Question is ⇒ A circular sphere mile is the area of cross-section of a wire, Options are ⇒ (A) having a diameter equal to 1 miles, (B) having a radius equal to 1 miles, (C) having a circumference equal to 1 miles, (D) none of the above, (E) , Leave your comments or Download question paper.

Question is ⇒ A circular sphere mile is the area of cross-section of a wire, Options are ⇒ (A) having a diameter equal to 1 miles, (B) having a radius equal to 1 miles, (C) having a circumference equal to 1 miles, (D) none of the above, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A circular sphere mile is the area of cross-section of a wire
A.	having a diameter equal to 1 miles [Correct Answer]
B.	having a radius equal to 1 miles [Wrong Answer]
C.	having a circumference equal to 1 miles [Wrong Answer]
D.	none of the above [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒

Match the following:

	List I (Double Rectifier)		List II (Number of Diodes)
A.	Full wave Bridge rectifier	1.	1
B.	Half wave rectifier	2.	2
C.	Full wave rectifier using centre tapped transformer	3.	4

A-1, B-2, C-3
A-3, B-1, C-2
A-2, B-1, C-3
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⇒ Which of the following theorems enables a number of voltage (or current) sources to be combined directly into a single voltage (or current) source?
Superposition theorem
Compensation theorem
Millman's theorem
Thevenin's theorem

⇒ What is the propagation constant for air filled wave guide with dimensions a = 1.59" and b = 0.795" at 4.95 GHz. The wave impedance is
400.94 Ω
562.94 Ω
502.80 Ω
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⇒

Assertion (A): The velocity factor of a line is the ratio of wave velocity on the line to speed of light.

Reason (R): If the conductors of a line are immersed in a non magnetic insulating liquid, the wave velocity increases.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ In a bridge inverter with single pulse width modulation
the output frequency is equal to frequency of reference signal
the output frequency is equal to frequency of control signal
either (a) or (b)
neither (a) nor (b)

⇒ A linear system is characterized by H(ω) = Be^-2ω² the system is physically
unrealizable
realizable
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depends upon constant 2

⇒ A variable reluctance type tachometer has 150 teeth on rotor. The counter records 13500 pulse/sec. The rotational speed is
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5400 RPM
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7200 RPM

⇒ The addressing mode depicted in the given figur
direct
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register indirect
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auxiliary commutation
complementary commutation
any of the above

⇒ The changes in ambient temperature affect the open loop gain of amplifier.
TRUE
FALSE

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2.5 A
0.416666666666667
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⇒ What will be minimum conversion rate in 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).
9000
9259
1000
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⇒ For any given two port network, any parameter set can be determined from measurements made at the two ports.
TRUE
FALSE

⇒ A full adder is to be implemented using half adders and OR gates. A 4 bit parallel adder without any initial carry requires
8 half adders and 4 OR gates
8 half adders and 3 OR gates
7 half adders and 3 OR gates
7 half adders and 4 OR gates

⇒ Which of the following noise becomes of great importance at high frequencies?
Shot noise
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⇒ The reverse saturation current depends on the reverse bias.
TRUE
FALSE

⇒ In a R-L-C circuit at resonance is
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maximum in parallel resonance and minimum in series resonance
minimum in both series and parallel resonances
maximum in both series and parallel resonances.

⇒ Generally the wall thickness of rectangular waveguide is
about 1-5 mils
about 40-100 mils
about 0.1 to 0.5 mils
about 500 mils

⇒ A feedback network to be used with an amplifier to provide oscillation is tested and found to give an output of 0.124 V with a 0.5 V input. What percentage negative feedback should be introduced to the amplifier so that linear oscillations result?
0.0125
0.025
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⇒ In an FM signal, the power
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reduces as the modulation index increase
increases as the modulation index decreases
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⇒ In FM, the frequency deviation is
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directly proportional to modulating frequency
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⇒ Consider a control system shown in given figure. For slight variation in G, the ratio of open loop sensitivity to closed loop sensitivity will be give
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⇒ Divergence of curl A is
∇ . (∇ x A) = 1
∇ . (∇ x A) = 0
∇ . (∇ x A) = ∇
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⇒ What will be conversion time of a successive approximation A/D converter which uses 2 MHz clock and 5 bit binary ladder containing 8 V reference.?
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3 μ sec
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f_T = 1.64 x 10⁸ Hz ; g_m = 30 milli mho
f_T = 1.47 x 10⁹ Hz ; g_m = 38 mho
f_T = 1.33 x 10¹² Hz; g_m = 0.37 m-mho

⇒ Let f₁(t) = G₁(t) + 4, f₂(t) = G₂(t) + 3. If G₁(t) and G₂(t) are uncorrected then the correlation between f₁(t) and f₂(t) are
12
7
6
zero