1.
Instructions:Please select the best answer to the following questions. Consult the test supervisor about calculator use.3/4 + 1/2 =
Correct Answer
C. 1 1/4
Explanation
To solve the equation 3/4 + 1/2, we need to find a common denominator for the fractions. The common denominator is 4. We then convert 3/4 to have a denominator of 4 by multiplying both the numerator and denominator by 1. This gives us 3/4 = 3/4 * 1/1 = 3/4. Next, we convert 1/2 to have a denominator of 4 by multiplying both the numerator and denominator by 2. This gives us 1/2 = 1/2 * 2/2 = 2/4. Now that both fractions have a common denominator, we can add them together: 3/4 + 2/4 = 5/4. The fraction 5/4 can be simplified to 1 1/4, which is the final answer.
2.
Two pints of cleaner are added to 6 pints of water. Cleaner is _________ percent of the mixture.
Correct Answer
B. 25%
Explanation
When two pints of cleaner are added to six pints of water, the total volume of the mixture becomes eight pints. To find the percentage of cleaner in the mixture, we divide the volume of the cleaner by the total volume and multiply by 100. In this case, the volume of the cleaner is two pints, so (2/8) * 100 = 25%. Therefore, cleaner is 25% of the mixture.
3.
5.25 tonnes are equal to how many kilograms?
Correct Answer
A. 5250 kilograms
Explanation
To convert tonnes to kilograms, we need to multiply the given value by 1000 since there are 1000 kilograms in a tonne. Therefore, 5.25 tonnes is equal to 5.25 x 1000 = 5250 kilograms.
4.
15 ft 6 in - 12 ft 8 in =
Correct Answer
D. 2 ft 10 in
Explanation
The given question asks for the result of subtracting 12 ft 8 in from 15 ft 6 in. To subtract, we start with the feet and subtract 12 ft from 15 ft, which gives us 3 ft. Then, we subtract the inches, which are 6 in and 8 in. Since we cannot subtract 8 in from 6 in, we borrow 1 ft (12 in) from the feet and add it to the inches. This gives us 18 in - 8 in, which equals 10 in. Therefore, the final result is 3 ft 10 in.
5.
14 yards are equal to how many feet?
Correct Answer
B. 42
Explanation
The correct answer is 42 because there are 3 feet in 1 yard. Therefore, to convert yards to feet, you multiply the number of yards by 3. In this case, 14 yards multiplied by 3 equals 42 feet.
6.
Metals play a very important role in modern industry.However, pure metal are rarely used.Instead, different metals are mixed together to form combinations called alloys.For example, brass is a combination of copper, zinc, and nickel. Alloys are generally harder than the individual metals which compose them and poorer conductors of heat and electricity than pure metals. For example, brass is a poor conductor of electricity and cooper is one of the best.Alloys are best described as:
Correct Answer
D. Two or more metals mixed together
Explanation
Answer this question based on the information provided by the article.
7.
Metals play a very important role in modern industry.However, pure metal are rarely used.Instead, different metals are mixed together to form combinations called alloys.For example, brass is a combination of copper, zinc, and nickel. Alloys are generally harder than the individual metals which compose them and poorer conductors of heat and electricity than pure metals. For example, brass is a poor conductor of electricity and cooper is one of the best.Compared to the pure metals which compose them, alloys are:
Correct Answer
B. Poorer conductor of electricity.
Explanation
Answer this question based on the information provided by the article.
8.
Which of these pair of magnets will stick together in the position they are in?
Correct Answer
A. Drawing A
Explanation
Drawing A shows two magnets with opposite poles facing each other. Opposite poles attract each other, so these magnets will stick together in the position they are in. Drawing B shows two magnets with like poles facing each other, which will repel each other and not stick together. Therefore, the correct answer is Drawing A.
9.
At the top is a drawing of a glass container holding water and oil. If you add more water what would it look like?
