Free Pipefitter Practice Test with Questions and Answers 2024

## Free Pipefitter Practice Questions

These Pipefitter test questions and answers were specifically chosen from our full Pipefitter practice pack to help improve your score and ace your pre-employment process.

### Mechanical Reasoning Pressure Sample Question

1. A canister containing oxygen gas at room temperature (25°C) has a pressure gauge attached. If we add oxygen gas to the canister what will the pressure gauge show?

A. Pressure increase.

B. Pressure decrease.

C. Pressure unchanged.

D. Cannot say.

According to the Ideal Gas Law:

PV = nRT

P =pressure, V = volume, n = number of moles of gas (amount of gas), R = Gas constant, T = temperature.

Since the amount of gas n increases, the right side of the equation increases too (provided that the temperature remains constant).
The volume of the canister is unchanged, thus in order to maintain the equation the pressure must increase.

A pressure question in mechanical reasoning typically involves understanding how pressure affects a system, such as how it changes with depth or how it is affected by different forces. To practice more Mechanical Pressure questions check out the JobTestPrep pipefitter prep guide.

2. We now know that radioactive decay accounts for half the Earth’s heat. But what of the other half? Some can surely be accounted for by what is called primordial heat--heat leftover from the Earth’s violent formation. But whether or not that could account for all of that remaining 20 terawatts is unknown (and some think unlikely).

A. earth's heat.

B. The galaxy's heat.

C. 50% of earth heat.

D. The moon's heat.

"We now know that radioactive decay accounts for half the Earth’s heat. But what of the other half? Some can surely be accounted for by what is called primordial heat--heat leftover from the Earth’s violent formation. But whether or not that could account for all of that remaining 20 terawatts is unknown (and some think unlikely)."

Reading comprehension questions are questions that are designed to test a reader's understanding of a passage or text. These questions require the reader to use their comprehension skills to analyze and interpret the information presented in the text. To practice more Reading Comprehension questions go to the JobTestPrep pipefitter guide page.

### Spatial Reasoning Sample Question

3. The letters near the sides of each shape point out where exactly should the different shapes be joined together. Which of the following options shows the joint shape?

A. A.

B. B.

C. C.

D. D.

E. E.

To solve this question, you need to use your spatial orientation skills. Attach the X edge of the left shape to the X edge of the middle shape, and the Y edge of the right shape to the Y edge of the middle shape.

Compare the final shape to the answer options.

Spatial reasoning refers to the ability to understand and manipulate shapes, objects, and space in the mind. It involves the ability to mentally visualize, rotate, and manipulate objects in three-dimensional space. To practice more Spatial Reasoning questions go to the JobTestPrep pipefitter page.

### 4. How long will it take to fill the pool, using a pipe with a flow rate of 1 [liter/second]?

A. 18 minutes.

B. Half an hour.

C. An hour.

First, we will calculate the volume of the pool: 1m*1m*1.8m = 1.8m3
=> The volume of the pool is 1.8 meters cubed.
Next, we are interested in finding out how long it will take to fill the pool, using a pipe with a 1 [liter/second] rate of flow.
Before we begin our calculations, converting the data into the same units will make it easier for us to choose the correct answer and not fall into "traps".
We will use the following familiar conversions:
1[hour] = 3600[seconds]
1[m3] = 1000[liter]
In order to find the length of time needed to fill the pool, we divide the volume (V) by the flux (Q):
V/Q = 1.8[m3]/1[liter] = 1800[liter]/1[liter/second] = 1800[second] = 0.5[hour]
Therefore, the correct answer is 2: half an hour.

Mechanical hydraulics questions are typically related to the principles and applications of fluid mechanics in mechanical systems, specifically those involving hydraulic components such as pumps, valves, cylinders, and motors. To practice more Mechanical Reasoning questions go to the JobTestPrep pipefitter preparation page.

5. What is the value of X?

8/X - 0.16 = 0.64
X =?

A. 0.06.

B. 10.

C. 4.

D. 32.

E. N.

The correct answer is (B) - 10.

This question deals with a single variable equation.
When solving a single variable equation, the goal is to isolate the variable (mostly called x) to find its value.
The way to do that is by gathering all variable-expressions of the equation (one or more X-expressions) on one side and all numerical members of the equation on the other side. This is done using the four operations (+, -, *, /) in the equation, as needed.
Important! Any numerical operation must be applied on both sides of the equation.
On this case, to isolate X apply the following operations to both sides of the equation:
8/X - 0.16 + 0.16 = 0.64 + 0.16
8/X = 0.8
2. Multiply by X
(8/X)*X = 0.8*X
8 = 0.8X
3. Divide by 0.8
8/0.8 = 0.8X/0.8
10 = X

*To ease the calculation, you may use Solving tip #1 just before step 3:
8 = 0.8X         /*10
8*10 = 0.8X*10
80 = 8X
Now, divide by 8
80/8 = 8X/8
=> 10 = X

A math algebra question is a type of mathematical problem that involves the manipulation of variables and equations to solve for an unknown value or set of values. Algebra is a branch of mathematics that deals with symbols and the rules for manipulating those symbols to solve problems.To practice more Math Algebra questions go to the JobTestPrep pipefitter study page.

### Math Word Problem Sample Question

6. A policeman gave out four \$200 tickets, five \$300 tickets and two \$100 tickets. What is the total value of all the tickets?

A. 2,200\$.

B. 2,000\$.

C. 1,900\$.

D. 2,500\$.

The total value of tickets is:
(4×\$200) + (5×\$300) +(2×\$100)
= \$800+\$1,500+\$200
=\$2,500

A math word problem question is a type of problem in which a situation is presented in words, and the solver is required to use mathematical operations to find a solution. The problem may involve arithmetic, algebra, geometry, or other branches of mathematics. To practice more Math Word Problem questions go to the JobTestPrep pipefitter prep page.

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