Which of the following is not a non-conventional source of energy?
(A) Solar energy
(B) Natural gas
(C) Wind energy
(D) Tidal energy
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.
What is the unit of Lumen?
(A) Light intensity
(B) Flame flux
(C) Both A and B
(D) None of these
The SI unit of luminous flux is the lumen (lm). One lumen is defined as the luminous flux of light produced by a light source that emits 1 cd of luminous intensity over a solid angle of 1 sr. In other systems of units, luminous flux may have units of power.
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.
A color blind woman marries a normal man, her children will be-
(A) Common daughter and common son
(B) Son and daughter will be color blind
(C) Color blind daughter and normal son
(D) Carrier daughter and color blind son
When a colorblind woman marries a man with normal eyesight, her daughters become carriers for the condition, and all sons become colorblind.
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.
Which one of the following is the correct taxonomic hierarchy?
(A) Jagat (Kingdom) – Sangha – Gana – Vansh – Kula – Varga – Jati
(B) Jagat – Gana – Varga – Sandha – Kul – Vansh – Jati
(C) Jagat – Varga – Gana – Sangha – Kul – Jati – Vansh
(D) Jagat – Sangha – Varga – Gana – Kul – Vansh – Jati
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.
Solder wire is made?
(A) Land and tin
(B) Zinc and copper
(C) copper and lead
(D) None of these
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.
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