1
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following statements about the speed of sound waves is not correct?
A
The speed of sound waves in steel is higher than that in water.
B
The speed of sound waves in air decreases with increase in temperature.
C
The speed of sound waves in air increases with increase in temperature.
D
The speed of sound waves in water is higher than that in air. 
2
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following metals is most commonly used for making filament of incandescent electric bulbs?
A
Aluminium
B
Silver
C
Copper
D
Tungsten
3
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
A bullet of mass 10 g is horizontally fired with velocity 300 m s-1 from a pistol of mass 1 kg. What is the recoil velocity of the pistol?
A
0.3 m s-1
B
m s-1
C
-3 m s-1
D
-0.3 m s-1
4
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
A microphone converts
A
electrical signals to sound waves
B
sound waves to electrical signals
C
microwaves to sound waves
D
sound waves to microwaves
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12