Active High pass filters consist : - Operational amplifiers
Description : The PID controller consist of : - a) A Passive mode, an Infinity mode, a Different mode b) A Proportional mode, A Integral mode, A Derivative mode c) . A Positive mode, A Inductive Mode, A Directional mode d) All the above
Last Answer : The PID controller consist of : - A Proportional mode, A Integral mode, A Derivative mode
Description : Abating point number consist of - a) A mantissa only b) Base only c) An exponent only d) all the above
Last Answer : Abating point number consist of - all the above
Description : When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when: a) Static strain are being measured b) Dynamic strain are being measured c) Both Static and dynamic strain are being measured d) None of the above
Last Answer : When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when: Dynamic strain are being measured
Description : Which of the following filters block FM radio band for TV channels (2 to 13)? A. High-pass filter B. Band reject filter C. Low-pass filter D. Band-pass filter
Last Answer : B. Band reject filter
Description : One of the following in an active transducer : - a) Strain gauge b) LVDT c) Photo colt aoc cell d) Photo emissive cell
Last Answer : One of the following in an active transducer : - Photo colt aoc cell
Description : Butterworth low pass filters?
Last Answer : The magnitude response of the Butterworth filter decreases monotonically as the frequency Ω increases from zero to infinity. The magnitude response of the Butterworth filter closely approximates the ideal response as the order N decreases . The poles of the Butterworth filter lies on a unit circle.
Description : What are the advantages of active filters?
Last Answer : Active filters used op- amp as the active element and resistors and capacitors as passive elements.
Description : The output of an AND gate with three inputs, A, B and C, is HIGH when __________. a) A=1,B=1,C=0 b) A= 0,B= 0,C= 0 ' c) A=1,B=1,C=1 d) A=1,B= 0,C= 1
Last Answer : Sahara theme port n a n d Gate if two input Array Logic 0 the output is dash
Description : The effective resistance of a coil at high frequency is more than its de resistance on account of : - a) Skin effect b) Proximity effects c) Eddy current losses d) All the above
Last Answer : The effective resistance of a coil at high frequency is more than its de resistance on account of : - All the above
Description : What do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.
Last Answer : Active Filter: Active Filter is formed by using active element along with the passive components. Advantages of Active filter over Passive filter: High value of pass band gain can be obtained. It is ... pass band. Stop Band Filter: The frequency range which is attenuated is known as stop band.
Description : For treating the sewage of a large city, you will recommend A. A sedimentation tank and an activated sludge treatment plant B. A plant consisting of Imhoff tanks with low rate trickling filters C. Sedimentation tanks with high rate trickling filters D. None of these
Last Answer : ANS: A
Description : Rapid gravity filters (A) Were developed by G.W. Fuller (B) Make use of coarser sand with effective size as 0.5 mm (C) Yield as high as 30 times the yield of slow sand filters (D) All the above
Last Answer : (D) All the above
Description : In order to reduce the harmful effects of harmonics on the A.C. side of a high voltage D.C. transmission system ______are provided. (A) synchronous condensers (B) shunt capacitors (C) shunt filters (D) static compensators
Last Answer : Ans: C Xc= 1/ ωc
Description : Which one of the following frequency meter is suitable for measuring radio frequency? (a) Vibrating reed frequency meter (b) Weston frequency meter (c) Electrical resonance frequency meter (d) Heterodyne frequency meter
Last Answer : Which one of the following frequency meter is suitable for measuring radio frequency? (a) Vibrating reed frequency meter (b) Weston frequency meter (c) Electrical resonance frequency meter (d) Heterodyne frequency meter
Description : Which of the following factors limit the deflection of the pointer of a PMMC instrument of about 90o? 1. Its damping mechanism 2. Linearity of magnetic field in which the coil moves 3. Control spring arrangement 4. ... Only 1 and 3 (b) Only 2 and 4 (c) Only 2 and 3 (d) Only 1 and 4
Last Answer : Which of the following factors limit the deflection of the pointer of a PMMC instrument of about 90o? 1. Its damping mechanism 2. Linearity of magnetic field in which the coil moves 3. Control spring arrangement 4. ... Only 1 and 3 (b) Only 2 and 4 (c) Only 2 and 3 (d) Only 1 and 4
Description : Torque/weight ratio of an instrument indicates (a) Selectivity (b) Accuracy (c) Fidelity (d) Sensitivity
