MEDIUM
Defence
IMPORTANT
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If camera A has f 4.5 lens and camera B has f 2.8 lens, and diameters of both the lenses are equal, then:

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Important Questions on Practice Test Paper

EASY
Defence
IMPORTANT
CAPF Assistant Commandants>Chapter 8 - Practice Test Paper>Exercise 5>Q 39
Which of the following region has maximum biodiversity?
MEDIUM
Defence
IMPORTANT
CAPF Assistant Commandants>Chapter 8 - Practice Test Paper>Exercise 5>Q 40

Under Kigali, Amendment to Montreal Protocol India declared phasing out of HFC-23, a greenhouse gas. Consider the following statements regarding HFC-23.

1   HFC-23 gas is used in industrial refrigerators.

2   HFC-23 has 14800 times more global warming potential as compared to carbon dioxide.

3   HFC-23 is also known as trifluoromethane.

Which among the above statements is/are incorrect?

EASY
Defence
IMPORTANT
CAPF Assistant Commandants>Chapter 8 - Practice Test Paper>Exercise 5>Q 41
If there were no atmosphere, what would be the colour of sky?
EASY
Defence
IMPORTANT
CAPF Assistant Commandants>Chapter 8 - Practice Test Paper>Exercise 5>Q 42
On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:
EASY
Defence
IMPORTANT
CAPF Assistant Commandants>Chapter 8 - Practice Test Paper>Exercise 5>Q 43
Delhi radio station broadcasts at a frequency of 819 kHz. What is the wavelength of the radio waves?
EASY
Defence
IMPORTANT
CAPF Assistant Commandants>Chapter 8 - Practice Test Paper>Exercise 5>Q 44
The tail of a comet always points away from the sun due to:
EASY
Defence
IMPORTANT
CAPF Assistant Commandants>Chapter 8 - Practice Test Paper>Exercise 5>Q 45
In hospitals, the oxygen tubes for respiration contain oxygen and _____.
MEDIUM
Defence
IMPORTANT
CAPF Assistant Commandants>Chapter 8 - Practice Test Paper>Exercise 5>Q 46
Diesel oil is preferred for heavy motor vehicles because of: