Quiz for CERT4 (M/F)-ENGINEERING
Q1: In the United Arab Emirates what is the standard voltage and the frequency?
Ans: standard voltage is 220 V and the frequency is 50 Hz (220, 50)
Q2: What kind of voltage or current supply is mainly distributed and used for domestic
purpose?
Ans: alternating current (AC)
Q3: How current in an electric circuit can be reduced, if supply voltage is remain same?
Ans: by increasing resistance (resistor)
Q4: What is the resistance of an electrical lamp of 10 Watts, 200V?
Ans: 4000 Ohm
Q5: If the current flowing through a lamp of 40 Ohms is 5A. How much power will be
consumed by the lamp?
Ans: 1000 Watt
Q6: Which is only GCC country having power supply frequency of 60 Hz?
Ans: Saudi Arabia
Q7. What is the Purpose of Fuses and circuit breakers in an electrical circuit?
Ans: protection / protect circuit
Q8: What kind of voltage can be stored by battery?
Ans: direct current (DC)