Quiz Preview 1. Trades & Technology - Industrial And Skilled Trade

Insulation must protect from flashover damage and _____.

The longer the level used, the more accurate the reading

For an angle or U pull, the length of a pull box housing shielded conductors carrying over 600V must be how much greater than the outside diameter of the largest shielded conductor entering the box?

4

Benching systems are prohibited in _____.

in Trades & Technology

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5

If parking a tractor on a grade, the tractor should be parked _____

6

When preparing to start up a previously installed residential steam boiler, the boiler oil burner nozzle must

7

A high temperature rise across a furnace heat exchanger may cause _____

8

What is involved in training for a DR plan?

9

Which of the following is true with regard to scissor lifts?

10

A hand tool used to mix concrete and patch holes is the _____

11

An example of a pozzolanic material used in making very high-strength concrete is _____.

12

La letra J en la Figura 1 señala _____.

13

Which of the following statements about a deaerating tank is true?

14

The zero vernier graduation lies between 3.050 and 3.075 and the vernier graduation that coincides with a main scale graduation is 21. What is the vernier caliper setting?

15

If you do not grind the weld profile flush after making a weld repair to a truck frame, which of the following is altered in a way that can cause another failure?

16

Solve 4x2+ 14x- 8 = 0.

17

Locate the beam

18

Technician A says that a DD axial power turbine (APT) uses a constant geometry (CG) turbine principle. Technician B says that DDC claim their APT can add over 100 horsepower to engine output potential. Who is correct?

19

The tool shown in the above figure is used to _____.

20

Technician A says that the best way to check for a misfiring cylinder on a high-pressure common rail fuel system is to crack each injector line open one by one. Technician B says that it may be necessary to use an electronic service tool to enter new injector calibration information into the ECM memory if an injector is replaced. Who is correct?

21

Technician A says that a disadvantage of forged steel trunk pistons is reduced headland volume when compared with articulating pistons. Technician B says that when a diesel engine uses lighter pistons, higher rpms are possible. Who is correct?

22

All electric furnaces use package sequencers.

23

Technician A says that all tires of the same nominal diameter have the same rolling radius. Technician B says that to determine the rolling radius of a truck tire, measure the periphery using a tape measure and divide the result into one mile. Who is correct?

24

How can you reduce the amount of voltage applied to the motor during inching?

25

Technician A says that EUPs are mechanically-actuated by a cylinder block mounted camshaft. Technician B says that SMART injectors supplied by high pressure lines are used on current EUP fuel systems. Who is correct?

26

are two-terminal, solid-state (electronic) devices that act as electrical check valves.

27

Geothermal heat pumps use the ____________________ or ____________________ as a heat source or a heat sink.

28

What is the difference between spherical porosity and cylindrical porosity?

29

When installing an oil-fired furnace in a confined space with a firing rate of 100,000 Btuh, what is the minimum free air opening required if the combustion air vents are directly communicating with the outside?

30

In a heat-pump room air conditioner in the heating cycle, the evaporator is the ____________________ coil.

31

The ____ roll between the inner and outer rings.

32

El término cabeza de cobra normalmente se utiliza para describir un tipo de accesorio de iluminación_____.

33

Bar graphs are the most common type of graph used where there is no causal relationship between quantities, and data where there is a causal relationship between quantities.

34

Which of the following is a required test for a push tube before returning it to service?

35

Themaximum diameter of any single porosity shall not exceed ______________.

36

A suitably strong aggregate material for use in high-strength concrete is _____

37

The prefix ____________________ indicates a filler metal that is supplied for use as either a current-carrying electrode or in rod forms.

38

Ice-making machines are the same as ice-holding machines such as those seen on the outside of a convenience store or service station.

39

In the figure above, symbol A represents a _____

40

A ____ works by holding the forces on both sides of a diaphragm in balance.

41

The refrigeration cycle is made possible by the ________ difference, which is maintained by the compressor and metering device

42

Pneumatic controls operate by:

43

<img src="https://sciemce.com/files/4/ppg__cognero__UNIT_45_Solution_of_Equations_by_the_Multiplication_Root_and_Power_Principles_of_Equality__media__e97fc621-e227-4cf0-ac6d-aeecd3bfc9db.PNG" style="vertical-align: 0px;" width="192px" height="126px" /> The width of the rectangular sheet of metal shown in the accompanying figure is equal to the area of the sheet divided by its length. Compute the area of a sheet that is 3 1/4 feet wide and 5 1/2 feet long.

44

A device that is capable of both supplying a loop's power and reading the output signals of each of the instruments in the loop is a _____

45

A mechanical contractor's normal sequence in which drawings are produced in house for a construction project is _____.

46

When do chemical oxidation and chemical reduction occur?

47

The operating temperature within a fixture is a primary factor in the selection of a _____

48

El punto en el cual se produce la ruptura por avalancha en un diodo se conoce como:

49

Green advantages add approximately 5% to a standard construction package

50

Technician A states static discharge is usually not an issue in a shop environment because of cement floors and rubber soled foot ware. Technician B states when working on vehicle electronic circuits you should always wear a grounding strap as a precaution. Which technician is correct?

51

Raising the vapor temperature above the boiling point is called ____________________.

52

A neutral flame is used for most welding and cutting operations.

53

In a __________________steer system one axle speeds up, and the other slows down in equal proportion.

54

A carbon steel ring, cut about the same size as a gasket, with a piece of soft metal, such as copper, brass, or aluminum bolted across the middle of the ring is a _____.

55

Flue gas condensation can be prevented by:

56

Compare the relaxation times, of vanadium and tantalum, due to the presence of oxygen atoms in solid solution at 400 K. The lattice parameters of vanadium and tantalum are respectively equal to 0.3029 and 0.3303 nm.

57

No crane or other heavy equipment should be operated within ____ feet of energized electrical transmission lines.

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Quiz Preview 1. Trades & Technology - Industrial And Skilled Trade

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