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EEST101 Midterm
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Gravity
Terms in this set (70)
Companies with strong safety cultures usually have lower _____.
A. Turnover
Which of these is a true statement regarding safety?
A. Safety is a learned behavior and attitude.
Poor lighting, excessive noise, and inadequate guards for moving parts are examples of _____.
B. Unsafe conditions
The activity that consists of breaking a job into its component tasks and then analyzing each step for potential hazards is called a _____.
A. Job Safety Analysis
A measure of the probability, consequences, and exposure related to an event is referred to as _____.
C. Risk
If there is a hole in the floor of a structure, the preferred method of protecting workers from falls is to _____.
A. Cover the opening and label the cover
The D-ring or support point on a safety harness should be placed _____.
A. Between the shoulder blades
A personal fall arrest system should be inspected monthly by a ______.
D. Competent person
Lanyards that have no shock-absorbing features are used for _____.
B. Positioning
When placing a ladder against a platform or roof, the top of the ladder should extend above the point where the ladder touches the platform or roof by at least _____.
B. 3 feet
When performing overhead work on scaffolding, what protective measures must be taken to prevent objects from falling and striking a person below?
C. Toeboards, debris nets, or canopies must be applied.
When stacking materials such as bricks or block, do not stack materials beyond a _____.
B. 4:1 height-to-base ratio
Benching systems are prohibited in _____.
C. Type C soils
In the absence of other information, all soil in an excavation should be treated as if it is _____.
C. Type C
Daily inspection of an excavation must be performed by a(n) _____.
B. Competent person
One of the most common grounding systems used for protection against accidental electrical shock is the
B. three-wire system
A polarized electrical receptacle is used for _____.
C. Double-insulated tools
A system that protects workers from the release of hazardous energy while they work with machines and equipment is referred to as _____.
C. Lockout/tagout
In a lockout/tagout situation, a personal lock and tag must be removed by _____.
D. The person who applied them
Hard hats should be made of fiberglass or _____.
B. Reinforced plastic
A good general rule about hearing protection is that it should be used if you must raise your voice for someone to hear you when they are _____.
A. 2 feet
When there is the potential to be exposed to asbestos, workers must _____.
C. report it to a supervisor and avoid disturbing it
The respirator that would be used where dust or solid particles might be inhaled is a _____.
C. half mask or mouthpiece with a mechanical filter
One source of lead on some job sites is _____.
D. Paint
Hepatitis can be caused by contact with _____.
C. Blood
One of the symptoms of heat stroke is _____.
C. Extremely high body temperature
Which of the following conditions is considered life threatening?
A. Heat stroke
When other workers are working near a welding operation, the standard practice is to _____.
D. screen the work area with welding shields
What type of fire extinguisher would be used on an electric motor that has overheated and caught fire?
C. Class C
The type of permit that must be issued before a permit-required confined space can be accessed is called a(n) _______.
B. Entry permit
What is the place value of 2 in the number 123,456?
C. Ten thousands
Forty-five thousand, six hundred twelve pipe fittings have been ordered for a large project. How would you write this number as a whole number using digits?
C. 45,612
Add the following numbers together: 811, 901, 88, and 5. The sum is _____.
D. 1,805
Your job as a carpenter pays $20/hour and you worked 40 hours last week. The taxes withheld from your wages were $83 federal tax and $19 state tax. Your total check is _____.
A. $698
A package contains 12 electrical locks, each with a unique key. A package is delivered to 16 job site superintendents. How many unique keys will result from the distribution?
A. 192
You have 5,814 meters of rope that you need to cut into 27 meter sections. How many 27 meter sections of rope will you be able to create, and how much rope will be left over as waste?
C. 215 sections with 9 meters left over
An equivalent fraction to 5/16 is _____.
B. 10/32
When reduced to its lowest terms, the fraction 12/16 would read as _____.
A. 3/4
The improper fraction 37/6 can be changed to the mixed number _____.
C. 6-1/6
1/4 + 3/8 = _____. Reduce your answer to the lowest terms.
C. 5/8
8/12 - 4/8 = _____. Reduce your answer to the lowest terms.
D. 1/6
7/8 × 3/9 = _____. Reduce your answer to the lowest terms.
C. 7/24
7/8 ÷ 7/16 = _____. Reduce your answer to the lowest terms.
D. 2
In a number such as 52.25, any numbers shown to the right of the decimal point represent _____.
B. that part of the number that is LESS than 1
Of the following series of numbers, which is the higher number? 0.04671; 0.04761; 0.4761; 0.4671.
