodal | |
| 220. |
Mesh analysis can be used for __________ |
| A. | Planar circuits |
| B. | Non-planar circuits |
| C. | Both planar and non-planar circuits |
| D. | Neither planar nor non-planar circuits |
| Answer» B. Non-planar circuits | |
| 221. |
If a 6 ohm, 2ohm and 4ohm resistor is connected in delta, find the equivalent star connection. |
| A. | 1ohm, 2ohm, 3ohm |
| B. | 2ohm, 4ohm, 7ohm |
| C. | 5ohm, 4ohm, 2ohm |
| D. | 1ohm, 2ohm, 2/3ohm |
| Answer» E. | |
| 222. |
If a 4ohm, 3ohm and 2ohm resistor is connected in delta, find the equivalent star connection. |
| A. | 8/9ohm, 4/3ohm, 2/3ohm |
| B. | 8/9ohm, 4/3ohm, 7/3ohm |
| C. | 7/9ohm, 4/3ohm, 2/3ohm |
| D. | 8/9ohm, 5/3ohm, 2/3ohm |
| Answer» B. 8/9ohm, 4/3ohm, 7/3ohm | |
| 223. |
Superposition theorem is valid for _________ |
| A. | Linear systems |
| B. | Non-linear systems |
| C. | Both linear and non-linear systems |
| D. | Neither linear nor non-linear systems |
| Answer» B. Non-linear systems | |
| 224. |
A source transformation is_________ |
| A. | Unilateral |
| B. | Bilateral |
| C. | Unique |
| D. | Cannot be determined |
| Answer» C. Unique | |
| 225. |
In source transformation________ |
| A. | Voltage source remains the same |
| B. | Current sources remain the same |
| C. | Both voltage and current source remain the same |
| D. | Resistances remain the same |
| Answer» E. | |
| 226. |
If there are 3 10V sources connected in parallel then on source transformation__________ |
| A. | The effect of all the sources is considered |
| B. | The effect of only one source is considered |
| C. | The effect of none of the sources is considered |
| D. | The effect of only 2 sources is considered. |
| Answer» C. The effect of none of the sources is considered | |
| 227. |
Superposition theorem does not work for ________ |
| A. | Current |
| B. | Voltage |
| C. | Power |
| D. | Works for all: current, voltage and power |
| Answer» D. Works for all: current, voltage and power | |
| 228. |
In an AC circuit, resistance 50 O, inductance 0.3 H and capacitance 15 µF is connected to an AC voltage source 25 V, 50 Hz. Determine the phase difference between current and voltage. |
| A. | 670 |
| B. | 540 |
| C. | 470 |
| D. | 770 |
| Answer» B. 540 | |
| 229. |
Name some devices where maximum power has to be transferred to the load rather than maximum efficiency. |
| A. | Amplifiers |
| B. | Communication circuits |
| C. | Both amplifiers and communication circuits |
| D. | Neither amplifiers nor communication circuits |
| Answer» D. Neither amplifiers nor communication circuits | |
| 230. |
In an AC circuit, resistance 50 O, inductance 0.3 H and capacitance 15 µF is connected to an AC voltage source 25 V, 50 Hz. Determine the capacitive reactance in the circuit. |
| A. | 316 ohm |
| B. | 195 ohm |
| C. | 124 ohm |
| D. | 212 ohm |
| Answer» E. | |
| 231. |
In an AC circuit, resistance 50 O, inductance 0.3 H and capacitance 15 µF is connected to an AC voltage source 25 V, 50 Hz. Determine the impedance in the circuit. |
| A. | 110 ohm |
| B. | 100 ohm |
| C. | 125 ohm |
| D. | 140 ohm |
| Answer» D. 140 ohm | |
| 232. |
What value of direct current must flow through a resistor to produce the same heating power as an alternating current with a peak value of 3.5 A? |
| A. | 1.5 A |
| B. | 2.5 A |
| C. | 3.5 A |
| D. | 4.5 A |
| Answer» C. 3.5 A | |
| 233. |
In an AC circuit, resistance 50 O, inductance 0.3 H and capacitance 15 µF is connected to an AC voltage source 25 V, 50 Hz. Determine the inductive reactance in the circuit. |
| A. | 36 ohm |
| B. | 95 ohm |
| C. | 125 ohm |
| D. | 140 ohm |
| Answer» C. 125 ohm | |
| 234. |
In an AC circuit, resistance 50 O, inductance 0.3 H and capacitance 15 µF is connected to an AC voltage source 25 V, 50 Hz. Determine the current in the circuit. |
| A. | 0.01 A |
| B. | 0.2 A |
| C. | 0.02 A |
| D. | 0.002 A |
| Answer» C. 0.02 A | |
| 235. |
If ZL=Zs', then RL=? |
| A. | -RL |
| B. | Rs |
| C. | -Rs |
| D. | 0 |
| Answer» C. -Rs | |
| 236. |
Under the condition of maximum power efficiency is? |
| A. | 1 |
| B. | 0 |
| C. | 0.3 |
| D. | 0.5 |
| Answer» E. | |