Users Also Read
Read MCQ's/Objective questions
MCQ's Search Engine
Analog Electronics
Automatic Control Systems
Communication Systems
Digital Electronics
Electromagnetic Field Theory
Electronic Devices and Circuits
Materials and Components
Measurements and Instrumentation
Microprocessors
Microwave Communication
Networks Analysis and Synthesis
Power Electronics
Radio Receivers
Satellite Communication
Signals and Systems
Matching Questions
Home⇒ Engineering⇒
Exam questions papers
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ The eigen values of a skew symmetric matrix are either zero or pure imaginary [other wrong options] [Discuss in forum] always zero always pure imaginary always real |
Q22 ⇒ The amplitude of a pair of composite sinusoidal signal y(n) = x1(n) + x2(n) with x1(n) = sin (5pn) x2(n) = 3 sin (5pn) is __________ . 2 [other wrong options] [Discuss in forum] 3 4 1 |
Q23 ⇒ The electric field of 2.5 x 107 V/m can give 1 eV energy to condition electron, then in a copper block what will be the mean free path of electron? 4 x 10-7 m [other wrong options] [Discuss in forum] 5 x 10-8 m 0.4 m 0.5 m |
Q24 ⇒ In amplitude modulation, carrier signals A cos ωt has its amplitude A modulated in proportion with message bearing (low frequency) signal m(t). The magnitude of m(t) is chosen to be __________ . less than or equal to 1 [other wrong options] [Discuss in forum] less than 1 more than 1 none of these |
Q25 ⇒ The current i(t), though a 10 Ω resistor in series with an inductance, is given by i(t) = 3 + 4 sin (10t + 45°) + 4 sin (300t + 60°) Amperes. The RMS value of the current and the power dissipated in the circuit are 41 A, 410 W, respectively [other wrong options] [Discuss in forum] 35 A, 350 W, respectively 5 A, 250 W, respectively 11 A, 1210 W, respectively |
Q26 ⇒ For the power amplifier circuit shown below, the maximum power dissipated by both output transisto 31.66 W [other wrong options] [Discuss in forum] 9.66 W 30.11 W 33.66 W |
Q27 ⇒ The magnitude plot of a composite signal x(t) = e2jt + e3jt is Full wave rectified sinusoid [other wrong options] [Discuss in forum] Half wave rectified sinusoid Exponentially increasing sinusoid Exponentially decreasing sinusoid |
Q28 ⇒ Rank of the matr 1 [other wrong options] [Discuss in forum] 3 2 4 |
Q29 ⇒ A MOD - 2 counter, the FF has a tpd = 60 nsec. The NOR gate has a tpd of 30 nsec. The clock frequency is 37 MHz [other wrong options] [Discuss in forum] 40 MHz 111 MHz none |
Q30 ⇒ Let f(A, B) = A ⊕ B; then the simplified form of the function f(f(x ⊕ y, z)w) is none of these [other wrong options] [Discuss in forum] (x ⊕ y ⊕ z)w x ⊕ y ⊕ z ⊕ w (x ⊕ y ⊕ z) + w |
Q31 ⇒ 8416 - 2A16 is equal to 5A16 [other wrong options] [Discuss in forum] 4A16 7A16 15A16 |
Q32 ⇒ The following circuit is implementation of
(i) and (ii) [other wrong options] [Discuss in forum] (i) only (iii) only (ii) only |
Q33 ⇒ A n-type silicon sample contains a donor concentration of Nd = 2 x 1016 cm-3. The minority carrier hole lifetime is tp0 = 5 μs. The thermal equilibrium generation rate of hole is: 2.25 x 109 cm-3 s-1 [other wrong options] [Discuss in forum] 1.125 x 109 cm-3 s-1 0.625 x 109 cm-3 s-1 4.5 x 109 cm-3 s-1 |
Q34 ⇒ A bipolar differential amplifier uses a transistor having β0 = 200, ICQ = 100 mA, |Adm| = 500 and CMRR = 80 dB. The value of Rc and RE will be respectively __________ . 1.25 kΩ, 1.25 MΩ [other wrong options] [Discuss in forum] 125 kΩ, 1.25 MΩ 1.25 MΩ, 1.25 kΩ 3.25 kΩ, 3.25 MΩ |
Q35 ⇒ Figure shows four D type FFs are connected as a shift register using an XOR gate. The initial state and 3 subsequent states for 3 clock pulses are also g 1000 [other wrong options] [Discuss in forum] 0 1111 1001 |
Q36 ⇒ Which of the following Boolean Expression correctly represents the relation between P, Q, R and M1
M1 = (P XOR Q) XOR R [other wrong options] [Discuss in forum] M1 = (P OR Q) XOR R M1 = (P AND Q) XOR R M1 = (P NOR Q) XOR R |
Q37 ⇒ A memoryless source emits n symbols each with a probability p. The entropy of the source as a function of n increases as n [other wrong options] [Discuss in forum] increases as log n decreases as log (1/n) increases as n log n |
Q38 ⇒ The number of product terms in the minimized sum of product expression obtained through the following k map is (where "d" denotes don't care states) 3 [other wrong options] [Discuss in forum] 2 4 5 |
Q39 ⇒ Which of the following is equivalent to x? x EX-NOR 0 [other wrong options] [Discuss in forum] x EX-OR 0 1 NOR x x AND x |
Q40 ⇒ For the collector-feedback amplifier shown below the voltage gain Av will be _________ -103.07 [other wrong options] [Discuss in forum] -113.07 -107.07 -93 |
Or |