Communication satellites are used to -
(A) provide information of natural resources only
(B) transmit communication signal only
(C) receive communication signal only
(D) receive and redirect communication signal
The nuclear particle having no mass and no charge, but only spin is
(A) proton
(B) neutron
(C) meson
(D) electron
‘Farad’ is the unit of:
(A) Resistance
(B) Conductanc
(C) Capacitance
(D) Inductance
Which among the following is used to dilute oxygen in the gas cylinders used by divers?
(A) Krypton
(B) Argon
(C) Helium
(D) Neon
What is the principle of life jacket?
(A) It provide oxygen to the drowning person.
(B) It increase persons volume to help him float.
(C) It decreases persons volume to help him float.
(D) A persons can sit on it
Which one of the following does not form oxyacid?
(A) Sulphur
(B) Chlorine
(C) Nitrogen
(D) Fluorine
Which among the following is not an Enzyme?
(A) Trypsin
(B) Gastrin
(C) Pepsin
(D) Rennin
The release of which of the following into ponds and wells helps in controlling mosquitoes?
(A) Snail
(B) Crab
(C) Dogfish
(D) Gambusia fish
Which gas is present in biogas in large percentage?
(A) Moisture (H2O)
(B) Carbon dioxide (CO2)
(C) Methane (CH4)
(D) Hydrogen sulphide (H2S).
The ambient air is stable when the ambient lapse rate is
(A) Neutrally stable
(B) Hyper-adiabatic
(C) Sub-adiabatic
(D) Super-adiabatic
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