Practice Properties of Matter RRB 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 question set covers important Physics concepts related to the properties of matter that are useful for Railway exam preparation.
The questions cover important concepts such as elasticity, surface tension, capillarity, flow of liquids, buoyancy and Archimedes’ principle. These questions help candidates revise important concepts and understand the types of Physics questions that can be asked in RRB examinations.
Whether you are preparing for RRB NTPC Properties of Matter PYQ, RRB Group D Properties of Matter PYQ, RRB JE Properties of Matter PYQ, RRB ALP Properties of Matter PYQ, or RRB Technician Properties of Matter PYQ, practice these previous year questions regularly to strengthen your Physics preparation.
Start practicing Properties of Matter RRB PYQs and strengthen your Physics preparation for upcoming Railway examinations.
41
What is the force acting perpendicular to a plane called?
RRB Group-D
15/10/2018 / Shift III
2018
✓ Answer:AUpthrust
Source key: A. The general term is thrust or normal force, not necessarily upthrust. Pressure is normal force per unit area. The source's unusual option B is retained.
42
Which is not based on Archimedes' principle?
RRB NTPC (Stage-I)
06/04/2021 / Shift I
2021
✓ Answer:BDesign of aeroplane wings
Lactometers, hydrometers and floating vessels rely on buoyancy. Aeroplane wings generate aerodynamic lift through airflow and pressure differences.
43
Which is not based on Archimedes' principle?
RRB Group-D
03/10/2018 / Shift II
2018
✓ Answer:DOdometer
An odometer measures distance travelled. The other devices use buoyancy.
44
Which scientist is credited with the buoyancy principle explaining why ships float?
RRB ALP & Technician; RRB NTPC (Stage-I)
13/08/2018 / Shift I; 30/04/2016 / Shift III
2018; 2016
✓ Answer:CArchimedes
Archimedes' principle states that buoyant force equals the weight of displaced fluid.
45
The buoyant force exerted by water on an object is:
RRB Group-D
05/10/2018 / Shift I
2018
✓ Answer:CEqual to the weight of water displaced by the object
By Archimedes' principle, buoyancy equals displaced water's weight.
46
Which factors determine the buoyant force on an object in a fluid?
RRB Group-D
16/10/2018 / Shift II
2018
✓ Answer:CFluid density and the object's submerged volume
F_b = ρ_fluid g V_displaced. At a fixed g, it depends on fluid density and displaced volume.
47
What does the magnitude of buoyant force depend on?
RRB Group-D
03/10/2018 / Shift I
2018
✓ Answer:BDensity
Source key: B, referring to fluid density. More completely, F_b = ρgV, so displaced volume also matters; the question is ambiguous because option D is also a relevant factor.
48
Which statement is incorrect?
RRB Group-D
02/11/2018 / Shift II
2018
✓ Answer:CAn object floats if buoyancy is less than its weight
If buoyancy is less than weight and no other vertical force acts, the net force is downward. At floating equilibrium, buoyancy equals weight.
49
Buoyant force depends on the density and _____ of the liquid displaced.
RRB JE
31/05/2019 / Shift III
2019
✓ Answer:BVolume
Buoyant force is ρgV, where V is the displaced liquid volume.
50
The centre of buoyancy always:
RRB JE
14/12/2014 / Yellow Paper
2014
✓ Answer:BCoincides with the centroid of the displaced fluid volume
For a uniform-density fluid, buoyancy acts through the centroid of the displaced volume.
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