Showing 1481–1500 of 2717

Q1481.SI unit of light is ____ ?

Easy
A watt
B Pascal
C Candela
D Joule
Measurements & Scientific Instruments PPSC

Correct Answer: C

SI unit of light is Candela. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Q1482.Sickle cell anemia is a ____?

Easy
A Genetic disorder
B virus disease
C bacterial disease
D diseases due to vitamin deficiency
Human Body & Health PPSC

Correct Answer: A

Sickle cell anemia is a Genetic disorder. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Q1483.Siemens is the unit of____?

Easy
A Electrical Conductance
B Magnetic Conductance
C Electrical Capacitance
D Magnetic Capacitance
Measurements & Scientific Instruments PPSC

Correct Answer: A

Siemens is the unit of Electrical Conductance. This value follows from the standard definition or accepted conversion used for the quantity.

Q1484.Silicon is an example of ____?

Easy
A No-conductor
B Semiconductor
C Super Conductor
D None of these
General MCQs PPSC

Correct Answer: B

Silicon is an example of Semiconductor. This description follows from the defining characteristics and established facts associated with the subject.

Q1485.Silver fish is the name of____?

Easy
A Insect
B Fish
C Bird
D Mammal
General MCQs PPSC

Correct Answer: A

Silver fish is the name of Insect. This is based on the organism’s established anatomy, behavior, or biological classification.

Q1486.Skin has ____ layers?

Easy
A One
B Two
C Three
D Four
General MCQs PPSC

Correct Answer: C

Skin has Three layers. This description follows from the defining characteristics and established facts associated with the subject.

Q1487.Skin is ____ thick?

Easy
A 2mm
B 2cm
C 3mm
D 3cm
General MCQs PPSC

Correct Answer: A

Skin is 2mm thick. This description follows from the defining characteristics and established facts associated with the subject.

Q1488.Sleeping sickness in the natives of Africa is caused by____?

Easy
A Trichomonas
B Giardia
C Leishmania
D Trypanosoma
General MCQs PPSC

Correct Answer: D

Sleeping sickness in the natives of Africa is caused by Trypanosoma. The named agent or condition produces the characteristic biological changes associated with the disease.

Q1489.Smallest animal is ____?

Easy
A Skunk
B Gorilla
C Tiger
D Cat
General MCQs PPSC

Correct Answer: A

Smallest animal is Skunk. This is based on the organism’s established anatomy, behavior, or biological classification.

Q1490.Smallpox was eradicated in 1970s. What was the ‘great pox’ which remains active?

Easy
A Bubonic plague
B Syphilis
C Measles
D
General MCQs PPSC

Correct Answer: B

Smallpox was eradicated in 1970s. What was the ‘great pox’ which remains active: Syphilis. This description follows from the defining characteristics and established facts associated with the subject.

Q1491.Smoke is an solution of ____?

Easy
A Solid in solid
B Solid in liquid
C Solid in gas
D Gas in gas
General MCQs PPSC

Correct Answer: C

Smoke is an solution of Solid in gas. This description follows from the defining characteristics and established facts associated with the subject.

Q1492.Soap and detergents remove the dirt from clothes due to____?

Easy
A Osmosis
B Capillary action
C Lowering of interfacial tension
D Diffusion
General MCQs PPSC

Correct Answer: C

Soap and detergents remove the dirt from clothes due to Lowering of interfacial tension. This description follows from the defining characteristics and established facts associated with the subject.

Q1493.Sodium Carbonate is commonly called ____?

Easy
A Plaster of Paris
B Washing Soda
C Common Salt
D None of these
General MCQs PPSC

Correct Answer: B

Sodium Carbonate is commonly called Washing Soda. The term is defined by the subject, process, or characteristic described in the question.

Q1494.Sodium carbonate is produced by____?

Easy
A haber process
B Amonia solvay process
C decons process
D lead chamber process
General MCQs PPSC

Correct Answer: B

Sodium carbonate is produced by Amonia solvay process. This description follows from the defining characteristics and established facts associated with the subject.

Q1495.Soil acidity is corrected by?

Easy
A Proper irrigation
B Adding sodium hydroxide
C Liming
D Application of fertilizers
Physical Science PPSC

Correct Answer: C

Soil acidity is corrected by: Liming. Its composition and chemical or physical behavior give it the stated classification or property.

Q1496.Solar wind is caused by the high temperature and pressure in the sun’s which atmosphere?

Easy
A Photosphere
B Chromosphere
C Corona
D A and B
Space & Astronomy PPSC

Correct Answer: C

Solar wind is caused by the high temperature and pressure in the sun’s which atmosphere: Corona. The named agent or condition produces the characteristic biological changes associated with the disease.

Q1497.Some objects from the Kuiper belt are classified as plutoids” and include?

Easy
A Pluto, Eris, and Ceres
B Pluto, Bris, and Teres
C Pluto, Eris, and Ceres
D Yeres, Teres, Ceres
General MCQs PPSC

Correct Answer: C

Some objects from the Kuiper belt are classified as plutoids” and include: Pluto, Eris, and Ceres. This description follows from the defining characteristics and established facts associated with the subject.

Q1498.Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally____?

Easy
A ionic substances
B metallic substances
C molecular solids
D covalent network solids
Physical Science PPSC

Correct Answer: B

Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally metallic substances. These substances are generallymetallic substances. The effect results from the movement of charge or the interaction of electric and magnetic fields.

Q1499.SONAR is based on the principle of____?

Easy
A Echo
B reverberation
C resonance
D None of these
General MCQs PPSC

Correct Answer: A

SONAR is based on the principle of Echo. This description follows from the defining characteristics and established facts associated with the subject.

Q1500.Sound of frequency below 20 Hz is:____?

Easy
A Audiosonic
B Infrasonic
C Ultrasonic
D Supersonic
General MCQs PPSC

Correct Answer: B

Sound of frequency below 20 Hz is: Infrasonic. This description follows from the defining characteristics and established facts associated with the subject.