160751. For the unity feed back control system whose open loop transfer function isnatural frequency of oscillation is :
160752. The number of roots on the equation 2s4 + s3 + 2s2 + 5s + 7 = 0 that lie in the right half of s-plane is:
160753. The loop gain GH of a closed loop system is given by the following expressions(s + 2)(s + 4)The value of K for which the system just becomes unstable is :
160754. For a signal f(t) = 15 sin 4/rf 5 cos 8/rt + 3 sin 18 x 11 the minimum sampling frequency should be :
160755. What is the rms value of the following voltage waveform?i_________2
160756. Given two continuous time signals X(t) = e~' and y(t)-e/Zt which exist for t> 0, their convolution is:
160757. A rectangular current pulse of duration T and magnitude 1 has the Laplace transform :
160758. For the function F(s) = —5—^----------- the initial value of f{t) is equal to:s(s + 10s +1)
160759. What does Vout equal in the following figure?
160760. For a Butter worth filter of second order, the gain of the amplifier should be :
160761. What arc the trip points of the following Schmitt trigger circuit?
160762. The number of times the instruction sequence below will loop before coming out of loop is : A: MOV AL, OOHINC AL JNZ A
160763. For the DAC shown below, what is the resolution for digital inputs of 0 and 1?
160764. In the following figure, if C = 10pu F suid L = ImH, and V0 = 100 V, the peak current through the diode is:
160765. If the supply voltage to a 3 phase full wave controlled rectifier is 100 V (rms line - to - line), what is the maximum average voltage output possible?
160766. The lowest dominant harmonic frequency component from a sine — triangle PWM voltage with a carrier frequency of 1 kHz and modulating voltage of 50 Hz is :
160767. Which time harmonic order voltage will produce negative torque in an induction machine?
160768. In a sine — PWM modulating sine wave, 10 V peak of 3rd harmonic component was added. What will be the 3rd harmonic component in the line — to — line voltage output?
160769. A high speed device used in CPU for temporary storage during processing is called :
160770. Sensible heat factor is:
160771. Amount of heat required to raise the temperature of one pound of water through 1°C is called:
160772. Oil separator is filled in between :
160773. H.F.C. should not vent into atmosphere because :
160774. Process of changing solid into its vapour state without passing through liquid state is :
160775. Latent heat of fusion of ice is :
160776. Sling psychrometer is used to measure :
160777. In air refrigeration refrigerating effect is produced by
160778. Accumulator is provided for :
160779. In air conditioning of aeroplanes the refrigerantused is:
160780. Select the wrong characteristics of refrigerant:
160781. The function of duct in air conditioning unit is :
160782. Commonly used refrigerant in commercial ice plant is:
160783. The C.O.P. of a domestic refrigerator in comparison to domestic air conditioner will
160784. An Air washer can work as :
160785. The brine is always used as a secondary refrigerant in :
160786. In winter air conditioning the process used is :
160787. At which point °C scale and °F scale will be same:
160788. Sub cooling is a process of cooling the refrigerant before :in vapour compression refrigeration system
160789. The milk is stored at a temperature of:
160790. Absolute zero temperature is taken as :
160791. A thermostatic expansion valve function with :-
160792. For ammonia refrigerating system the tubes of a shell and tube condenser are made of Confusedhell and tube condenser are made of:
160793. Convert from CFC 12 to HFC 134 A the compressor displacement will be :
160794. The type of condenser used in water cooler :
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