Category: CSS General Science MCQs

The planet Mercury completes one rotation around the sun in:

(A) 88 days
(B) 365 days
(C) 98 days
(D) 60 days

Q. The planet Jupiter completes one rotation around the sun in:
(A) 10.86 years
(B) 11.86 years
(C) 12.86 years
(D) None of these

Q. The planet Uranus completes one rotation around the sun in:
(A) 26.5 years
(B) 27.2 years
(C) 28.5 years
(D) 29.5 years

Answers:
1. (A) 88 days
2. (B) 11.86 years
3. (D) 29.5 years

The instrument which is specially designed for recording earthquake wave is called seismograph which measures earthquake waves on a:

(A) Diatonic scale
(B) Fahrenheit scale
(C) Ritcher scale
(D) Celsius scale

Q. A device used for measuring wind speed and direction is called:
(A) Anemometer
(B) Hydrometer
(C) Ammeter
(D) None of these

Q. The instrument which is use to measure the current in a circuit is called:
(A) Anemometer
(B) Hydrometer
(C) Ammeter
(D) None of these

Answers:
1. (C) Ritcher scale
2. (A) Anemometer
3. (C) Ammeter

A body can escape the gravitational pull of the earth if it is thrown up with a velocity of:

(A) 25 miles/sec
(B) 60 miles/sec
(C) 7 miles/sec
(D) 10 miles/sec

Q. Escape velocity is the speed at which the sum of an object’s kinetic energy and its gravitational potential energy is equal to:
(A) zero
(B) each other
(C) it’s speed
(D) None of these

Q. The simplest way of deriving the formula for escape velocity is to use conservation of:
(A) Electric Power
(B) Energy
(C) Speed
(D) None of these

Answers:
1. (C) 7 miles/sec
2. (A) zero
3. (B) Energy

A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect:

(A) Current
(B) Voltage
(C) Nuclear Radiation
(D) Power

Q. Geiger-Müller (GM) tube is used for detection of ionizing radiation was named after:
(A) Hans Geiger, Walther Müller
(B) William Geiger, Walther Müller
(C) Robert Geiger, Walther Müller
(D) None of these

Q. A device used for the detection and measurement of all types of radiations is:
(A) Scintillation Counter
(B) Geiger-Müller Tube
(C) Gamma-ray detector
(D) None of these

Answers:
1. (C) Nucleus Radiation
2. (A) Hans Geiger, Walther Müller
3. (B) Geiger-Müller Tube

A very important practical application of properties of matter is hoeing or “godi” practiced by the farmers. This property of matter is called:

(A) Elasticity
(B) Stress
(C) Capillarity
(D) Strain

Q. The ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity is called:
(A) Capillarity
(B) Absorption
(C) Retarding force
(D) None of these

Q. The first recorded observation of capillary action was by:
(A) Robert Boyle
(B) Leonardo da Vinci
(C) Galileo
(D) None of these

Answers:
1. (C) Capillarity
2. (A) Capillarity
3. (B) Leonardo da Vinci