With each visit of this Electrical and Electronics Measurements and Instrumentation online Quiz / Practice Test, the list of MCQs / Objective Questions presented will be different, offering you a diverse set of practice opportunities. This variability encourages you to practice extensively, refining the accuracy of your answers and your overall grasp of the content. By utilizing this resource, you can hone your skills and become more adept at managing time constraints during actual exams.
Test Instructions Question type Randomized MCQs.Changes every time you visit the test Total Number of Questions 30 Time Limit 20 Minutes Points 1 Point for each Question
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Question 1 of 30
Q-1.A reversed biased diode in addition to a forward biased diode is used in rectifier type voltmeters using half wave rectification. The use of reverse biased diode is
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Question 2 of 30
Q-2.An aquadag is used in a CRO to collect :
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Question 3 of 30
Q-3.In a Measurement System, the open loop transfer function is 10 and changes by 10 percent .if a closed loop system is adopted wherein the feedback system has a transfer function of 100. What will be the changes in output in the case of open loop and in closed loop systems?
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Question 4 of 30
Q-4.Systematic errors are
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Question 5 of 30
Q-5.The reading of polar type a.c potentiometer when measuring the reactance of a coil areI = 12 ∠ 13.8° , V =27.8 ∠ 29.7°.The reactance of the coil is :
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Question 6 of 30
Q-6.The international standard of length is defined in terms of :
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Question 7 of 30
Q-7.An A.M. broadcast radio transmitter radiates 10 kW when the modulation percentage is 60. What is the power of carrier?
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Question 8 of 30
Q-8.A make break switch is provided to disconnect the battery when the meter is not in use in
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Question 9 of 30
Q-9.Clamps on meters are used because
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Question 10 of 30
Q-10.A batch of resistors have a mean value of 100 Ω and a standard deviation σ = 0.2 Ω. The probability corresponding to 2σ is 0.9546. The value of odds that randomly selected resistor will lie within 100.00 ± 0.40 Ω is:
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Question 11 of 30
Q-11.The unit luminance are
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Question 12 of 30
Q-12.A 1 mA d’Arsonval movement has a resistance of 100Ω. It is to be converted to a 10 V voltmeter. The value of multiplier resistance is
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Question 13 of 30
Q-13.Post acceleration is needed in a CRO if the frequency of the signal is :
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Question 14 of 30
Q-14.The closed loop gain of an OPAMP is dependent upon whether the OPAMP is used,
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Question 15 of 30
Q-15.The maximum current that can be drawn from a saturated Weston Cell without damaging it,is
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Question 16 of 30
Q-16.In a critically damped galvanometer the deflection at a time 0.9 times the time of free oscillations after a current is passed through the moving coil is approximately
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Question 17 of 30
Q-17.In a single phase induction type energy meter, the lag adjustment is done :
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Question 18 of 30
Q-18.Zener sources when used as voltage standards :
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Question 19 of 30
Q-19.For a second order system, the settling time for ±2% band is _____________Where ξ = damping factor and ωη = natural frequency : rad/s.
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Question 20 of 30
Q-20.A first order thermometer has a time constant of 50 s. it is subjected to a sinusoidal input cycling at 0.002 Hz. The time lag of instrument is :
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Question 21 of 30
Q-21.In measurement systems, which of the following static characteristics are desirable?
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Question 22 of 30
Q-22.Shunt-type ohmmeters have a switch along with the battery to
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Question 23 of 30
Q-23.The rotor of a synchro-transmitter
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Question 24 of 30
Q-24.In a transducer, the observed output deviates from the correct value by a constant factor the resulting error is called
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Question 25 of 30
Q-25.The output of an OPAMP is 2 V peak. The slew rate is 5 V / µ. The input sinusoidal which can be reproduced with no distortion has the maximum frequency of :
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Question 26 of 30
Q-26.Strain guage rosettes are used
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Question 27 of 30
Q-27.In a reed type frequency meters all the reeds :
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Question 28 of 30
Q-28.Switching time of LEDs is of the order of
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Question 29 of 30
Q-29.A direct voltage is applied to a peak diode voltmeter whose scale is calibrated to read rms voltage of a sine wave. If the meter reading is 36 Vrms, the value of the applied direct voltage is
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Question 30 of 30
Q-30.The gas used in plasma screens is a mixture of
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