Multiple Choice Questions on Measurement and Instrumentation and Practice Test 5
There are 9 questions to be attended in 20 minutes. The questions are on Measurement and Instrumentation. The study material is provided along with the remarks for each answer after you complete the examination to help building knowledge on the subject. It may be better to study before attempting the mock drill so that by the time you reach 9th of the test, you score is around 80-90%. There are 9 question banks of 9 question each and you should attempt each of these question bank to test your preparedness for the final day of the RRB examination for SSE and JE to be held in Dec.
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There are 9 questions to be attended in 20 minutes. The questions are on Measurement and Instrumentation. Read the study material before making an attempt so that you build your confidence in the subject. This is the fifth of the series of 9 questions paper that will appear before the RRB examination for SSE and JE to be held in Dec.
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The Answer Key:
Sl No. Question Answer Remark 1 It is decided to convert 1mA full scale deflection 100 Ω resistance into 100 V voltmeter. What series resistance in ohms will be connected? 99900 Series resistance is given by R= (V/I)-Coil resistance. [100/(1*10⁻³)]-100 = 99900 Ω 2 Sensitivity of measurement defines change in the output with the change in the quantity being measured The answer in given option 1 is actually tolerance, 2- tolerance, 3- Right answer 4- Threshold 3 Subtense Bar is used for the measurement of Distance 4 What will happen to the gauze pressure of a tire when the vehicle is at an altitude of 1000m? remains same The absolute pressure will reduce but gauze pressure remains the same. 5 How to use 5A (AC) rated moving iron ammeter to measure 1000 A (AC) current? Using current transformer For measurement applications in High power sub-stations, the current and voltages are very high and shunt or series resistance cannot work. Current and Potential transformers are used to reduce the level to its operating level of the instrument. 6 Megger is derived from the Name of the company “Megger company” Megger was patented by Megger company and since than named after the trade mark. 7 Ultrasonic wave is a sound wave Ultrasonic is a sound wave as a pattern of disturbance caused by the movement of energy travelling through a medium (such as air, water, or any other liquid or solid matter) as it propagates away from the source of the sound. The source is some object that causes a vibration, such as a ringing telephone, or a person’s vocal chords. The vibration disturbs the particles in the surrounding medium; those particles disturb those next to them, and so on. 8 LVDT stands for All of them 9 The difference in dry bulb and wet bulb temperature shown when air is fully saturated is same Wet temperature is always less than dry bulb and as the humidity increases, it reaches near to dry bulb temperature. Air flow is the general requirement for evaporation to take place for correct reading of wet bulb temperature. -
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Question 1 of 9
1. Question
It is decided to convert 1mA full scale deflection 100 Ω resistance into 100 V voltmeter. What series resistance in ohms will be connected?
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Question 2 of 9
2. Question
Sensitivity of measurement defines
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Question 3 of 9
3. Question
Subtense Bar is used for the measurement of
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Question 4 of 9
4. Question
What will happen to the gauze pressure of a tire when the vehicle is at an altitude of 1000m?
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Question 5 of 9
5. Question
How to use 5A (AC) rated moving iron ammeter to measure 1000 A (AC) current?
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Question 6 of 9
6. Question
Megger is derived from the
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Question 7 of 9
7. Question
Ultrasonic wave is a
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Question 8 of 9
8. Question
LVDT stands for
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Question 9 of 9
9. Question
The difference in dry bulb and wet bulb temperature shown when air is fully saturated is
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