Question : Choose the word that can substitute for the given group of words.
A unit to measure light

Option 1: Lumen

Option 2: Watt

Option 3: Horse-power

Option 4: Ampere

Question : The SI unit of work is ______.

Option 1: decibel

Option 2: joule

Option 3: pascal

Option 4: hertz

Question : Kilowatt-hour (kWh) represents the unit of which of the following?

Option 1: Electrical Power

Option 2: Force

Option 3: Momentum

Option 4: Energy

Question : The important unit of a microprocessor is:

Option 1: ALU

Option 2: array of registers

Option 3: control unit

Option 4: All of the above

Question : The unit digit in the product $7^{71}\times 6^{59}\times 3^{65}$ is:

Option 1: $1$

Option 2: $2$

Option 3: $3$

Option 4: $4$