McqsFactory McqsFactory.com is the devoted website for multiple choice questions answers in Pakistan. McqsFactory has been specially designed to cover this paper for various such examinations. The material of McqsFactory has been collected after going through different examination papers.
A. Semi-conductor
B. Insulator
C. Conductor
D. Superconductor
Answer
A. Semi-conductor
Submitted by: Toheed Ahmed
The speed of sound is _________?
A. 300 meter per second
B. 315 meter per second
C. 340 meter per second
D. 362 meter per second
Answer
C. 340 meter per second
Submitted by: Toheed Ahmed
For sending sound waves at large distance, which waves are used?
A. Infrared waves
B. Radio waves
C. Light waves
D. X-waves
Answer
B. Radio waves
Submitted by: Toheed Ahmed
The carrier waves used for the radio transmission have frequency upto
A. 15 KHz
B. 30 KHz
C. 150 KHz
D. 90 KHz
Answer
B. 30 KHz
Submitted by: Toheed Ahmed
Video camera is used to convert ___________?
A. Heat into x-rays
B. Sound into electrical signals
C. Electrical signals into pictures
D. Picture into electrical signals
Answer
D. Picture into electrical signals
Submitted by: Toheed Ahmed
Recording of brain waves from outer surface of head is called
A. E.C.G.
B. C.T. scan
C. E.E.G
D. MRI
Answer
C. E.E.G
Submitted by: Toheed Ahmed
Ball bearings are used in cycles. scooters, etc. to
A. Reduce the friction between the wheel and the axle
B. Increase the friction between the wheel and
C. Reduce the friction between ground and the wheel
D. None of these
Answer
A. Reduce the friction between the wheel and the axle
Submitted by: Toheed Ahmed
Steel is more elastic than rubber because
A. Ratio of stress to strain is more
B. It is a metal
C. Ratio of stress to strain is less
D. Its density is high
Answer
A. Ratio of stress to strain is more
Submitted by: Toheed Ahmed
What does make the blood look red?
A. Red corpuscles
B. Haemoglobin
C. Plasma
D. Certain secretions
Answer
B. Haemoglobin
Submitted by: Toheed Ahmed
In railway tracks, a small gap is left between the rails
A. To save the cost of metal
B. To allow for the expansion during heat
C. To permit the shrinkage of metal
D. None of the above
Answer
B. To allow for the expansion during heat
Submitted by: Toheed Ahmed