General Science Mcqs for PPSC, FPSC, NTS

It is possible to recognize a person in the dark by simply hearing his unique voice . Is it because of the_______?

A. pitch
B. Frequency
C. Time period
D. Quality
E. None of these

When a ray of sunlight enters a dark room , its straight path becomes visible because of dust particles hanging in the air. It is because light is _________?

A. Visible
B. Transparent
C. Invisible
D. opaque
E. None of these

A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be ?

A. 6 feet
B. 12 feet
C. 4 feet
D. 3 feet
E. None of these

A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be ?

A. 6 feet
B. 12 feet
C. 4 feet
D. 3 feet
E. None of these

Magnifying power of a simple microscope be increased by ?

A. increasing focal length of the lens
B. Decreasing focal length of the lens
C. Lens of large aperture
D. lens of short aperture
E. None of these

A nuclear reactor is a device used to carry out a controlled nuclear reaction whereas a GM counter is a device used to detect?

A. Current
B. Voltage
C. Nuclear Radiation
D. power
E. None of these

A body can escape the gravitational pull of the earth if it is thrown up with a velocity of?

A. 25 miles per sec
B. 60 miles per sec
C. 7 miles per sec
D. 10 miles per sec
E. None of these

Night vision is possible with the help of ___________?

A. Red light
B. Violet light
C. Infrared Rays
D. Ultraviolet Light
E. None of these

Myopia is a defect of Human eye. Can it be corrected by using a lens called?

A. Convex lens
B. Concave lens
C. Cylindrical lens
D. Plano convex lens
E. None of these

The instrument which I specially designed for recording earthquake waves is called seismograph which measures earthquake waves on a ____________

A. Diatonic scale
B. Fahrenheit Scale
C. Richter scale
D. Celsius Scale
E. None of these

In humans , most nutrient molecules are absorbed by the 

A. Small intestine
B. Stomach
C. Liver
D. Large intestine
E. None of these