Crude Birth Rate, Crude Death Rate And Growth Rate

Birth Rate, Death Rate And Growth Rate

Q. 1

In a community of 5000 people, the crude birth rate is 30 per 1000 people. The number of pregnant females is?

 A 150
 B 165
 C 175
 D 200
Q. 1

In a community of 5000 people, the crude birth rate is 30 per 1000 people. The number of pregnant females is?

 A 150
 B 165
 C 175
 D 200
Ans. A

Explanation:

150 REF: Park 20th edition page 418

Crude birth rate = (Number of liver births in a year/ Estimated mid year population) x 1000 

30 = (Live births/ 5000) x 1000

Live births = 150 (indirectly indication the number of pregnancy)


Q. 2 If annual growth rate of population is 1.2%, the population is likely to get doubled in:
 A 18—20 years
 B 20—23years
 C 28—35 years
 D 47 — 50 years
Q. 2 If annual growth rate of population is 1.2%, the population is likely to get doubled in:
 A 18—20 years
 B 20—23years
 C 28—35 years
 D 47 — 50 years
Ans. D

Explanation:

 

Rate

Annual GR

%

 

Yrs required

Stationary

No growth

Slow growth

0.5

>139

Moderate

growth

 

0.5-1

 

13970

 

Rapid growth

1-1.5

70-47

Very rapid growth

1.5-2

47-35

Explosive growth

2-2.5

35-28

Explosive growth

3-3.5

23-20

Explosive growth

3.5-4

20-18


Q. 3

All the statements regarding crude birth rate are true, except:

 A

It is an Indicator of fertility

 B

It excludes the still births

 C

It is unaffected by age-distribution

 D

It is a better measure of fertility than the general fertility rate

Q. 3

All the statements regarding crude birth rate are true, except:

 A

It is an Indicator of fertility

 B

It excludes the still births

 C

It is unaffected by age-distribution

 D

It is a better measure of fertility than the general fertility rate

Ans. D

Explanation:

General fertility rate is a better measure of fertility than the crude birth rate, because the denominator is restricted to the number of woman in childbearing age rather than the whole population.

 
Ref: Park’s Textbook of Preventive and Social Medicine By K. Park, 19th Edition, Page 386 and 20th Edition, Pages 418-19; The Economics of Sustainable Development By Sisay Asefa, Page 104; Epidemiology for Public Health Practice By Robert H. Friis, 4th Edition, Pages 108-9

Quiz In Between


Q. 4

In crude death rate the population is taken as on 

 A

1st March

 B

1st July

 C

1st April

 D

15th August

Q. 4

In crude death rate the population is taken as on 

 A

1st March

 B

1st July

 C

1st April

 D

15th August

Ans. B

Explanation:

Ans. is ‘b’ i.e., 1st July

o A rate comprises the following elements ‑

i) Numerator, ii) Denominator, iii) Time specification,  iv) Multiplier

Numerator —> Refers to the number of times an event (e.g. sickness, birth, death) has occured in a population, during a specified time period. Numerator is a component of the denominator in calculating a rate, but not in a ratio. Denominator —> Denominator may be :‑

i) Related to population

           Mid year population –> population estimated on first of July of an year

           Population at risk

           Person – time

           Person distance

ii) Related to total events

As in case fatality rate, denominator is total number of cases rather than total population.


Q. 5

Crude death rate is an indicator that shows relationship between –

 A

Population & total mortality

 B

Population & proportional mortality

 C

Population & age-specific mortality

 D

None of the above

Q. 5

Crude death rate is an indicator that shows relationship between –

 A

Population & total mortality

 B

Population & proportional mortality

 C

Population & age-specific mortality

 D

None of the above

Ans. A

Explanation:

Ans. is ‘a’ i.e., Population & total mortality 


Q. 6

According to 2001 census, what was the growth rate of India:      

September 2007

 A

1.03%

 B

1.33%

 C

1.63%

 D

1.93%

Q. 6

According to 2001 census, what was the growth rate of India:      

September 2007

 A

1.03%

 B

1.33%

 C

1.63%

 D

1.93%

Ans. D

Explanation:

Ans. D: 1.93%

Average annual exponential growth rate is 1.93% whereas decadal growth rate is 21.34% as per 2001 census.

Quiz In Between


Q. 7

Denominator in specific death rate due to coronary artery disease

 A

1000 live birth

 B

Mid year population

 C

Total number of deaths in a community

 D

Total number of case population in community

Q. 7

Denominator in specific death rate due to coronary artery disease

 A

1000 live birth

 B

Mid year population

 C

Total number of deaths in a community

 D

Total number of case population in community

Ans. B

Explanation:

Ans. is ‘b’ i.e., Mid year population

Crude death rate

  • It is the simplest measure of mortality.
  • It is defined as “the number of death (from all causes) per 1000 estimated mid-year population in one year, in a given place”.

Q. 8

If annual growth rate of a population is 1.5-2%, what number ofyears will be required to double the population?

 A

70-47 years

 B

47-35 years

 C

35-28 years

 D

28-23

Q. 8

If annual growth rate of a population is 1.5-2%, what number ofyears will be required to double the population?

 A

70-47 years

 B

47-35 years

 C

35-28 years

 D

28-23

Ans. B

Explanation:

Ans. is ‘b’ i.e. 47-35 years

Quiz In Between


Q. 9

Crude birth rate is the simplest measure of fertility because the denominator is ‑

 A

Total population

 B

Mid-year population

 C

Pre-term births

 D

Live birth

Q. 9

Crude birth rate is the simplest measure of fertility because the denominator is ‑

 A

Total population

 B

Mid-year population

 C

Pre-term births

 D

Live birth

Ans. B

Explanation:

Ans. is ‘b’ i.e., Mid-year population 


Q. 10

Population explosion (explosive growth) is defined as the growth rate ‑

 A

0.5-1.0

 B

1-1.5

 C

1.5-2

 D

> 2

Q. 10

Population explosion (explosive growth) is defined as the growth rate ‑

 A

0.5-1.0

 B

1-1.5

 C

1.5-2

 D

> 2

Ans. D

Explanation:

Ans. is `d’ i.e., > 2 

Rate/Phase

Stationary population

Slow growth

Moderate growth

Rapid growth

Very Raped growth

Explosive growth

Annual rate of growth in %

No growth <5

0.5 to 0.1

1.0 to 1.5

1.5 to 2.0

> 2.0

Quiz In Between



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