MCQ on Fire safety
MCQ on Fire safety
1- The travel time that begins when firefighting units are en route to the emergency incident and ends when units arrive at the scene is the:
(A) Dispatch time
(B) Response Time
(C) Turnout Time
(D) Call Processing time
2- The organisation shall establish, implement and maintain a procedures to record, investigate and analyse the incidents at workplace in order to;
(A) Identify the need for corrective action
(B) Identify opportunities for preventive action
(C) Communicate the results of such investigations
(D) All of the above
3- The process of eliminating the potential for flammable atmosphere by using an inert gas to displace oxygen required for ignition is known as;
(A) Purging
(B) Inerting
(C) Dilution
(D) None of the above
4- Negative value of heat of formation represents;
(A) Endothermic reaction
(B) Exothermic reaction
(C) Depends on the reaction
(D) Depends on the reactant
5- Heat of formation for pure element is;
(A) Zero
(B) Unity
(C) Depends on elements
(D) Depends on state of elements
6- A haystack may catch fire internally through;
(A) Spontaneous combustion
(B) Explosive combustion
(C) Smouldering
(D) Explosion
7- _______ is the turbulent diffusion fire, which burns above the pool of vaporizing hydrocarbon.
(A) Jet fire
(B) Pool fire
(C) Fire ball
(D) Flash fire
8- The range of vapor concentration for a given temperature and pressure beyond which no flame will propagate is called as;
(A) Flash point
(B) Limiting Oxygen Concentration
(C) Saturated vapour pressure
(D) Flammability limits
9- _______ is a shock wave in open air, which is generally followed by a strong wind;
(A) Deflagration
(B) Blast wave
(C) Detonation
(D) Combustion
10- Mechanisms that require thermal, electrical, or manual triggering to control a fire are called as;
(A) Active systems
(B) Passive systems
(C) Combine system
(D) Isolated system
11- Smoke particles cause reduced visibility because of;
(A) Light absorption & scattering
(B) Light reflection
(C) Light refraction
(D) Light emission
ANSWERS:
1-(B), 2-(D), 3-(B), 4-(B), 5-(A), 6-(A), 7-(B), 8-(D), 9-(B), 10-(A), 11-(A)