VPH-0022
QUESTION
For how much time water should be boiled to destroy micro-organisms and to make the dissolved impurities harmless?
OPTIONS
(A) 15 to 20 minutes
(B) 5 minutes
(C) 7 minutes
(D) 10 minutes
ANSWER
(A) 15 to 20 minutes
EXPLANATION
Boiling water for about 15–20 minutes is the conventionally recommended duration in this question for adequate destruction of microorganisms. The shorter durations listed do not meet that stated recommendation.
Question Navigator
Veterinary Public Health and Epidemiology · 121 Questions
22
/
121
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121