1. Supply of fresh air is called;
(A) Exhaust
(B) Recirculation
(C) Ventilation
(D) None of these
2. Normal working condition requires _______ temperature;
(A) 20°C
(B) 25°C
(C) 30°C
(D) 40°C
3. Exhaust system means the processing of air to control the factors of;
(A) Temperature
(B) Humidity
(C) All of these
(D) Cleanliness
4. Exhaust pipe is the pipe which extends from manifold to _______ to carry off exhaust gases;
(A) Fuel tank
(B) Engine
(C) Muffler
(D) None of these
5. ________ system is essential in industry where smoke, steam, gases & humidity;
(A) Water supply
(B) Power supply
(C) All of these
(D) Exhaust system
6. Improve the ventilation to avoid;
(A) Suffocation
(B) Both a & b
(C) Bad taste
(D) None of these
7. Noise is the type of _____ accidents;
(A) Environment
(B) Machinery
(C) Human
(D) Plant
8. The higher the level of _____ the longer is the recovery time;
(A) Machinery
(B) None of these
(C) Both a & b
(D) Noise
9. Best way to control the noise is to use;
(A) Noise eliminators
(B) Sound proof room
(C) Ear muffs
(D) None of these
10. Reason to use silencer is;
(A) None of these
(B) Control smoke
(C) Dimply
(D) To control noise pollution