Showing 321–340 of 2717

Q321.Deficiency of Vitamin A creates ______ in the human body.

Medium
A Hair fall
B Rickets
C Night blindness
D None of these
Human Body & Health CSS 2022

Correct Answer: C

Correct Answer: Night blindness.

Q322.The waves which are used by the TV remote control are:

Medium
A Infrared waves
B Radio waves
C TV waves
D None of these
Basic Science CSS 2022

Correct Answer: A

Correct Answer: Infrared waves.

Q323.Which of the following gases is used in the refrigerator for cooling?

Medium
A Methane
B Ammonia
C Nitrogen
D None of these
Earth & Atmosphere CSS 2022

Correct Answer: B

Correct Answer: Ammonia.

Q324.Which of the planets moves fastest around the Sun?

Medium
A Venus
B Mercury
C Jupiter
D None of these
Space & Astronomy CSS 2022

Correct Answer: B

Correct Answer: Mercury.

Q325.Which instrument is used to measure the oxygen level of the blood?

Medium
A Thermometer
B Oximeter
C Spirometer
D None of these
Human Body & Health CSS 2022

Correct Answer: B

Correct Answer: Oximeter.

Q326.Which type of vitamin is provided to the human body through the Sun?

Medium
A Vitamin B12
B Vitamin A
C Vitamin D
D None of these
Human Body & Health CSS 2022

Correct Answer: C

Correct Answer: Vitamin D.

Q327.Through which of the following countries does the Equator pass?

Medium
A Pakistan
B Malaysia
C Kenya
D None of these
General MCQs CSS 2022

Correct Answer: C

Correct Answer: Kenya.

Q328.Which of the following lenses is used in the microscope?

Medium
A Convex lens
B Concave lens
C Curved lens
D None of these
General MCQs CSS 2022

Correct Answer: A

Correct Answer: Convex lens.

Q329.The instrument used to measure rainfall is:

Medium
A Barometer
B Hydrometer
C Nanometer
D None of these
General MCQs CSS 2022

Correct Answer: D

Correct Answer: None of these.

Q330.Which blood group is rarest in the human body?

Medium
A O
B AB+
C AB-
D None of these
Human Body & Health CSS 2022

Correct Answer: C

Correct Answer: AB-.

Q331.Which light is more important for photosynthesis?

Medium
A Violet light
B Red light
C Green light
D None of these
Basic Science CSS 2022

Correct Answer: B

Correct Answer: Red light.

Q332.The instrument which is used to measure blood pressure is called:

Medium
A Spirometer
B Barometer
C Sphygmomanometer
D None of these
Human Body & Health CSS 2022

Correct Answer: C

Correct Answer: Sphygmomanometer.

Q333.The world is divided into how many time zones?

Medium
A 12
B 18
C 24
D None of these
General MCQs CSS 2022

Correct Answer: C

Correct Answer: 24.

Q334.Which of the following is the warmest ocean?

Medium
A Indian Ocean
B Pacific Ocean
C Atlantic Ocean
D None of these
Earth & Atmosphere CSS 2022

Correct Answer: A

Correct Answer: Indian Ocean.

Q335.Vitamin B exists in:

Medium
A Fruit and Vegetables
B Seeds
C Sea-food
D None of these
Human Body & Health CSS 2022

Correct Answer: A

Correct Answer: Fruit and Vegetables.

Q336.The light-sensitive drum of a photostat photocopy machine is made of or coated with:

Medium
A Silicon
B Selenium
C Germanium
D Copper
Basic Science FPSC 2026

Correct Answer: B

Selenium is a photoconductor that conducts electricity only when exposed to light (FPSC 2026).

Q337.Which part of the human eye is light-sensitive and acts as the film of a camera?

Medium
A Cornea
B Iris
C Retina
D Lens
Human Body & Health FPSC 2026

Correct Answer: C

The retina detects images and transmits neural impulses to the brain (FPSC 2026).

Q338.A light-year is a unit used to measure:

Medium
A Time
B Light intensity
C Astronomical distance
D Speed
Space & Astronomy FPSC 2026

Correct Answer: C

The distance light travels in one Julian year (approx 9.46 trillion km) (FPSC 2026).

Q339.An atom consists of three primary atomic particles. These are:

Medium
A Protons, Neutrons, Electrons
B Protons, Quarks, Gluons
C Positrons, Muons, Neutrinos
D None of these
Physical Science FPSC 2026

Correct Answer: A

Protons and Neutrons lie in the nucleus, Electrons orbit outside (FPSC 2026).

Q340.In an inelastic collision, which of the following is NOT conserved?

Medium
A Total Momentum
B Kinetic Energy
C Total Mass
D None of these
Basic Science FPSC 2026

Correct Answer: B

Kinetic energy is lost to internal friction, heat, or sound in inelastic collisions (FPSC 2026).