(A) To avoid electrical shokes
(B) To regulate the flow of current
(C) To break the circut in case of overloading or short circuting
(D) None of these
Tag: General Knowledge Mcqs with Answers
South pole is located in the continet of?
(A) Africa
(B) Asia
(C) Antarkatka
(D) Austrailia
A transformer is a device for?
(A) Stepping up (or down) dc voltage
(B) Generating electricity
(C) Stepping up (or down) ac voltage
(D) Converting ac into dc
A device used for measuring the deapth of sea is called?
(A)
(B)
(C)
(D)
Bats can fly in the dark because?
(A) They have a better vision in the dark
(B) The pupiles of their eyes are very big
(C) They are guided by ultrasonic waves produced by them
(D) Any bird can do so
Echoes are produced due to?
(A) Reflection of sound
(B) Refrection of sound
(C) Diffraction of sound
(D) Polarization of sound
Thunder is heard much after a flash of lighting is seen because?
(A) Thunder is produced much later
(B) Clouds abstract sound waves
(C) Light can travel through vacume but sound cannot
(D) Light travel much faster then sound
The speed of sound will be highest in?
(A) Dry Air at 0 degree C
(B) Dry Air at 30 degree C
(C) Humid Air at 0 degree C
(D) Humid Air at 30 degree C