Consider the following statements about Infix and Post fix notations in Pascal
| |
A. | All [Correct Answer] |
B. | 1 and 2 only [Wrong Answer] |
C. | 1 and 3 only [Wrong Answer] |
D. | 2 and 3 only [Wrong Answer] |
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Explanation:-
Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
⇒ An ac circuit has an impedance of (3 + j6) ohm for fundamental. The impedance for fifth harmonic is
(15 + j 30) Ω
(15 + j 6) Ω
(3 + j 30) Ω
(3 + j 1.2) Ω
⇒ Ferrites have
a low copper loss
low eddy current loss
low resistivity
higher specific gravity compared to iron
⇒ If the potential functions V_{1} and V_{2} satisfy Laplace's equation within a closed region and assume the same values on its surface, then which of the following is correct?
V_{1} and V_{2} are identical
V_{1} is inversely proportional to V_{2}
V_{1} has the same direction as V_{2}
V_{1} has the same magnitude as V_{2} but has different direction
⇒ If J, I and a denote current density, current and area of cross section of a conductor, then
J = Ia
J = I/a^{2}
J = I/a
J = Ia^{2}
⇒ A machine cycle has one clock cycle.
TRUE
FALSE
⇒ In the circuit shown, the steady state is reached with S open S is closed at t = 0, the current I in the 1 Ω resistor connected is to be determined at t = 0^{+} is give
1
2
3
42828
⇒ A frequency doubler has an FM signal input at 13 MHz with a deviation of 5 kHz. The output frequency of the carrier will be
26 kHz
260 kHz
26 MHz
260 MHz
⇒ In a two stage cascade amplifier, each stage has a gain of 10 dB and noise figure of 10 dB. The overall noise factor is
10
1.09
1
10.9
⇒ In classical analogue, torque is analogous to
current
voltage
charge
voltage gradient
⇒ A negative-feedback closed-loop system is supplied to an input 5 V. The system has a forward gain of 1 and a feedback gain of 1 and a feedback gain of 1. What is the output voltage?
1.0 V
1.5 V
2.0 V
2.5 V
⇒ If f(t) is an even function, the coefficients F_{n} in the exponential form of Fourier series
are real
are imaginary
are complex
may be real or imaginary
⇒ ∈_{0} has no other physical meaning than that of a fundamental conversion factor.
TRUE
FALSE
⇒ The band gap of silicon at 300K is
1.36 eV
1.10 eV
0.80 eV
0.67 eV
⇒ Which are of the following oscillators is well suited for the generation of wide range audio-frequency sine waves?
RC phase-shift oscillator
Wien-bridge oscillator
Colpitts oscillator
Hartley oscillator
⇒ In terms of signum function sgn(t), unit step function u(t) =
1 + sgn(t)
1 - sgn(t)
0.5 + 0.5 sgn(t)
0.5 - 0.5 sgn(t)
⇒ If i_{b} is plate current, e_{b} is plate voltage and e_{c} is grid voltage the v-i curve of a vacuum triode
0.5 and 1
- 2 and 1
30 and 1
30 and 1.5
⇒
Assertion (A): The Fourier series of the wave shown in the figure does not contain even harmao
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 true, R is false
A is false, R is true
⇒ A few minutes disturbance in space communications occurs twice a year during Sunblinding when __________ are in line.
Sun and satellite
Sun and Earth station
Satellite and Earth station
Sun, satellite and Earth station
⇒ The storage battery used in power stations and substations is generally
nickel cadmium battery
lead acid battery
zinc carbon battery
zinc carbon or lead acid battery
⇒ In a modified series inverter
the maximum output frequency is less than frequency of damped oscillations
the output frequency can be even higher than the frequency of damped oscillations
the output frequency cannot exceed the frequency of damped oscillations
any of the above
⇒ The device having highest photo sensitivity is
photoconductive cell
photovoltaic cell
photodiode
phototransistor
⇒ The number of variables in a function is odd and the number of minterms with even number of 0's are same as the number of minterms with odd number at 1 's, the expression formed can be represented in __________ as well as __________ form.
exclusive - OR, NOR
equivalence, exclusive - OR
AND, coincidence
OR, exclusive - OR
⇒ An input voltage V(t) = 10 2 cos (t + 10°) + 10 3 cos (2t + 10°)V is applied to a series combination of resistance R = 1 kΩ inductance L = 1H. The resulting steady-state current i(t) in ampere is
10 cos (t + 55°) + 10 cos (2t + 10° tan^{-1}2)
10 cos (t + 55°) + 103/2 cos (2t + 55°)
10 cos (t - 35) + 10 cos (2t + 10° - tan^{-1}2)
10 cos (t - 35) + 103/2 cos (2t + 35°)
⇒ In figure readings of the two voltmeters shoul
100 V on each meter
200 V on each meter
150 V on V_{1} and 50 V on V_{2}
50 V on V_{1} and 150 V on V_{2}
⇒ Which of following digital modulation technique?
ASK
FSK
PSK
All
⇒ In an unloaded transformer, the fluxes limiting the primary and secondary are 30 mWb and 20 mWb. The coefficient of coupling is
1
0.1
0.33
0.67
⇒ The attenuation in waveguides near the cut off frequency is
very low
very high
medium
zero
⇒ In a CE amplifier, the collector resistance is 6 kΩ and load resistance is 3 kΩ. The ac load resistance is
9 kΩ
6 kΩ
3 kΩ
2 kΩ
⇒ If temperature is increased, the temperature coefficient of a metal
increases
decreases
may increase or decrease
remains constant
⇒
List I (Microwave device) | List II (Application) | ||
---|---|---|---|
A. | PIN diode | 1. | Microwave amplification |
B. | GaAs MOSFET | 2. | Low noise microwave generation |
C. | Transferred electron device | 3. | Electronic tuning of MW oscillator |
D. | Varactor diode | 4. | Light wave detection |
A-1, B-2, C-4, D-3
A-4, B-1, C-2, D-3
A-2, B-3, C-1, D-4
A-3, B-4, C-2, D-1