eto cadets – ELearn Mariner

Page 1 of 10

A 100W lamp is connected in series with a room heater. If the 100W lamp is replaced by a 60W lamp, the heater output will _______ Increase Decrease Show no changes None of the above

Page 2 of 10

When a fluorescent lamp has reached the end of its useful life, it should be replaced immediately, or the resultant flashing may _______ Blow the lamp's circuit breaker Explode, causing glass to fly in all directions Short circuit the ballast transformer Damage the starter and the ballast

Page 3 of 10

When the current through the coil of an electromagnet is reversed, the direction of the magnetic field is also reversed. True False

Page 4 of 10

The opposition to the magnetic lines of force in a magnetic flux is called _______ Resistance Reluctance Impedance Inductance

Page 5 of 10

The induced voltage across a stationary conductor in a steady magnetic field is zero; True False

Page 6 of 10

The winding resistance of a coil can be increased by _____ the number of turns or by using a ____ wire. Increasing thicker Increasing thinner Decreasing thicker Decreasing thinner

Page 7 of 10

Battery failure in an analog type multimeter can be checked by : measuring the line voltage measuring the resistance of a known resistor the pointer failing to reach "0Ω" with the probe tips connected together and adjusting the resistance range trimmer none of the above

Page 8 of 10

Surge voltage originates in power systems due to ______ Lighting Switching operations Faults Any of the above

Page 9 of 10

An inductor with a resistance of 22Ω would draw 10 A of current when it is connected across a supply of 220V and 60Hz. True False

Page 10 of 10

Three resistances of 200Ω, 0.01Ω & 2000Ω are connected in parallel with a 220-Volt 60Hz supply. The total resistance will be: Less than 0.01Ω More than 100Ω

Quiz for ETO Cadets & Class IV Students – Part 1

Mock test for Electrical Cadets & Class IV – Basic Electricity (Part-1)

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