please answer these questions.
1)Which system uses DC to DC high voltage gain
a) solar system
b) battery backup

2)In aerodynamics turbine which element is not there
a)stator
b)compressor
c)fuel intake system
d)fans
3)To have a variable speed we have
a) Induction motor
b) Shunt motor
c) traction motor

4) which system need more stability
a)Automatic washing machine
b)traffic signaling system
c) home heater system
d) motor with piston control

5) if we have two nodes A and B and potential difference between A and B is Vab then which node can be taken as reference
a) A
b) B
c) both A and B
d ) ground

6) basic element for all organization is
a) planning
b) .....
c.....

7)freedom moment in 1857 against British raj was based on
a) Islamic ideology
b) Political ideology
c).......

8)................ protection is used fro both AC and DC ?
a).........
b).........
c).........

9) which configuration is used to convert high impedance to low impedance
a) summing amplifier
2) differential amplifier
3).................
4)...............