42) If four 80 °F capacitors are connected in parallel, the net capacitance is

20 °F

80 °F

160 °F

320 °F

Answer is:

320 °F

RRB ALP Mechanical Question Paper 2014 Set-1 with Answer Key

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43) The transformer used to decrease the magnitude of the alternating voltage is a

step-up transformer

step-down transformer

step-in transformer

step-out transformer

Answer is:

step-down transformer

44) When two bodies are rubbed against each other

They acquire equal and similar charges

They acquire equal and opposite charges

They acquire unequal and similar charges

They acquire unequal and opposite charges

Answer is:

They acquire equal and opposite charges

45) Lightning is caused in the sky due to the flow of charge between

two oppositely charged clouds

two similarly charged clouds

one neutral and one charged cloud

None of the these

Answer is:

two oppositely charged clouds

46) Which of these converts sunlight directly into electrical energy?

Solar cooker

Solar cell

Solar furnace

Solar water heater

Answer is:

Solar cell

RRB ALP Mechanical Question Paper 2014 Set-1 with Answer Key

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42) If four 80 °F capacitors are connected in parallel, the net capacitance is

320 °F

RRB ALP Mechanical Question Paper 2014 Set-1 with Answer Key

Related RRB ALP Mechanical Question Paper 2014 Set-1 with Answer Key

43) The transformer used to decrease the magnitude of the alternating voltage is a

step-down transformer

44) When two bodies are rubbed against each other

They acquire equal and opposite charges

45) Lightning is caused in the sky due to the flow of charge between

two oppositely charged clouds

46) Which of these converts sunlight directly into electrical energy?

Solar cell

RRB ALP Mechanical Question Paper 2014 Set-1 with Answer Key