Verified past-paper data not yet uploaded
No verified paper has been uploaded for AJKPSC-PMS Current Affairs Set-10 yet.
The MCQs below are drawn from the Current Affairs subject category.
Showing 65001–65010
of 65200 MCQs
Page 6501 / 6520
65001
If A is the area and Δy is the distance moved by the piston, then AΔy will represent:
A. Change in pressure
B. None of them
C. Density
D. Change in volume
Discuss
Save
Correct Option
Explanation
The block's explanatory answer states C; area × distance has units m^3, representing a change in volume.
65002
The water droplets in free fall are spherical due to
A. inter-molecular attraction
B. viscosity
C. surface tension
D. gravity
Discuss
Save
Correct Option
Explanation
Surface tension acts to minimize surface area, making drops adopt a spherical shape in free fall.
65003
Given that P = 10^5 N/m^2, area of the piston = 0.1 m^2 and distance moved by the piston = 10^-1 m, then the work done by the gas is:
A. 10^a J
B. 10 J
C. 1 J
D. 10^1 J
Discuss
Save
Correct Option
Explanation
The block's explanatory answer shows A; work = P·A·Δy = 10^5 × 0.1 × 10^-1 = 1 J.
65004
Work done in lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
Discuss
Save
Correct Option
Explanation
The explanatory answer in the block explicitly states option C; force upward while displacement downward gives work = -Fd, i.e., negative.
65005
100. In a capillary tube of which the lower end dips in a liquid, the liquid rises to a height of 10 cm. If a capillary of the same bore is taken, whose length is 5 cm and dipped in liquid, then
A. the liquid will rise up to the top and slowly ooze out of it
B. the liquid will not rise in the tube at all
C. the liquid will rise to the top and will stay there
D. a fountain of liquid will be obtained
Discuss
Save
Correct Option
Explanation
If the equilibrium capillary rise exceeds the tube length (5 cm < 10 cm), the liquid reaches the top and will overflow or slowly ooze out.
65006
The work done by a force keeping an object in circular motion with constant speed is:
A. Zero J
B. 0.01 J
C. 1 J
D. 0.1 J
Discuss
Save
Correct Option
Explanation
The block's explanatory answer indicates option A; centripetal force is perpendicular to instantaneous displacement so work = 0.
65007
The normal human body temperature in Fahrenheit scale is
A. 32 ºF
B. 212 ºF
C. 40 °F
D. 98.4 °F
Discuss
Save
Correct Option
Explanation
Normal human body temperature is approximately 98.4–98.6 °F, so 98.4 °F is the best choice given.
65008
Poise is the unit of:
A. Viscosity
B. Density
C. Quantity
D. Velocity
Discuss
Save
Correct Option
Explanation
The poise is a unit of dynamic viscosity in the CGS system.
65009
The energy of the molecular motion appears in the form of:
A. Temperature
B. Potential energy
C. Heat
D. Friction
Discuss
Save
Correct Option
Explanation
The kinetic energy of molecular motion manifests macroscopically as heat (internal thermal energy).
65010
The sum of all forms of molecular energies of a substance is termed as its
A. Intermolecular energy
B. Internal energy
C. Intramolecular energy
D. Bond energy
Discuss
Save
Correct Option
Explanation
Internal energy is the total of all microscopic kinetic and potential energies (molecular energies) of a substance.
