Basic Electrical Engineering set 2
Hi friends, in this post, I would like to discuss with you some objective questions on Basic Electrical Engineering. This will be helpful for RRB JE, SSC JE, Industrial Extension officer Kerala PSC,Sub Engineer Electrical, Line Man, Electrician etc.
1. Which device stores electrical energy?
ยท Inductor
ยท Capacitorโฆโฆ
ยท Thermistor
ยท Resistor
2. What is the unit of conductance?
ยท Ohm
ยท Mhoโฆ.
ยท Henry
ยท Watt
3. Heat developed in conductor is proportional to the square of the:
ยท Currentโฆ.
ยท Voltage
ยท Power
ยท Time
4. From the following materials, which one has higher resistivity at 200 C:
ยท Copper
ยท German silver
ยท Mercury
ยท Nichromeโฆ.
5. The resistance of a heating coil required in a 2500 watts heater used on 200 V main will be
ยท 10.25 ohms
ยท 16 ohmsโฆ.
ยท 25 ohms
ยท 12.5 ohms
6. The resistance of 100 meter length of copper wire of 14SWG IS โXโ OHMS. The resistance of 100 of copper wire of 8 SWG will be
ยท More than โxโ ohms
ยท Equal to โxโ ohms
ยท Less than โxโ ohmsโฆ.
ยท Equal to โxโohms
7. The colour code for 100 ohms resistor is
ยท Black, Red, Orange
ยท Red, Black, Red
ยท Brown, Black, Brownโฆ
ยท Black, Black, Red
8. The sequence of colour band on a 47 K ohm with ยฑ5% tolerance resistor will be
ยท Yellow, violet, yellow and gold
ยท Yellow, violet, orange, and goldโฆโฆโฆ..
ยท Yellow, violet, orange and silver
ยท Yellow, violet, brown and silver
9. The power factor of a purely resistive circuit is
ยท Zero
ยท Unityโฆ..
ยท Lagging
ยท leading
10. 1 M ohm, 1 W resistance is likely to be a:
ยท Wire wound resistor
ยท Carbon resistorโฆ.
ยท Rheostat
ยท None of above
11. If three,30ยตF capacitance are connected in series. Find