Related Questions

Phase lag of the frequency response of a second order system to a sinusoidal forcing function
A Is 30°
B Is 90° at the most
C Approaches 180° asymptotically
D Is 120°
A sinusoidal variation in the input passing through a linear first order system
A Becomes more oscillatory (frequency increases)
B Becomes less oscillatory (frequency decreases)
C Gets amplified (magnitude increases)
D Gets attenuated (magnitude decreases)
Overmodulation (amplitude) occurs when signal amplitude is ___________ carrier amplitude
A Equal to
B Greater than
C Less than
D None of the above
It is observed that in a certain sinusoidal oscillation, the amplitude is linearly dependent on the frequency f. If the maximum velocity during the oscillation is V, then V must be proportional to
A f
B $$\frac{1}{{\text{f}}}$$
C $$\frac{1}{{{{\text{f}}^2}}}$$
D f2
Response of a system to a sinusoidal input is called __________ response.
A Impluse
B Unit step
C Frequency
D None of these
Phase lag of the sinusoidal response of a first order system is
A 120°
B 30°
C 180°
D 90°
Biopsy report from a curettage material of a sinus tract over mandible of a 30 years old female read granulation tissue with many neutrophils few forcing body giant cells bone. The possible nature of the lesion in
A Chronic osteomyelitis
B Tuberculosis
C Undifferentiated carcinoma
D Dentigerous cyst
E Actinomycosis
Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres.
A Acrylic
B Polyester
C Nylon 6:6
D Polypropylene
The operation of forcing additional air under pressure into the engine cylinder is known as
A Supercharging
B Carburetion
C Turbulence
D Delay period
The operation of forcing additional air under pressure in the engine cylinder is known as
A Scavenging
B Turbulence
C Supercharging
D Pre-ignition

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