Parsec is the unit?
(A) Distance
(B) Time
(C) Brightness of light
(D) Magnetic force
Parsec or parallactic second or is a unit of distance. It is defined as the distance at which one AU (astronomical unit) subtends an angle of one arc second, and is equal to 3.26 light years. Or, it is the unit of length which is used to measure the large distances of celestial bodies outside the solar system.
Which process is responsible for the glow that appears in bubbles that emerge from water?
(A) due to reflection of light
(B) due to refraction of light
(C) due to total internal reflection of light
(D) due to scattering of light
Due to total internal reflection light gets trapped inside the bubble, making it shine.
The blood of which of the following animals is similar to that of humans?
(A) Chimpanzee
(B) Rhesus monkey
(C) Gorilla
(D) Baboon
The following animals have blood groups that are similar to humans: Chimpanzees. Gorillas. Orangutans.
Which chromosome determines the male sex in humans?
(A) X-chromosome
(B) Y-chromosome
(C) W-chromosome
(D) Z-chromosome
Each person normally has one pair of sex chromosomes in each cell. The Y chromosome is present in males, who have one X and one Y chromosome, while females have two X chromosomes. Identifying genes on each chromosome is an active area of genetic research.
The number of ossicles in the ear of mammals is
(A) 2
(B) 3
(C) 4
(D) 5
The mammalian middle ear contains three ossicles, which move the vibrations of the eardrum into waves in the liquid and membrane of the inward ear. There are three ossicles in every ear : Malleus, Incus, Stapes. As we have a couple of ears, so altogether there are 6 ossicles, or 3 sets of ossicles.
Tungsten resistance to temperature rise?
(A) decreases
(B) increases
(C) there is no change
(D) All these
At high temperatures, the tungsten filament gets hot and atoms in the filament vibrate more. The electrons in the current now collide more with the atoms & more energy is needed to push the current through the filament. Hence, the resistance of tungsten increases with temperature.
Capacitors are fitted to increase the power coefficient.
(A) parallel to the supply
(B) By putting resistance to supply
(C) In the supply chain
(D) None of these
In an AC circuit, magnetic reversal due to phase difference between current and voltage occurs 50 or 60 times per second. A capacitor helps to improve the power factor by relieving the supply line of the reactive power.
Most commonly used motor in motor generator sets of high capacity?
(A) Cage Model Induction Motor
(B) synchronous motor
(C) DC Compounder Motor
(D) None of the above
The tendency nowadays is to use synduction or synchronous motors. The synduction motor resembles an induction motor but runs at synchronous speed.
Capacity when connecting capacitors to series?
(A) neither increases nor decreases
(B) increases
(C) decreases
(D) None of the above
A capacitor stores energy in the form of an electrostatic field between its plates. Increasing the size of the plates increases the capacitance because there is more room for the electrons to escape.
Which government has launched 'Mo Sarkar' campaign?
(A) West Bengal
(B) Tripura
(C) Nagaland
(D) Odisha
Odisha Chief Minister Naveen Patnaik has launched the 'Mo Sarkar' program. This program promotes Gandhian thinking. Also, encourages people to raise their voice for their rights. 'Mo Sarkar' aims to improve governance by collecting feedback on the behavior and professionalism displayed by government officials. This program has been started in 21 district headquarters, hospitals and medical colleges of Cuttack, Sambalpur and Berhampur.
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