2 Jul 2025 ELECTRICIAN 2nd YEAR MODULE – Circuit Breakers and Relays ONLINE TEST by admin | posted in: nimi online test, nimionilne, NSQF, NSQF LEVEL 4, online test AITT | 0 TRANSLATE THIS QUIZ IN YOUR LANGUAGE इस प्रश्नोत्तरी का अपनी भाषा में अनुवाद करें <<123456789101112131415>> 0% Question 1 of 15 1. What is the function of relay to the breaking operation of circuit breaker in control circuit? Analyzing the condition of breaker Interpreting the fault situation to operate breaker Sensing the fault quantities Controlling the Speed in case of faultQuestion 1 of 15Question 2 of 15 2. What is the effect, if the test button marked as 'X' is closed permanently in ELCB? Circuit functions normally Circuit switch off completely Circuit will not trip on leakage Circuit trips intermittentlyQuestion 2 of 15Question 3 of 15 3. Which type of relay is used in both A.C and D.C supply? Thermal relay Clapper-type armature relay Impulse relay Reed relayQuestion 3 of 15Question 4 of 15 4. What is the function of Buchholz relay in power transformer? Open circuit and earth fault protection Open circuit and over voltage protection Over load and short circuit protection Over voltage and earth fault protectionQuestion 4 of 15Question 5 of 15 5. What is the defect in an air circuit breaker, if trips intermittently on loading? Insufficient air pressure Incorrect setting of relay Excessive heat Line voltage is too highQuestion 5 of 15Question 6 of 15 6. How the rupturing capacity of circuit breaker is rated? MVA KW KV KVARQuestion 6 of 15Question 7 of 15 7. Which circuit breaker is used as a switch and protective device in the domestic wiring circuit? Miniature circuit breaker Moulded case circuit breaker Earth Leakage circuit breaker Air circuit breakerQuestion 7 of 15Question 8 of 15 8. What is the pick-up voltage in a over voltage relay indicated? Minimum voltage to start the relay Minimum voltage rating of relay Working voltage of relay Maximum voltage rating of relayQuestion 8 of 15Question 9 of 15 9. What is the purpose of trip coil used in circuit breakers? Accurate operation Easy operation Emergency operation Remote operationQuestion 9 of 15Question 10 of 15 10. What is the name of circuit breaker? Vacuum circuit breaker Air blast circuit breaker Oil circuit breaker Air break circuit breakerQuestion 10 of 15Question 11 of 15 11. What is the defect in a oil circuit breaker if the oil heats up excessively? Line voltage is too high Defective tripping mechanism Poor dielectric strength Excessive loadQuestion 11 of 15Question 12 of 15 12. Which type of load is protected by 'G' series MCB? General lighting systems Air conditioners Ovens GeysersQuestion 12 of 15Question 13 of 15 13. Which relay hold their contacts in position after power is cutoff? Voltage relay Current relay Latching relay Reed relayQuestion 13 of 15Question 14 of 15 14. Which circuit breaker is installed along with wiring circuit against leakage current protection? MCCB MCB ELCB OCBQuestion 14 of 15Question 15 of 15 15. What is the cause for the defect if phase to ground fault on the transmission line? Insulation failure Fuse failure Human error Components failureQuestion 15 of 15 Loading...
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