1
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

The human eye is like a camera that has a lens with :

A

fixed focal length and fixed aperture size.

B

variable focal length and fixed aperture size.

C

fixed focal length and variable aperture size.

D

variable focal length and variable aperture size.

2
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

The relative atomic mass of boron (which exists in two isotopic forms 10B and 11B) is 10.81. What will be the abundance of 10B and 11B, respectively (consider a sample of 100 atoms)?

A

19% and 81%

B

81% and 19%

C

38% and 62%

D

62% and 38%

3
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Which among the following are essential constituents of Portland cement?

A

Sand, lime, clay

B

Silica, alumina, lime

C

Silica, lime, graphite powder

D

Sand, graphene, clay

4
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Litmus, a well-known acid-base indicator, is derived from :

A

Fungi

B

Lichens

C

Bacteria

D

Termite

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