Science Quiz - Question & Answers Set - 9

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Home Practice Tests Science Practice Tests Science Quiz - Question & Answers Set - 9

15 Questions

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Science Quiz - Question & Answers Set - 9

Question 1 :
Consider the following statements :
- 1. Hepatitis B is several times more infectious than HIV/AIDS
- 2. Hepatitis B can cause liver cancer.
Which of the statements given above is /are correct ?
A1 only
B2 only
CBoth 1 and 2

DNeither 1 nor 2

Question 2 :
Excessive release of the pollutant carbon monoxide (CO) into the air may produce a condition in which oxygen supply in the human body decreases. What causes this condition ?
AWhen inhaled into the human body, CO is converted into CO2
BThe inhaled CO has much higher affinity for haemoglobin as compared to oxygen

CThe inhaled CO destroys- the chemical structure of haemoglobin
D The inhaled CO adversely affects the respiratory centre in the brain

Question 3 :
Consider the following statements :
- 1. Every individual in the population is equally susceptible host for Swine Flu.
- 2. Antibiotics have no role in the primary treatment of Swine Flu
- 3. To prevent the future spread of Swine Flu in the epidemic area, the swine (pigs) must all be culled.
Which of the statements given above is/are correct ?
A1 and 2 only

Question 4 :
With regard to the transmission of the Human Immuno deficiency Virus, which one of the following statements is not correct ?
AThe chances of transmission from female to male are twice as likely as from male to female

BThe chances of transmission are more if a person suffers from other sexually transmitted infections
CAn infected mother can transmit the infection to her baby during pregnancy, at childbirth and by breast feeding
DThe risk of contracting infection from transfusion of infected blood is much higher than an exposure to contaminated needle

Question 5 :
Consider the following which can be found in the ambient atmosphere:
- 1. Soot
- 2. Sulphur hexafluoride
- 3. Water vapour
Which of the above contribute to the warming up of the atmosphere ?
A1 and 2 only
B3 only
C2 and 3 only
D 1,2 and 3

Question 6 :
Which of the following have the same dimensions?
Aangular momentum and linear momentum
Bwork and power
Cwork and torque

Dtorque and pressure

Question 7 :
'Parallactic second' is the unit of
ATime
BDistance

CVolume
DSpeed

Question 8 :
The Only Physical quantity whose unit does not follow a metric system is
ADistance
BMass
CCurrent
DTime

Question 9 :
A moving body is covering the distance directly propotional to the square of the time. The accelaration of the body is:
Aincreasing
Bdecreasing
Czero
Dconstant

Question 10 :
The incorrect statement about distance is:
Adistance is the actual length covered along the path
Bdistance is a scalar quantity
Cdistance can be negative

Ddistance cannot be zero for a moving body

Question 11 :
The incorrect statement about displacement is:
Adisplacement is the difference between the final and initial positions of the particle
Bdisplacement is a vector quantity
Cdisplacement can be negative,zero or positive
Dthe magnitude of displacement is always equal equal to distance

Question 12 :
Identify the correct statement about the centre of mass:
AAt the centre of mass, the entire mass of the body is concentrated

BThe centre of mass of a body may lie inside or outside the body
CThe centre of mass always lies on the axis of symmetry if it exists
DThe centre of mass of a system may coincide with one of the particles of the system

Question 13 :
The escape velocity for earth is:
A11.2 km/s

B11.2km/h
C8 km/s
D8 km/h

Question 14 :
If water is heated from 0 °c to 10 °c, its volume:
Aincreases
Bdecreases
Cfirst decreases, then increases

Dfirst increases, then decreases

Question 15 :
When a cube of ice, floating on a water in a beaker melts, the level of water in the beaker:
Arises
Bfalls
Crises at first and then falls
Dremains unchanged

Model Question Papers