Life Safety Option 5 50 questions

1. Positive conditions of everyday human life and development of the natural environment:
a) comfortable;
b) harmful;
c) risk;
g) allowed;
d) services and permissible.

2. Dangerous and harmful factors are divided into:
a) chemical engineering, biological;
b) the chemical, physical, biological,
c) physiological, labor, manufacturing;
d) health, medical, health;
d) biological, mental, physical.

3. The volume of industrial premises per worker should be (according to the SNP - 79):
a) at least 15 m3, the area - at least 4.5 m2, height - not less than 3.2 m;
b) not less than 12 m3, the area - at least 9.5 m2, height - not less than 2 m;
c) not less than 13 m3, the area - at least 10 m2, the height - not less than 1.5 m;
d) not less than 18 m3, the area - at least 9 m2 height - not less than 2 m;
d) not less than 20 m3, area - not less than 12 m2, the height - not less than 2.5 m.

4. The main optical performance are
a) the luminous flux, luminous intensity, illuminance, brightness;
b) background, contrast, intensity, illumination;
c) the appearance, pulse, contrast;
d) glare background, brightness, contrast;
e) luminous flux pulsations, brightness, luminous intensity.

5. The main parameters of vibration are:
a) frequency, velocity, voltage, amperage;
b) frequency, amplitude displacement, velocity, acceleration, vibration period;
c) speed, acceleration, resonance, power, speed;
d) the current, power, weight, volume;
e) frequency response, amplitude, velocity, acceleration.

6. The main physical characteristics of the noise:
a) The frequency of the oscillation threshold of audibility;
b) the frequency, sound pressure, sound pressure level;
c) the wavelength, frequency, pitch;
d) the sound wave, the sound pressure level, hearing threshold;
d) the threshold of pain, the sound pressure level, sound intensity.

7. damaging effect on the human body has an intensity ultrasound
a) above 100 dB;
b) up to 120 dB;
c) higher than 70 dB;
g) higher than 50 dB;
d) higher than 80 dB.

8. What are the harmful chemicals in the body undergo various transformations and changes:
a) almost all organic and inorganic substances;
b) only the chemically inert substance;
c) volatile organic substances;
d) chemically inert and volatile organic compounds;
d) only liquid volatiles and low-volatile oily substance.

9. According to the degree of influence on the body chemically hazardous substances are divided into the following classes:
a) I - non-hazardous, II - low hazard, III - moderately hazardous, IV - very dangerous;
b) I - extremely hazardous, II - highly dangerous, III - moderately hazardous, IV - low hazard;
in) I - low hazard, II - highly hazardous, III - a very dangerous, IV - non-hazardous;
g) I - deadly, II - toxic, III - highly toxic, IV - low hazard;
d) I - obscheyadovitye, II - suffocating, III - annoying, IV - psihohimi-cal.

10. Limits of values \u200b\u200bof the electric field components (san and P number 2971 - 84) (kV / m):
a) within residential buildings - 0.7 kV / m;
in residential areas - 10 kV / m;
the territory of the gardens and orchards within poselkovoj features - 5 kV / m;

b) within residential buildings - 0.5 kV / m;
in residential areas - 1 kV / m;
the territory of the gardens and orchards within poselkovoj features - 5 kV / m;

c) in residential buildings - 2 kV / m;
in residential areas - 5 kV / m;
the territory of the gardens and orchards within the lines of village - 10 kV / m;

d) inside residential buildings - 0.4 kV / m;
in residential areas - 0.5 kV / m;
the territory of the gardens and orchards within poselkovoj features - 4 kV / m;

d) inside residential buildings - 4 kV / m;
in residential areas - 0.3 kV / m;
the territory of the gardens and orchards within poselkovoj features - 0.4 kV / m.

11.