Last Answer : Torque/weight ratio of an instrument indicates Sensitivity
Description : Wagner's earth devices are used in AC bridge circuits for (a) Eliminating the effect of earth capacitances (b) Eliminating the effect of intercomponent capacitances (c) Eliminating the effect of stray electrostatic fields (d) Shielding the bridge elements
Last Answer : Wagner's earth devices are used in AC bridge circuits for Eliminating the effect of earth capacitances
Description : Loading effect is principally caused by instruments (a) High resistance (b) Low sensitivity (c) High sensitivity (d) High range
Last Answer : B
Description : Thermocouple instruments can be used for a frequency range upto (a) 100Hz (b) 5000 Hz (c) 1 MHz (d) 50 MHz and above
Last Answer : Thermocouple instruments can be used for a frequency range upto 50 MHz and above
Description : In a single phase induction energy meter, in order to obtain true value of energy, the shunt magnetic flux should lag behind the applied voltage by (a) 90o (b) 0o (c) 45o (d) 60o
Last Answer : In a single phase induction energy meter, in order to obtain true value of energy, the shunt magnetic flux should lag behind the applied voltage by 90o
Description : Gearing, blacklash, friction between moving parts and scale accuracies are generally known as (a) Instrument errors (b) Interference errors (c) Calibration errors (d) Interaction errors
Last Answer : Gearing, blacklash, friction between moving parts and scale accuracies are generally known as Instrument errors
Description : If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of deflection plates is 2 cm, the distance between the plates is 1 cm and accelerating voltage is 500 V, deflection sensitivity is (a) 33.2 V/cm (b) 0.03 cm/V (c) 66.4 V/cm (d) 0.015 cm/V
Last Answer : If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of deflection plates is 2 cm, the distance between the plates is 1 cm and accelerating voltage is 500 V, deflection sensitivity is 0.03 cm/V
Description : The disc of a single phase Induction-type energy meter makes 60 revolutions in 6 minutes. Meter Constant is 1200 rev/kWh. Power consumption in the load is (A) 1.2 kW (B) 1 kW (C) 600 W (D) 500 W
Last Answer : The disc of a single phase Induction-type energy meter makes 60 revolutions in 6 minutes. Meter Constant is 1200 rev/kWh. Power consumption in the load is 500 W
Description : The potential coil of a single phase dynamometer wattmeter has 4840 Ohm resistance. Voltage across the load is 220 V. With the potential coil connected on the load side, the meter indicates 100 W. Approximate percentage error due to wattmeter connection is (A) 11% (B) 9% (C) 1.1% (D) 3%
Last Answer : The potential coil of a single phase dynamometer wattmeter has 4840 Ohm resistance. Voltage across the load is 220 V. With the potential coil connected on the load side, the meter indicates 100 W. Approximate percentage error due to wattmeter connection is 11%
Description : If stator field is rotating in clockwise direction rotor rotates in (A) any direction (B) cannot predict (C) anticlockwise (D) clockwise
Last Answer : If stator field is rotating in clockwise direction rotor rotates in clockwise
Description : What is the line current of a circuit when the current transformer of 1000 : 5 rating measures 4 amp? (A) 5000 amp (B) 1000 amp (C) 400 amp (D) 800 amp
Last Answer : What is the line current of a circuit when the current transformer of 1000 : 5 rating measures 4 amp? (A) 5000 amp (B) 1000 amp (C) 400 amp (D) 800 amp
Description : What is the vector location of TRAP interrupt? (A) 0000 h (B) 0008 h (C) 0014 h (D) 0024 h
Last Answer : What is the vector location of TRAP interrupt? 0024 h
Description : An amplifier has a voltage gain of 50; this gain in dB will be (A) 34 dB (B) 68 dB (C) 41 dB (D) 14 dB
Last Answer : An amplifier has a voltage gain of 50; this gain in dB will be 34 dB
Description : Converter is a device for transforming (A) ac to dc (B) dc to dc (C) dc to ac (D) ac to ac
Last Answer : Converter is a device for transforming ac to ac
Description : The input frequency is 50 Hz. The ripple frequency in a 12 phase full wave rectifier is (A) 1200 Hz (B) 600 Hz (C) 100 Hz (D) 50 Hz
Last Answer : The input frequency is 50 Hz. The ripple frequency in a 12 phase full wave rectifier is 1200 Hz
Description : The grid in triodes is made in the form of (A) mesh (B) metal strip (C) metallic cylinder (D) single filament wire
Last Answer : The grid in triodes is made in the form of mesh
Description : The 555 timer can be used in which of the following configurations ? a) astable, monostable b) monostable, bistable c) astable, toggled d) bistable, tristable
Last Answer : The 555 timer can be used in astable, monostable configurations.
