The demand for electrical energy is increasing day by day. So a boom in the consumption of electrical energy has been seen in the last few decades. It is the very reason for the growth in the field of electrical engineering. Due to this growth, carriers in this field are increasing day by day. Almost […]
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1. A synchrotransmitter consists of a (a) salient pole rotor winding excited by an ac supply and a 3-phase balanced rotor winding. (b) three phase balanced stator winding excited by a three phase balanced ac signal and rotor connected to a dc voltage source. (c) salient pole, rotor winding excited by a dc signal. (d)
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1. A recorder (a) is an indicating instrument which displays a time varying signal. (b) is a device whose function is to record the value of quantity as it is being measured. (c) records electrical and non-electrical quantities as a function of time or relates two signals to each other. (d) both (b) and (c).
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1. A CRO screen has 10 divisions on the horizontal scale. If a voltage signal 5 sin (314 t + 45°) is examined with a line base setting of 5 ms/division, the number of cycles of signal displayed on the screen will be (a) 0.5 cycle (b) 2.5 cycles (c) 5 cycles. (d) 10 cycles.
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Wind Power vs Solar Power | Pros and Cons Many homes in various nations are turning to power their homes with renewable energies. When you decide to go for off-grid or grid-connected power systems, you have two primary options for renewable energy equipment. These options include wind turbines and solar cells. So, which one is
1. Which bridge is used to determine frequency? (a) Anderson bridge. (b) De Sauty bridge. (c) Wien bridge. (d) Campbell bridge. 2. Which one of the following is a frequency sensitive bridge? (a) De-Sauty bridge. (b) Schering bridge. (c) Wien’s bridge. (d) Maxwell’s bridge. 3. Which of the following bridges can be used to construct
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1. Which of the following indicating instrument, has/have linear scale ? Moving iron meter. PMMC meter. Thermocouple meter. Rectifier type meter. Select the correct answer using code given below : Code: (a) Only 1 and 2 (b) Only 2 and 3 (c) Only 3 and 4 (d) Only 2 2. Which of the following instruments
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1. Commonly used standard capacitor is (a) concentric sphere type. (b) parallel plate type. (c) concentric cylinder type with guard ring. (d) multiple parallel plate type. 2. Which one of the following meters is an integrating type instrument? (a) Ammeter. (b) Voltmeter. (c) Wattmeter. (d) Energy meter. 3. The …….. is an integrating type instrument:
1. Deflection methods of direct measurements are most widely used as these are (a) most simple. (b) most accurate. (c) least time consuming. (d) most simple and least time consuming. 2. Comparison methods are used (a) because these are most simple. (b) because these are inexpensive. (c) because these take least time in measurement. (d)
1. Main traction systems used in India are those using ……….. locomotives. (a) steam engine (b) diesel engine (c) diesel-electric (d) electric (e) all of the above 2. Diesel electric traction has comparatively limited overload capacity because (a) diesel engine is a constant output prime mover. (b) diesel engine has shorter life span. (c) regenerative