Officerswiki is a free education & learning platform for all students and working professionals, where they can practice multiple choice questions & answers (MCQs). These all MCQs on Officerswiki are FreeMcqs which are helpful in all types of exams such as PPSC, FPSC, CSS, NTS, PMS and UPSC.
What is the name of the gas used in an air conditioner?
A. Ammonia
B. Nitrous oxide
C. Freon
D. CO2
Internal friction of fluid is called_________?
A. Viscosity
B. Surface tension
C. Resistance
D. Cohesive force
The process whereby energy is dissipated from the oscillating system is called__________?
A. Oscillation
B. Damping
C. Resonance
D. None of these
The movement of any solvent across a semipermeable membrane is called__________?
A. Osmosis
B. Cataphoresis
C. Electrolysis
D. Electrophoresis
Which of the following noble gases is not present in the atmosphere?
A. Argon
B. Helium
C. Radon
D. Xenon
Which of the following noble gases is abundant in air
A. Neon
B. Helium
C. Argon
D. Methane
Which law states that “equal volumes of all gases, at the same temperature and pressure, have the same number of molecules?
A. Boyle’s law
B. Charles’ law
C. Gay-Lussac’s law
D. Avogadro’s law
Which of the following waves have the smallest velocity in vacuum
A. Ultraviolet
B. Sound
C. Infra-Red
D. Micro
By which process does the smell of cooking spread to all the rooms in a house?
A. Distillation
B. Diffusion
C. Decomposition
D. Displacement
By which process does the smell of cooking spread to all the rooms in a house?,What is the name of the gas used in an air conditioner?,Which of the following noble gases is abundant in air
