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Learn AIR FORCE MCQs with answers [Page 1 of Department 69]

R

Ram Sharma • 188.81K Points
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3) When two ice cubes are pressed together, they join to form one cube. Which of the following one of the following helps to hold them together 

(A) Vander waals forces
(B) Hydrogen bond formation
(C) Dipole interaction
(D) Covalent attraction
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 188.81K Points
Coach

4) A catalyst

(A) Increases the velocity of a reaction
(B) Starts a reaction
(C) Decreases the velocity of a reaction
(D) Alters the velocity of a reaction
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 188.81K Points
Coach

5) Which of the following one of the following is a major green house gas

(A) Carbon monoxide
(B) Freon
(C) Chloro fluorocarbon
(D) Carbon dioxide
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 188.81K Points
Coach

6) The device used for measuring the wavelength of X-rays is

(A) Mass Spectrometer
(B) Bragg Spectrometer
(C) G.M. Counter
(D) Cyclotron
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 188.81K Points
Coach

7) Which of the following type of glass is used for making glass reinforced plastic

(A) Pyrex glass
(B) Flint glass
(C) Fibre glass
(D) Quartz glass
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 188.81K Points
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8) The final image in a simple microscope is

(A) real, diminished & inverted
(B) virtual, magnified & erect
(C) real, magnified & erect
(D) virtual, diminished & erect
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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R

Ram Sharma • 188.81K Points
Coach

9) If a wire of resistance R is melted & recast to half of its length, then the new resistance of the wire will be

(A) R 4
(B) 2R
(C) R
(D) R 2
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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