1
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following statements about X-rays is not true?
A
They have wavelengths of about 1 Å.
B
These can be generated by bombarding a metal target by high energy electrons.
C
Due to their wavelengths being shorter, these can be used for radar systems.
D
These are also used for the treatment of certain forms of cancer.
2
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Mica is mainly used in:
A
food and beverage industry.
B
iron and steel industry.
C
aluminium industry.
D
electrical and electronic industries.
3
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Organisms capable of using CO2 as principal carbon source are called:
A
Autotrophs
B
Heterotrophs
C
Parasites
D
Decomposers
4
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
When yeast cells are O2 starved, fermentation serves as the source of energy. This results in the production of:
A
ATP + CO2 + Ethanol
B
ATP + O2 + Pyruvate
C
ATP + CO2 + Lactic acid
D
ATP + O2 + Acetaldehyde
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