MMUP EXAMINATION-2014 1. If a fuse rating is 8Amps then it requires: a) Minimum 8amps current to energize the fuse b) More than 8 amps to energize the fuse. c) It will melt if the current is more than 8amps. 2. The most Hi Input impedance is obtained in: a) Bipolar NPN b) Bipolar PNP c) MOSFET d) Both Bipolar and MOSFET 3. Most economic method to start a single phase motor a) Split Phase b) Capacitance Type 4. In Power Station the efficiency of a turbine is 80% and generator is 90%, What is the overall efficiency? a) 80% b) 90% c) 70% 5. Synchronous motor is said to have over excited when the Power factor is: a) Normal b) Leading c) Lagging 6. Define Power Factor? a) Sine of Voltage and Current b) Cosine of Voltage and Current c) Tan of Voltage and Current 7. Important Factor in Distributed System a) Reliability b) Efficiency 8. Zener Diode is used for a) Voltage Regulator 9. Circuit Breaker commonly used in industrial application a) SF6 b) Air Circuit
10. Circuit Breaker commonly used in industrial application a) SF6 b) Air Circuit 11. Programming used for smoke detector and control systems a) DSP b) Microcontroller c) FGPA d) ASCI 12. EARTHING ELECTRODE IS FILLED IN SAND : a) LIME SAND + MIXTURE b) SAW DUST + MIXTURE 13. WHEN TEMPERATURE INCREASE WHAT HAPPENS TO RESISTANCE. a) INCREASE b) DECREASE 14. What is the difference between electrical and electronics. a) Electrical System generate Electrical Energy/Electronics System utilize Electrical Energy b) Electrical System generate more Electrical Energy and Electronics System generate less c) Electrical Energy- Electrical System use Direct Current. Electronics System use indirect current. 15. Uninterruptable Power Supply is used for : a) Connected in series for the critical load during normal operation b) Connected in parallel for the critical load during normal operation c) Connected in series for the critical load during voltage variation d) Connected in parallel for the critical load during voltage variation 16. If a wire is above the transformer, where it is connected? a) Positive b) Negative c) Earth 17. If the Fire Panel is to be installed in the field, atmospheric pressure is 52°C and the electronics inside is allowed to produce only 45°C what is the appropriate method to install: a) Panel shall be CE certified b) Panel shall be Class-1 Certified c) Panel shall be provided with some cooler or purge
