Environmental

Question 1

Floor space per person

Answer 1

50-100 ft per person

Question 2

Cubic space per person

Answer 2

Greater than 500

Question 3

Door and window

Answer 3

Minimum 40 %

Question 4

Overcrowding

Answer 4

More than two in one room
Floor space less than 70-90.sq.ft
9 years separate sex not married couples sleep in same room

Question 5

Total natural radiation

Answer 5

0.1 RAD per person per year

Question 6

max.permissible radiation

Answer 6

5 RAD per person per year
Pregnancy 0.5 RAD

Question 7

Soiling index

Answer 7

Air quality

Question 8

Best indicator of air pollutaion

Answer 8

SO2

Question 9

Green house effect Major contributor

Answer 9

Water vapour

Question 10

P4SR

Answer 10

Predicable 4 hour sweat rate

Question 11

Illumination minimum

Answer 11

15-20 foot candles

Question 12

Sound

Answer 12

Toleranble level
Upto 90 db
More than 100 db permanant loss.
Direct TM rapture
150-160 db

Question 13

Housing

Answer 13

Floor space 50-100 sq.ft per person
Cubic space minimum 500 cuft per person
Door and window 40 % of floor area
Height of plinths 2-3 feet from floor area
Day light factor minimum 1% in half of floor area

Question 14

PS4R

Answer 14

1-3 L for 4 hours comfortable
Max 4.5 l in 4 hours

Question 15

Strength of sewage measured by

Answer 15

BOD
COD
Suspended solids

Question 16

Strong sewage BOD

Answer 16

More than 300 ppm

Question 17

Weak sewage
BOD

Answer 17

less than 100 ppm

Question 18

Depth of water seal in RCA latrine

Answer 18

2 cm

Question 19

Septic tank retention period

Answer 19

Minimum 24 hours

Question 20

Kata thermometer

Answer 20

Low air velocity

Question 21

Anerometer

Answer 21

Air velocity

Question 22

Sling Psychrometer

Answer 22

Air humidity

Question 23

Wet and dry bulb thermometer

Answer 23

Air humidity