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20 Cards in this Set
- Front
- Back
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1) Accident prevention relies on all but one of the following --
(A) Good housekeeping (B) Proper use of ladders (C) Knowledge of first aid (D) Proper use of handrails |
(C) Knowledge of first aid
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2) The minimum electric current passing through the body for one second which is generally considered fatal is ----
(A) 1 miliampere (B) 5 milliampere (C) 10 miliampere (D) 100 milliampere |
(D) 100 milliampere
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3) An electrical circuit should be treated as if it is energized until ---
(A) The circuit breaker is indicated open (B) The disconnect is indicated open (C) The circuit is proven de-energized (D) The DC circuit is open to the control circuit |
(C) The circuit is proven de-energized
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4) The distance at which the foot of the ladder should be placed from the wall is ---
(A) 1/4 the length of the ladder (B) 1/4 the length of the ladder to the top support (C) 1/4 the height of the wall (D) 4 times the ladder width |
(B) 1/4 the length of the ladder to the top support
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5) Unless protection is provided by other means, a scaffold plank should not overhang its support by more than ---
(A) 6 inches (B) 12 inches (C) 18 inches (D) 24 inches |
(C) 18 inches
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6) For removing hazardous vapor from the air, a chlorine respirator would use a ---
(A) Chemical filter (B) Mechanical filter (C) Particulate filter (D) Chemical trap |
(A) Chemical filter
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7) The Oxygen Breathing Appartus will provide respiratory protection, under hard work, for a minimum period of ---
(A) 30 minutes (B) 45 minutes (C) 60 minutes (D) 90 minutes |
(B) 45 minutes
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8) The Scott Air-Pak II will provide respiratory protection for a period of approximately ---
(A) 20 minutes (B) 30 minutes (C) 45 minutes (D) 60 minutes |
(B) 30 minutes
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9) In general, the first thing you should do to help a victim of a severe accident is ---
(A) Call a doctor (B) Call an ambulance (C) Keep the injured person warm (D) Keep the injured person lying down |
(D) Keep the injured person lying down
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10) A good defensive driver knows that the safe following distance to maintain while driving at speeds of 60 miles per hour is at least ---
(A) Two car lengths (B) Four car lengths (C) Six car lengths (D) Ten feet for each ten MPH of speed |
(C) Six car lengths
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11) Fires involving wood, textiles, paper, rubbish, and the like are ---
(A) Class A (B) Class B (C) Class C (D) Class D |
(A) Class A
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12) Fires involving flammable liquids such as gasoline, oils and grease are ---
(A) Class A (B) Class B (C) Class C (D) Class D |
(B) Class B
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13) Dry chemical extinguishers do not have the cooling and quenching effect usually needed to quench ---
(A) Class A fires (B) Class B fires (C) Class C fires (D) Class D fires |
(A) Class A fires
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14) The maximum effective range of 150 lb dry chemical extinguishers is about ---
(A) 5 feet (B) 25 feet (C) 50 feet (D) 70 feet |
(B) 25 feet
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15) The duration of discharge of a 20 lb CO2 fire extinguisher is about ---
(A) 5 seconds (B) 10 seconds (C) 45 seconds (D) 60 seconds |
(B) 10 seconds
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16) The effective range of a CO2 fire extinguisher is about ---(A) 3 feet
(B) 8 feet (C) 50 feet (D) 70 feet |
(B) 8 feet
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17) Sprinkler systems for an average office building would probably use fusible links of ---
(A) Ordinary degree (B) Intermediate degree (C) Hard degree (D) Extra hard degree |
(A) Ordinary degree
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18) The refrigeration unit on a low pressure CO2 storage tank will maintain the temperature of the liquid at approximately ---
(A) -20 degrees F (B) 0 degrees F (C) 32 degrees F (D) 87.8 degrees F |
(B) 0 degrees F
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19) The specific volume of carbon dioxide is 8.159 cubic feet per pound (at 32 degrees F and an absolute pressure of 14.696 psi. Therefore, the gas released from a 20 lb CO2 extinguisher would expand to approximately ---
(A) 2.45 cu ft (B) 24.5 cu ft (C) 180 cu ft (D) 450 cu ft |
(C) 180 cu ft
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20) The following time, rate distance problem is included to cause enrollees to think about the advantage of an early start rather than high speed driving.
Assume two vehicles are needed to carry the necessary load from point A to point B, a distance of 30 miles. The first vehicle travels at 60 mph and leaves point A ten minutes before the second vehicle. If the second vehicle arrives at point B at the same time as the first vehicle, the driver of the second vehicle had to drive at a speed of ---- (A) 60 mph (B) 70 mph (C) 75 mph (D) 90 mph |
(D) 90 mph
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