5038 :: MGM Brakes

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Question #1 of 79

1. MGM Brakes is the oldest and largest spring brake manufacturer in the world.

True

False

Question #2 of 79

2. MGM Brakes first introduced the spring brake in 1959.

True

False

Question #3 of 79

3. MGM Brakes are standard equipment on more makes of heavy-duty vehicles in more countries than any other spring brake manufacturer.

True

False

Question #4 of 79

4. MGM Brakes manufactures only a limited line of products.

True

False

Question #5 of 79

5. The first spring brake introduced by MGM Brakes was a “remote mount”.

True

False

Question #6 of 79

6. Spring brakes function as service brakes, emergency brakes and parking brakes.

True

False

Question #7 of 79

7. The spring brake has two chambers: service brake chamber and parking brake chamber.

True

False

Question #8 of 79

8. The service brake chamber operates independently of the spring brake chamber.

True

False

Question #9 of 79

9. The service brake chamber engages when parking the vehicle or during a sudden loss of system air.

True

False

Question #10 of 79

10. Double-diaphragm actuators, as the name implies, generate force-output by utilizing two separate diaphragms, one within the service chamber, the other inside the parking chamber.

True

False

Question #11 of 79

11. Piston-type spring brakes have a piston instead of a diaphragm inside the parking chamber, though the service chamber utilizes a diaphragm just like the double-diaphragm models.

True

False

Question #12 of 79

12. Piston brake designs are more efficient, offering increased parking, holding and emergency stopping performance.

True

False

Question #13 of 79

13. When choosing a spring brake the customer can make two major mistakes.

True

False

Question #14 of 79

14. MGM means—Maximum Performance, Greater Value, More Coverage.

True

False

Question #15 of 79

15. MGM Brakes was the first in the industry with external breather tube design; sealed, tamper-resistant design; all epoxy-coated components.

True

False

Question #16 of 79

16. The MGM Brakes removable release tool has special ACME threads.

True

False

Question #17 of 79

17. The MGM Brakes Weather Seal™ Plug attaches to the head of the Magnum Series with a drive screw to prevent loss.

True

False

Question #18 of 79

18. The MGM Brakes TR-T and TR-TS Model Weather Seal™ Plugs have an o-ring.

True

False

Question #19 of 79

19. MGM Brakes power springs are 100% magna-fluxed inspected.

True

False

Question #20 of 79

20. All MGM Brakes components have an electrostatically applied, baked on epoxy coating.

True

False

Question #21 of 79

21. MGM Brakes TR Series spring brakes have a taper-head design for tight space installations.

True

False

Question #22 of 79

22. The MGM Brakes TR Series head is made of 10-gauge steel.

True

False

Question #23 of 79

23. MGM Brakes designed and patented the “Tamper Resistant” spring brake.

True

False

Question #24 of 79

24. The MGM Brakes “Heavy Duty” Models offer a more powerful power spring than the standard models.

True

False

Question #25 of 79

25. The External Breather-Tube System seals the head against liquid and solid corrosive contaminants.

True

False

Question #26 of 79

26. The upper piston in the MGM Brakes TR Series is made of 380 Aluminum Alloy to resist corrosion.

True

False

Question #27 of 79

27. The MGM Brakes TR Series upper piston has a spiral design that precludes piston bind and consequential brake drag.

True

False

Question #28 of 79

28. MGM Brakes heavy-duty diaphragms are reinforced with cotton fibers for longer service life.

True

False

Question #29 of 79

29. Flange case push-rods are made from hardened stainless steel.

True

False

Question #30 of 79

30. A flange case push-rod is held in position by two nylon guides to prevent metal-to-metal contact and wear.

True

False

Question #31 of 79

31. The MGM Brakes multi-lipped pressure activated seal has a wiping edge and lube retention grooves.

True

False

Question #32 of 79

32. The MGM Brakes “Stroke Alert” indicates when push-rod stroke is at 65- 70% of the recommended readjustment point.

True

False

Question #33 of 79

33. The MGM Brakes Type 30 non-pressure chamber housing is made from heavy 8-gauge steel and is embossed for added strength.

