Q1:- A solar cell is
1.
Photovoltaic device
2.
Photo radiation device
3.
Photo emissive device
4.
Photo conductive device
ANSWER:-1
Q2:- E.C.E full form
1.
Electro chemical equivalent
2.
Electro chemical electrolysis
3.
Electrical control equivalent
4.
Electrical contact earthing
ANSWER:-1
Q3:- Closed winding is used in
1.
Dc m/c
2.
Ac m/c
3.
Transformer
4.
Both 1 and 2
ANSWER:-1
Q4:- open winding is used in
1.
Ac m/c
2.
Dc m/c
3.
Transformer
4.
Both 1 and 2
ANSWER:-1
Q5:- Coil pitch is also known as
1.
Winding pitch
2.
Coil span
3.
Pole pitch
4.
Both 1 and 2
ANSWER:-4
Q6:- The general length of 40 watt florescent tube
1.
40 cm
2.
120 cm
3.
15 cm
4.
72 cm
ANSWER:-2
Q7:- which of the following lamp is used in light house
search light and cinema hall projector
1.
Arc lamp
2.
HPMV lamp
3.
Tungsten filament lamp
4.
Neon lamp
ANSWER:-1
Q8:- by any lamp’s effect anything is seeing rotate in
opposite direction due to
1.
Wrong connection of chock(blast)
2.
Stroboscopic effect
3.
Weekness of tube
4.
All
ANSWER:-2
Q9:-condition for the validity under ohm’s law
1.
Temperature should remain constant
2.
Current should be proportional to voltage
3.
Resistance must be wire wound type
4.
All
ANSWER:-1
Q10:- when the voltage applied across an electric iron is
halved the power consumption of the iron will reduced to
1.
Half
2.
Three forth
3.
One forth
4.
None
ANSWER:-3
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