C. 0.4761
One sheet of drywall weighs 48.7 pounds. If 50 sheets are ordered, the total weight of the order would be
B. 2,435.0 pounds
You need to mix 42 kilograms of mortar. Each kilogram of mortar mix requires 0.03 liters of water. How many liters of water do you need? (Round your answer to the nearest tenth of a liter.)
B. 1.3 liters
When a number is stated as a percentage, it means that number represents a portion of _____.
B. 100
When converting decimals to a percentage, simply move the decimal point _____.
D. Two places to the right
Convert 0.86 into a fraction and reduce the answer to lowest terms.
C. 43/50
The marked measurement in the figure above indicates _____.
A. 2-1/8 inches
(Refer to packet 2, Question #21)
The marked measurement in the figure above indicates _____.
D. 2.6 centimeters
(Refer to packet 2, Question #22)
The metric ruler is typically divided into _____.
B. centimeters and millimeters
The marked measurement in the figure above indicates _____.
C. 9-13/16 inches
(Refer to Packet 2, Question #24)
An inside measurement can be taken with a tape measure by _____.
A. adding the length of the tape measure case
In the metric system, each millimeter increment is equal to _____.
C. 1/10 of a centimeter
Convert 612 feet to meters using the following information: 1 meter = 3.28 feet. Round your answer to the nearest one-hundredth.
A. 186.59 meters
Using the formula 1 kg = 2.205 pounds, 165 pounds converts to a weight of _____.
B. 74.8 kilograms
One ounce is equal to 28.35 grams. Convert 16 ounces to grams. Round your answer to the nearest tenth.
D. 453.6 grams
One cubic meter represents a cube shape that measures 1 meter in all three dimensions. How long is each side in centimeters?
C. 100cm
On the Fahrenheit scale, how many degrees are there between the freezing and boiling point of water?
C. 180 degrees
Convert 70°F to Celsius using the following formula: °C = 5/9 (°F-32). Round your answer to the nearest degree.
A. 21°C
If an angle is not acute, straight, or obtuse, it must be a(n) _____.
C. Right angle
While the measurement of the individual angles in a triangle can vary, their sum is always _____.
C. 180
What does a square have in common with a rectangle?
B. All four corners are 90 degree angles.
The circumference of a circle represents _____.
A. The distance around the outside
Given the equation 1/2(b × h), the area of a triangular roof section with a base of 7 feet and a height of 3.5 feet is _____.
C. 12.25 sq ft
A floor for a 4-meter square shed must be fabricated. The area of the floor is _____.
B. 16 m2
The volume of a shape in the metric system is stated in terms of _____.
A. cu m
The volume of a 9-inch cube is _____.
B. 729 cu in
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Verified questions
ADVANCED MATH
Show that the two given sets have equal cardinality by describing a bijection from one to the other. Describe your bijection with a formula (not as a table). $\mathbb{N}$ and $\mathbb{Z}$
ADVANCED MATH
The following selections were taken from letters-to-the-editor newspaper columns. Each contains one or more arguments, but the exact form of the argument may be hidden or ambiguous. Use the argument forms presented in this section to structure the selections as specifically named arguments. There is a simple way to put a big dent in the national human-organ shortage: Allocate organs first to the people who have agreed to donate their own. Giving organs first to registered donors would persuade more people to register, and that would make the allocation system fairer. People who aren’t willing to share the gift of life should go to the end of the waiting list.
ADVANCED MATH
For a telephone survey, a marketing research group needs to contact at least 150 wives, 120 husbands, 100 single adult males, and 110 single adult females. It costs $2 to make a daytime call and (because of higher labor costs)$5 to make an evening call. Table 52 lists the results Because of limited staff, at most half of all phone calls can be evening calls. Formulate an LP to minimize the cost of completing the survey. Table 52: $$ \begin{matrix} \text{Person Responding} & \text{Percent of Daytime Calls} & \text{Percent of Evening Calls} & \text{ }\\ \text{Wife} & \text{30} & \text{30}\\ \text{Husband} & \text{10} & \text{30}\\\text{Single male} & \text{10} & \text{15}\\ \text{Single female} & \text{10} & \text{20}\\\text{None} & \text{40} & \text{5}\\ \end{matrix} $$
ADVANCED MATH
Use Gauss's lemma to compute each of the Legendre symbols below (that is, in each case obtain the integer $n$ for which $(a / p)=(-1)^{n} ) :$ (a) (8/11). (b) (7 /13). (c) (5/19). (d) (11/23). (e) (6/31).