Trades & Technology - Industrial And Skilled Trade, Helping Quiz 9

When a dead short occurs, what happens to circuit resistance?

The halide leak detector should be used in well ventilated areas as the resulting blue or green flame indicates that phosgene gas is being produced.

3

Troubleshooting Reach-In / Low Temp - Diagnosis: Overcharged with refrigerant

4

According to OSHA standards, your employer must _____.

5

Pneumatic controls must have a permanent air supply that is ____.

6

The coil of a potential relay used with small single-phase compressors should have a resistance of approximately:

7

Which of the following best explains why some OEMs state that the high pressure pipes used on CR systems should not be re-used?

8

Rust creates a hazard below decks on barges because it _____.

9

An outward clinch tacker is used to ____.

10

Which type of circuit is uncommon in HVACR work?

11

What is the most efficient way of converting molten steel into a usable product?

12

________: the level of output per unit of input.

13

A special squirrel cage winding, called ____________________, is used to start a synchronous motor.

14

When a bypass is installed around a steam trap, the best type of valve used to allow manual balancing of flow is a _____.

15

Relay coil suppression prevents the relay from drawing too much current.

16

Technician A says that as wheelbase becomes shorter in a highway truck, its resistance to yaw is reduced. Technician B says that an ABS add-on called directional stability control uses the brake system to avoid tracking yaw. Who is correct?

17

For open-root V-groove welding of stainless-steel pipe, the bevel angle of the pipe should be _____

18

Those individuals closest to the problem often _____.

19

The ____ is designed to quickly stop the flow of gas during a flashback.

20

A motor enclosure that minimizes the entrance of rain and airborne particles to the electrical parts is considered _____.

21

What term is used to measure the aggressiveness of friction facings?

22

Visual inspections may include: color, missing components, extent of wear, and corrosion.

23

If a single slab cylinder head is used on an in-line 6-cylinder diesel engine, how many engine cylinders will the cylinder head cover?

24

Which of the following best describes a bottle jack?

25

What are some of the types of information you can find on the internet?

26

When a grinding stone wears down, keep the tool rest adjusted to within ____________________ of an inch.

27

If station 0+50 has an elevation of -2.55 feet, determine the elevation of station 3+60 when the grade is 0.025'/ft.

28

A circuit diagram shows that the circuit divides into separate branches and there are also series loads. This is a(n) _____.

29

Find the area in sq inches of a triangle with side lengths 3.5 in, 3.7 in, and 3.8 in. Round your answer to the nearest tenth of a square inch.

30

In the diagram, triangle ABC is congruent to triangle DEF. If side AC is equal to 12 inches, side AB is 9 inches and Side BC is 8 inches. What is the measure of EF?<img src="https://sciemce.com/files/2/ppg__cognero__Unit_23_Congruent_and_Similar_Figures__media__dc15681e-2b4c-43a8-99d9-73dd280569b7.PNG" style="vertical-align: 0px;" width="184px" height="77px" />

31

In the thread specification 1/2-14 NPT, the 1/2 is the ____________________.

32

____ is usually 3/16 in. (4.8 mm) or thicker and measured in inches and fractions of inches.

33

The solid-state relay uses a solid-state component called a(n) ____________________.

34

A support column in the shape of a frustum of a right circular cone has a slant height of 15.25 feet. The smaller base is 12.00 inches in diameter and the larger base is 24.00 inches in diameter. Compute the volume in cubic feet rounded to 3 significant digits.

35

A ___________ may be encountered during a blade inspection.

36

An air contaminant that is most difficult to remove through common filtration methods is:

37

When an operator hoists a load, adding layers of wire rope to the hoist drum, the crane’s maximum available line pull _____.

38

If the compressor motor megohm value begins to decrease, it is a sign that ____________________ or some other foreign matter may be getting into the system.

39

Most of the energy we use comes from something we already have on Earth. The only "new" energy we get comes from the ____________________.

40

The answer is in this format: 5:9. If it takes one electrician 18 hours to wire a house and a second electrician 45 hours to wire a similar house, what is the ratio of the second electrician's to the first electrician's time?