Practice Units and MeasurementRRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This topic-wise Physics question set covers important concepts related to Units and Measurement, helping you revise essential Physics concepts and understand the types of questions asked in RRB examinations.
Each question includes the correct answer and an explanation to help you understand the concept, strengthen your Physics fundamentals, and revise important Heat topics for RRB Railway examinations.
Start practicing Units and MeasurementRRB PYQs and strengthen your Physics preparation
51
The SI unit of magnetic flux is
RRB NTPC; RRB NTPC
2021; 2021
✓ Answer:DWeber
Magnetic flux is measured in weber (Wb).
52
The commercial unit of electrical energy is
RRB Group D
2022
✓ Answer:CKilowatt-hour
The commercial unit is kilowatt-hour; 1 kWh = 3.6×10^6 J.
53
Unit of power is known as
RRB JE; RRB Group D; RRB Group D; RRB ALP & Technician
RRB JE; RRB Group D; RRB Group D; RRB ALP & Technician
2019; 2018; 2018; 2018
✓ Answer:AWatt
Power is work done per unit time. Its SI unit is watt, equal to joule per second.
54
The SI unit of resistance is equivalent to:
RRB Group D
2022
✓ Answer:Bvolt/ampere
Ohm's law gives R = V/I, so one ohm equals one volt per ampere.
55
The rate of doing work is called power. The unit of power is
RRB NTPC
2021
✓ Answer:DWatt
Power = work/time, so its SI unit is watt (W).
56
Gallon is generally used for
RRB NTPC Stage-I
2016
✓ Answer:CMeasuring the volume
A gallon is a unit of volume; one US gallon is about 3.785 litres.
57
Volt is SI unit of
RRB Group D
2018
✓ Answer:DElectric potential
Volt is the SI unit of electric potential difference.
58
SI unit of pressure is
RRB Group D; RRB Group D; RRB Group D; RRB Group D; RRB NTPC Stage-I; RRB JE
2018; 2018; 2018; 2018; 2016; 2014
✓ Answer:CNewton/m^2
Pressure = force/area, so its SI unit is N/m², the pascal.
59
What is the unit of electric potential?
RRB JE CBT-II
2019
✓ Answer:AVolt (V)
Electric potential is energy per unit charge and is measured in volts.
60
N/m^2 is SI unit of
RRB Group D
2018
✓ Answer:DPressure
N/m² is the pascal, the SI unit of pressure.
Showing 51 – 60 of 94 MCQ Questions | Page 6 of 10
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