Which resistor is used to measure light intensity? A VDR B NTC C PTC D LDR Explanation An LDR (Light-Dependent
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ITI Electrician Second Year MCQ (Part-4)
What is the working principle of single phase induction motor? A Lenz’s law B Joule’s law C Faraday’s laws of
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What is the formula to calculate the slip speed (Nslip) of 3 phase squirrel cage induction motor? A Nslip =
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Which instrument is used to measure armature winding resistance? A Megger B Multimeter C Series‐type Ohmmeter D Kelvin bridge Explanation
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What is the name of the part marked as ‘X’ in a DC generator? A Armature core B Brush C
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Which type of transformer is used for high-frequency applications? A Ring-core transformer B Ferrite-core transformer C Silicon-steel core transformer D
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Which material is used to make the heating element? A Silver B Copper C Nichrome D Aluminium Explanation Nichrome is
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Which force is required to move the pointer from zero position in an indicating instrument? A Controlling force B Deflecting
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What is the S.I. unit of luminous intensity? A Lux B Lumen C Candela D Steradian Explanation Candela is the
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What is the minimum size of copper earth continuity conductor used in single-phase domestic wiring as per BIS? A 3
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