Form 3

What is the function of steam in the thermal power plant shown in the diagram above?

• To heat up the turbine

• To produce electricity

• To rotate the turbine

• To be used in chemical reaction

Tags

NGSS.MS-PS3-4

Figure above shows a simple diagram of nuclear power plant. As similar to other power plants (thermal,hydro,wind), which of the part where strong magnets are in-placed.

• Turbine

• Generator

• Reactor

• Condenser

Which of the following is correct for the energy change happened in a biomass power station.

• Chemical energy > Heat energy > Kinetic energy > Electrical energy

• Nuclear energy > Heat energy > Kinetic energy > Electrical energy

• Heat energy > Kinetic energy > Electrical energy

• Chemical energy > Kinetic energy > Electrical energy

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

Alternating current is an electric current that ( )

• flows in on direction only

• flows in unknown directions

• flows in constantly reversing direction

• flows in specific direction depend on the type of circuit

Tags

NGSS.MS-PS4-1

Which of the following is not the function of Cathode Ray Oscilloscope (C.R.O.)?

• Show differences in shape of graph for DC and AC

• Show the direction of current for DC and AC

• Show the resistant for DC and AC

• Show the voltage change for DC and AC

In which arrangement does the LED light up?

• P,Q,R

• P,Q

• P,R

• Q,R

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

Transformer is a device for changing the voltage of ( )

• Alternating current (AC)

• Direct current (DC)

• Direct and alternating current (DC & AC)

• Non of above

Tags

NGSS.HS-PS2-5

Diagram above shows a kettle with rated current of 5A. Which of the following fuse rating is the most suitable for the kettle?

• 4A

• 10A

• 30A

• 7A

Tags

NGSS.MS-ETS1-1

The diagram shows a three-pin plug. Which of the following component could not be found in a two-pin plug？

• Earth wire

• Neutral wire

• Fuse

• Live wire

The electric jug has the rating as shown in the figure above. Calculate its rated current. (P = VI)

• 9.17 A

• 528000 A

• 0.11 A