Description : The dc current through each diode in a bridge rectifier equals : - a) the load current b) half the dc load current c) twice the dc load current d) one-fourth the dc load current
Last Answer : The dc current through each diode in a bridge rectifier equals : - the load current
Description : Intrinsic semiconductor material is characterized by a valence shell of how many electrons? a) 1 b) 2 c) 4 d) 6
Last Answer : Intrinsic semiconductor material is characterized by a valence shell of 4 electrons.
Description : Sample -and -hold circuits in ADCs are designed to : - a) sample and hold the output of the binary counter during the conversion process b) stabilize theAD Cs threshold c) voltage ... d) signal during the conversion process sample and hold the ADC staircase waveform during the conversion process
Last Answer : Sample -and -hold circuits in ADCs are designed to : - voltage during the conversion process stabilize the input analog
Description : Base 10 refers to which number system? a) binary coded decimal b) decimal c) octal d) hexadecimal
Last Answer : Base 10 refers to decimal number system.
Description : A basic S -R flip-flop can be constructed by cross -coupling which basic logic gates : - a) AND or OR gates b) XOR or XNOR gates c) NOR or NAND gates d) AND or NOR gates
Last Answer : A basic S -R flip-flop can be constructed by cross -coupling which basic logic gates : - NOR or NAND gates
Description : A zero -level detector is a - a) comparator with a sine wave output b) comparator with a trip point referenced to zero c) peak detector d) limiter
Last Answer : A zero -level detector is a - comparator with a trip point referenced to zero
Description : A single transistor can be used to build which of the following digital logic gates : - a) AND gates b) OR gates c) NOT gates d) NAND gates
Last Answer : a
Description : The maximum phase lead is contributed by a phase lead network at: - a) mid corner frequency b) lower corner frequency c) upper corner frequency d) phase corner frequency
Last Answer : The maximum phase lead is contributed by a phase lead network at: - mid corner frequency
Description : With a 12 V supply, a silicon diode, and a 370 - ohm resistor in series, what voltage will be dropped across the diode? a) 0.3V b) 0.7V c) 0.9V d) 1.4V
Last Answer : 0.7V
Description : Which of the following describes the operation of a positive edge - triggered D -type flip-flop? a) if both inputs are HIGH, the output will toggle b) the output will follow the input on the leading ... on the leading edge of the clock and is passed to the output on the trailing edge of the clock.
Last Answer : Which of the following describes the operation of a positive edge - triggered D -type flip-flop? the output will follow the input on the leading edge of the clock
Description : The polarity of induced voltage while a field is collapsing is : - a) independent of the force creating the field b) opposite to the force creating c) the field identical to the force creating d) the field present only if the force is stationary
Last Answer : The polarity of induced voltage while a field is collapsing is : - opposite to the force creating
Description : The basic logic gate whose output is the complement of the input is the: - a) OR gate b) AND gate c) inverter d) comparator
Last Answer : The basic logic gate whose output is the complement of the input is the: - inverter
Description : Convert hexadecimal value 16 to decimal: - a) 2210 b) 1610 c) 1010 d) 2010
Last Answer : Convert hexadecimal value 16 to decimal: - 2210
Description : How many bits are needed to address 64 K memory: - a) 3 b) 10 c) 16 d) 32
Last Answer : How many bits are needed to address 64 K memory: - 16
Description : Which of the following flip-flop do not have race problem ? a)T flip-flop b) D flip-flop c) JK flip-flop d) Master Slave flip-flop
Last Answer : Which of the following flip-flop do not have race problem ? a)T flip-flop b) D flip-flop c) JK flip-flop d) Master Slave flip-flop
Description : The ASCII is an input output code : - a) it is a two bit code b) it is a four bit code c) it is a seven bit code d) it is a eight bit code
Last Answer : The ASCII is an input output code : - it is a seven bit code
Description : LED emits light : - a) only in RED color b) only in YELLOW color c) only in GREEN color d) In RED, GREEN, YELLOW and AMBER color
Last Answer : LED emits light : - In RED, GREEN, YELLOW and AMBER color
Description : Wait status can be achieved in 8085 microprocessor by : - a) TRAP b) DMA c) HOLD d) INTR
Last Answer : Wait status can be achieved in 8085 microprocessor by : - HOLD