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ESE Technical Revision Quiz 12

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Question 1

Match List-I (Theorem/Law) with List-II (Property) and select the correct answer using the code given below the lists :
List-I
A. Norton's theorem
B. Superposition theorem
C. Thevenin's theorem
D. Kirchhoff's current law
List-II
1. Effects of independent source in a linear circuit are additive
2. Law of non-accumulation of charge holds good at nodes
3. Current sources with shunt resistor
4. Voltage source with series resistor
Codes :

Question 2

Consider the following statements:
For a square waveguide of cross-section 3cm × 3 cm it has been found.
1). At 6 GHz dominant mode will propagate.
2). At 4 GHz all the modes are evanescent.
3). At 11 GHz only dominant modes and no higher order mode will propagate.
4). At 7 GHz degenerate modes will propagate.
Which of the above statements are correct?

Question 3

A 1 kΩ resistor with an accuracy of ± 10% carries a current of 10 mA. The current was measured by an analog ammeter on a 25 mA range with an accuracy of ± 2%. The accuracy in calculating the power dissipated in the resistor would be

Question 4

Statement (I):The MOSFET device is called as an insulated gate field-effect transistor (IGFET).
Statement (II): The gate of MOSFET is insulated from the body of FET by deposition of a very thin fragile layer of Si0₂ over the substrate.

Question 5

If an antenna has a main beam with both half-power beam widths equal to 20^o, its directivity (D) is nearly

Question 6

Consider the following statement:
1). When two unsigned numbers are added, an overflow is detected from the carry into the most significant position.
2). An overflow does not occur if the two numbers added are both negative.
3). If the carry into the sign bit position and carry out of the sign bit position are not equal, an overflow condition is produced.
Which of the above statement is/are correct?