True

False

Question #34 of 79

34. The MGM Brakes Center Hole Diaphragm (CHD) aligns the power spring with the diaphragm and the internal push-rod.

True

False

Question #35 of 79

35. The “CHD” prevents spring skewing, reduces power spring stress and coil
clash, and increases center seal life.

True

False

Question #36 of 79

36. The service push-rod is fully threaded to meet universal installation
requirements.

True

False

Question #37 of 79

37. An intregal release bolt is not a feature of the MGM Brakes TR Model.

True

False

Question #38 of 79

38. The MGM Brakes Model TR-T has the same basic design features as the
Model TR, plus it has an External Breather Tube.

True

False

Question #39 of 79

39. The MGM Brakes Model TR-TS is ideal for use in severe service applications.

True

False

Question #40 of 79

40. Every MGM Brakes “Piggyback Plus” Kit contains OEM Approved parts.

True

False

Question #41 of 79

41. MGM BRAKES was established in __________

A. 1955

B. 1956

C. 1957

D. 1958

Question #42 of 79

42. The letters “MGM” are derived from the founders of MGM BRAKES, __________ _________and __________

A. Milton, Gummer and Meyer

B. Miller, Gomer and Meyer

C. Miller, Gummer and Meyer

D. none of the above

Question #43 of 79

43. The first MGM Brake was a __________ design.

A. Wedge Brake

B. Severe Service

C. Remote Mount

D. Disc Brake

Question #44 of 79

44. MGM BRAKES is the only full line Spring Brake manufacturer in __________

A. the United States

B. North America

C. the World

D. South America

Question #45 of 79

45. MGM BRAKES offers a full line of Double-Diaphragm and __________
Diaphragm Spring Brakes.

A. Hydro

B. Neoprene

C. Piston

D. none of the above

Question #46 of 79

46. Spring Brakes are sometimes called Air Brake __________.

A. Actuators

B. Reservoirs

C. Containers

D. Valves

Question #47 of 79

47. Spring Brakes function as __________.

A. Service Brakes

B. Parking Brakes

C. Emergency Brakes

D. all of the above

Question #48 of 79

48. The Service Brake Chamber operates __________ the Spring Brake.

A. in conjunction with

B. independently of

C. simultaneously with

D. none of the above

Question #49 of 79

49. The Parking/Emergency Brake engages when parking the vehicle or when __________.

A. the brake has over stroked

B. there is a loss of system air

C. the brake pedal is depressed

D. A & B

Question #50 of 79

50. Typical North American heavy-duty trucks have Spring Brakes installed on __________.

A. all axles

B. only front axles

C. drive axles only

D. none of the above

Question #51 of 79

51. Generally speaking, __________ Spring Brakes have a higher force-output than a Double-Diaphragm design.

A. Wedge Type

B. Piston Type

C. Remote Type

D. all of the above

Question #52 of 79

52. In North America, __________ are the most common vehicles equipped with Piston-Type Actuators.

A. Large Buses

B. Concrete Mixers

C. Dump Trucks

D. All of the above

Question #53 of 79

53. Quality is remembered long after the __________.”

A. day has ended

B. price is forgotten

C. deal is done

D. fat lady sings

Question #54 of 79

54. MGM BRAKES manufacturing plants are located in __________.

A. Charlotte, NC and Reno, NV

B. Murphy, NC and Compton, CA

C. Cloverdale, CA and Murphy, NC

D. Greensboro, NC and Fresno, CA

Question #55 of 79

55. MGM BRAKES was the first in the industry to offer __________.

A. External Breather Tube

B. Tamper Resistant Design

C. Integral Release Bolt

D. all of the above

Question #56 of 79

56. The threads on the MGM BRAKES Detachable Release Tool are _________.

A. special ACME threads

B. standard SAE threads

C. special European threads

D. none of the above

Question #57 of 79

57. The _________ is not epoxy-coated in the MGM Brakes TR Model Spring Brake.

A. Power Spring

B. Steel Head

C. Upper Piston Guide

D. Non-Pressure Chamber Housing

Question #58 of 79

58. The Breather Tube System on the MGM Brakes TR-T and TR-TS Models is __________.

A. for the equalization of air pressure

B. to expel excess moisture from the Spring Brake

C. to prevent contaminants from entering the Spring Brake Chamber

D. to relieve excess pressure in the system

Question #59 of 79

59. The Flange Case on the MGM Brakes TR, TR-T and TR-TS Models is made from __________ for increased corrosion resistance.

