Which of the following definitions describes a physical hazard?
A) The most commonly thought of hazard in construction. This hazard includes radiation, extreme temperatures, noise, and vibration.
B) These hazards can lead to injuries to the joints or muscles by way of heavy, frequent lifting, repetitive tasks.
C) Can be present in dust, fumes, liquids, solids, mists, vapors, or gases of products used at a site or released during a construction job
D) Microorganisms, such as bacteria, fungus, mold, or viruses that can cause illness.
A) The most commonly thought of hazard in construction. This hazard includes radiation, extreme temperatures, noise, and vibration.
B) These hazards can lead to injuries to the joints or muscles by way of heavy, frequent lifting, repetitive tasks.
C) Can be present in dust, fumes, liquids, solids, mists, vapors, or gases of products used at a site or released during a construction job
D) Microorganisms, such as bacteria, fungus, mold, or viruses that can cause illness.
Answer & ExplanationAnswer: A) The most commonly thought of hazard in construction. This hazard includes radiation, extreme temperatures, noise, and vibration.
Explanation:
A physical hazard is defined as "A factor within the environment that can harm the body without necessarily touching it."
Vibration and noise are examples of physical hazards.
Physical hazards include but aren't limited to electricity, radiation, pressure, noise, heights and vibration amongst many others.
Param Vir Chakra (PVC) is India's highest military decoration awarded for the displaying distinguished acts of valor during the war.
Ashok Chakra Award – An Indian military decoration awarded for valour, courageous action or self-sacrifice away from the battlefield. It is the peacetime equivalent of the Param Vir Chakra.
Kirti Chakra – Second in order of precedence of peacetime gallantry awards.
Maha Vir Chakra (MVC) is literally called a great warrior medal. Vir Chakra is an Indian gallantry award presented for acts of bravery in the wars.
A and B can do a piece of work for Rs 1540. Find the difference between the wages of C and B for the same work If A can do the work in 12 days and B can do the same work in 8 days and with the help of C, A and B can do the same work in 2 days?
'K' cycled from A to B at 10 kmph and returned at the rate of 9 kmph. 'L' cycled both ways at 12 kmph. In the whole journey 'L' took 10 minutes less than 'K'. Find the distance between A and B ?
Let 'd' be the distance between A and B K -time = d/10 + d/9 = 19d/90 hours L -time = 2d/12 = d/6 hours We know that, 10 min = 1/6 hours Thus, time difference between K and L is given as 10 minutes. => 19d/90 - d/6 = 1/6 => (19d-15d)/90 = 1/6 => 4d/90 = 1/6 Thus, d= 15/4 km = 3.75 km.
The capacity of a tank is 2400 . A pump can be used both for filling and emptying the tank. The emptying capacity of the pump is 10/minute higher than its filling capacity. And also, the pump needs 8 minutes less to empty the tank than to fill it. Find the filling capacity of the pump.
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