Correct Answer
C. Like glass C
Explanation
Adding more water to the glass container would cause the water level to rise and mix with the oil. This would result in a cloudy appearance, similar to the depiction in glass C. Glass A and glass B do not show any change in the water-oil mixture, so they are not the correct choices. Therefore, the correct answer is that it would look like glass C.
10.
If the shopping cart was moving in the direction of the big arrow and then you stopped it suddenly, which way would the milk carton fall?
Correct Answer
A. Forward A
Explanation
When the shopping cart is abruptly stopped, an object in motion tends to stay in motion due to inertia. Since the milk carton was moving forward with the shopping cart, it will also continue moving in the same direction until an external force acts on it. Therefore, the milk carton will fall forward in the direction of the big arrow, option A.
11.
Which wheels are turning in the same direction as wheel 4?
Correct Answer
C. 1,3, and 5
Explanation
The wheels that are turning in the same direction as wheel 4 are wheels 1, 3, and 5.
12.
Which wrench will make it easier to apply more force to tighten the bolt?
Correct Answer
B. Wrench B
Explanation
Wrench B will make it easier to apply more force to tighten the bolt. This can be attributed to the longer handle of Wrench B, which provides a greater leverage advantage. With a longer handle, more torque can be applied to the bolt, allowing for easier and more efficient tightening. Wrench A, on the other hand, with its shorter handle, would require more effort to achieve the same level of force.
13.
Which battery has the higher voltage?
Correct Answer
C. There's no difference.
Explanation
The correct answer is "There's no difference." This means that both Battery A and Battery B have the same voltage. The question is asking for the battery with the higher voltage, but since there is no difference in voltage between the two options, neither Battery A nor Battery B has a higher voltage.
14.
You want to lift this pole off the ground completely and carry it using one hand. Where should you pick it up to be able to carry it most easily?
Correct Answer
C. From point C
Explanation
The pole should be picked up from point C to be able to carry it most easily. This is because point C is the center of gravity of the pole, which means that picking it up from this point will distribute the weight evenly and make it easier to handle and carry. Picking it up from any other point would cause the pole to tilt or be unbalanced, making it more difficult to carry.
15.
You start with two slices of bread that are exactly the same. You toast slice B. Which slice weights more now?
Correct Answer
A. Slice A
Explanation
Toasting the bread does not change its weight. Therefore, both slices of bread still weigh the same. The answer "Slice A" suggests that Slice A weighs more now, which is incorrect. The correct answer is "There's no difference" as toasting does not affect the weight of the bread.
16.
Which wheel is turning faster?
Correct Answer
B. Wheel B
Explanation
Since no other information is provided, it can be assumed that both wheels are identical and have the same radius. Therefore, the wheel that is turning faster would be the one with a higher angular velocity. However, without any additional context or information, it is not possible to determine which wheel has a higher angular velocity. Thus, the correct answer is Wheel B, as it is a possibility that it could be turning faster.
17.
Which stick is easier to balance on the palm of your hand?
Correct Answer
B. Stick B
Explanation
Stick B is easier to balance on the palm of your hand because it is implied that Stick A is more difficult to balance. The question is asking for a comparison between the two options, and since there is no mention of Stick A being easier or any indication that there is no difference between the two, Stick B is the logical choice.
18.
Convert 30.4 cm into milimeters (mm)
Correct Answer
C. 304 mm
Explanation
To convert centimeters to millimeters, we need to multiply the value by 10. In this case, 30.4 cm multiplied by 10 equals 304 mm. Therefore, the correct answer is 304 mm.
19.
How many pounds (lb) are in 10 kilograms (kg) ?
Correct Answer
B. 22.046 lb
Explanation
There are 2.2046 pounds in 1 kilogram. Therefore, to find the number of pounds in 10 kilograms, we multiply 2.2046 by 10. The result is 22.046 pounds, which is the correct answer.
20.
How many liters (l) are in two gallons (gl)
Correct Answer
D. 7.570 l
Explanation
There are 3.785 liters in one gallon. Therefore, to find the number of liters in two gallons, we need to multiply 3.785 by 2. The result is 7.570 liters.