A. Alloy 350 Aluminum

B. Alloy 360 Aluminum

C. Alloy 370 Aluminum

D. Alloy 380 Aluminum

Question #60 of 79

60. The MGM Brakes Type 30 Non-Pressure Housing is manufactured from _________, and is embossed for added strength.

A. hardened 380 aluminum

B. 11-gauge steel (.120” thick)

C. stainless steel, zinc dichromate coated

D. 8-gauge steel (.164” thick)

Question #61 of 79

61. The Epoxy Coating on all MGM Brakes brake parts is __________ to resist cracking and peeling.

A. hydrostatically applied, then freeze dried

B. applied by air brush, then heat dried

C. electrostatically applied, then baked on

D. applied by dipping the parts in an epoxy resin, then baked at 400°F

Question #62 of 79

62. The MGM Brakes patented Center Hole Diaphragm (CHD) __________.

A. aligns the Power Spring, Diaphragm and Flange Case Push-Rod

B. prevents skewing

C. reduces Power Spring stress

D. all of the above

Question #63 of 79

63. The __________ is not a standard feature on the MGM Brakes TR Model.

A. Integral Release Bolt

B. Floating Center Hole Shield

C. Multi-Lipped, Pressure Activated Push-Rod Seal

D. 8-gauge steel Non-Pressure Chamber

Question #64 of 79

64. The Upper Piston on the MGM Brakes TR Model, made from 360 Alloy
Aluminum, is fluted to prevent __________.

A. incorrect installation

B. counter rotation of the piston

C. binding and consequential brake drag

D. proper alignment of the release tool

Question #65 of 79

65. The MGM Brakes Model TR-T features __________ which prevents
contaminants from entering the spring chamber.

A. a Self-Cleaning Filter

B. a One-Way Check Valve

C. an External Breather Tube

D. a Rolling Diaphragm

Question #66 of 79

66. MGM Brakes heavy-duty Power Springs are __________.

A. inspected and rigorously tested by production lot

B. 100% statically inspected in processing to the coiler

C. spring steel, cold-rolled for greater strength

D. 100% magnaflux inspected in processing to the coiler

Question #67 of 79

67. Flange Case Push-Rods are constructed of __________.

A. stainless steel, flash coated for protection against wear

B. hard coated aluminum, Teflon® coated for lubrication

C. hardened brass, finished slightly porous to retain lubricants

D. ground, hard-coated aluminum for long center seal life

Question #68 of 79

68. The MGM Brakes Flange Case Push-Rod Seal is multi-lipped with wiping
edges and lube retention grooves and is held in position by __________.

A. the Center Case Push-Rod

B. a Retaining Ring

C. two Nylon Guides

D. two Brass Rings

Question #69 of 79

69. MGM Brakes uses __________ mounting studs and nuts for maximum load support.

A. special grade 8, heat-treated and plated

B. 3/4” US high tensil steel and zinc plated

C. grade 5, heat-treated and plated

D. 3/4” SAE, case hardened and pre-stressed

Question #70 of 79

70. The mounting studs in MGM Brakes Non-Pressure Housings are __________.

A. press fit and spot welded to the housing

B. press fit and staked into the housing

C. press fit and secured with Loctite® adhesive

D. machine fitted to the housing and spin welded

Question #71 of 79

71. The MGM Brakes Model TR-TS “Severe Service” Brake is totally epoxy coated
inside and out and ideal for use on vehicles hauling __________.

A. acids and liquid corrosives

B. salt and dry bulk chemicals

C. livestock and poultry

D. all of the above

Question #72 of 79

72. MGM Brakes “Heavy Duty” Spring Brakes feature a Power Spring with
__________ more force output at 1.25 inches of stroke.

A. 200 ft.-lbs.

B. 155 ft.-lbs.

C. 185 ft.-lbs.

D. 158 ft.-lbs.

Question #73 of 79

73. MGM Brakes Model LTR-T “Long Life” Spring Brakes feature __________.

A. Six (6) Year Limited Warranty

B. Integral Release Bolt

C. External Breather Tube

D. all of the above

Question #74 of 79

74. According to the National Highway Transportation Safety Administration (NHTSA), 3 Inch “Long Stroke” chambers provide __________.

A. improved parking efficiency

B. improved starting performance

C. increased reserve stroke

D. reduced slack adjuster life

Question #75 of 79

75. MGM Brakes Model TR-LP3 3-Inch “Long Stroke” Brakes feature the patented __________.

A. Integral Release Bolt design

B. internal Piston Rod Boot

C. Positive Alignment System (PAS)

D. epoxy-coated Clamp Band

Question #76 of 79

76. The MGM Brakes Magnum “Performance” Plus Spring Brake is _________
Spring Brake.

A. an air over hydraulic

B. a piston-type

C. a double-diaphragm

D. a remote mount

Question #77 of 79

77. All MGM Brakes “Steelhead” Service Chambers feature __________.

A. formed steel Pressure Caps

B. Center Hole Shields

C. formed steel, epoxy-coated Non-Pressure Chamber housings

D. all of the above

Question #78 of 79

78. MGM Brakes “Piggyback Plus” Kits include the Piggyback, __________.

A. Clamp Band and hardware

B. Diaphragm and installation instructions

C. Diaphragm and Clamp Band

D. Release Bolt, Washer and Nut

Question #79 of 79

79. 3 Inch “Long Stroke” Spring Brakes are identified by __________.

A. Square Inlet Ports

B. Trapezoidal Tags

C. Embossed Instructions

D. all of the above