Chapter 4 UREs

Question 0

59. (017) What is the period called in which the critical functions of the launch facility (LF) are maintained in a state of readiness without dependence on normal environment control support?

Answer 0

*A. Emergency survival
B. Extended survival
C. Hardness-critical
D. Mission-critical

Question 1

60. (017) What supplies power to the LF during extended survival period?

Answer 1

A. Diesel batteries
*B. Diesel-generator
C. Commercial power
D. Emergency batteries

Question 2

61. (017) Which is an example of a hardness-critical item that protects other equipment performing a hardness-critical function?

Answer 2

*A. Shock isolators
B. Re-entry system
C. Ordnance interlocks
D. Cryptographic equipment

Question 3

62. (018) What are two sources of ground shock from a nuclear explosion?

Answer 3

A. Direct-induced and thermal-induced
*B. Direct-induced and air blast-induced
C. Indirectly-induced and thermal-induced
D. Indirectly-induced and air blast-induced

Question 4

63. (018) A large percentage of the energy from a nuclear explosion results in

Answer 4

A. electromagnetic pulse
B. nuclear radiation
*C. air blast effects
D. heat and light

Question 5

64. (018) Acoustic hardness pertains to the protection of sensitive equipment from

Answer 5

A. ground shock
B. under pressures
*C. high noise levels
D. resonant frequencies

Question 6

65. (018) Which characteristic does not greatly influence electromagnetic pulse (EMP) at the launcher and LER liner?

Answer 6

*A. relative humidity
B. Earth conductivity
C. Conduit shielding
D. Geometry

Question 7

66. (018) What term is used to describe when a nuclear weapon is detonated above the atmosphere?

Answer 7

A. Air burst
B. Space burst
*C. High-altitude burst
D. Electromagnetic burst

Question 8

67. (019) The missile suspension and alignment system protects the missile from

Answer 8

A. air blast
B. heat and light
C. over pressures
*D. ground shock

Question 9

68. (019) The launcher closure provides protection from nuclear radiation by its mass and the boron content of the

Answer 9

A. soil
B. steel
*C. concrete
D. insulation

Question 10

69. (019) What are the primary elements of the debris collection system?

Answer 10

A. Five collector bins and supporting cables
*B. Six collector bins and supporting cables
C. Five collector bins and adapter rings
D. Six collector bins and adapter rings

Question 11

70. (020) What facility is not hardened against a ground shock environment?

Answer 11

A. Wing III LCC
*B. Wing I LSB
C. Wing III/V LSB
D. Wing V LCEB

Question 12

71. (020) Where are the air compressor assemblies for both Wing 3 and 5 LCC shock isolation systems located?

Answer 12

A. LCC
B. LSB
C. LCSB
*D. LCEB

Question 13

72. (021) What provides EMP isolation between the launch tube and LER?

Answer 13

A. Launcher closure door
B. Support equipment building
C. Lightning protection system
*D. Rattlespace screen and steel bellows

Question 14

73. (021) What is installed on all conductors at their point of entry into the launcher to suppress any high-level EMP voltages (greater than 2-kilovolts)?

Answer 14

A. Diode surge limiters
B. Circumvention/reset systems
*C. ESA
D. Shunt gaseous discharge devices

Question 15

74. (022) Prior to replacing or repairing bonding or grounding connections, what should you do first?

Answer 15

A. Strip off all conductive finishes
B. Remove cadmium or zinc plating
C. Clean area so it is slightly smaller than the contact area
*D. Remove all dirt, oil, or grease from the areas to be bonded

Question 16

75. (023) In regard to hardness preservation principles, what are the three types of equipment installations?

Answer 16

A. Hard-mounted, shock-mounted, and strap-mounted installations
B. Strap-mounted, shock-mounted, and surface installations
*C. Hard-mounted, shock-mounted, and surface installations
D. Strap-mounted, hard-mounted, and surface installations

Question 17

76. (023) Who can provide technical assistance for all installation hardware or maintenance requirement not specifically covered in TOs or CEMs?

Answer 17

A. Nuclear Weapons Center
B. Maintenance Team Chief
*C. Ogden Air Logistics Center
D. Missile Combat Crew Commander

Question 18

77. (024) Nonmetallic insert nuts should not be used on a bolt when the heat could exceed

Answer 18

A. 215 degree Centigrade
*B. 250 degree Centigrade
C. 265 degree Centigrade
D. 280 degree Centigrade

Question 19

78. (024) In aerospace hardware, what items can also be used with a drilled clevis bolt?

Answer 19

*A. Plain nut with a check nut
B. Plain washer with a cotter pin
C. Castle shear nut with safety wire
D. Flat washer with a self-locking nut

Question 20

79. (024) What are two classifications of screws used on missiles?

Answer 20

A. Machine and fillister head
B. Machine and button head
*C. Structural and machine
D. Structural and flathead

Question 21

80. (024) Which is the most practical and probably the most common method of securing fasteners?

Answer 21

A. Locknuts
*B. Lock wire
C. Cotter pins
D. Self-locking nuts

Question 22

81. (024) Which securing device is most commonly used to hold a castle nut on a drilled bolt or stud?

Answer 22

A. Locknuts
*B. Cotter pins
C. Lock washer
D. Self-locking nuts

Question 23

82. (025) What percentage of the RFI gasket width must be in contact with the hatch cover and hatch frame on the ESA vault at any given point?

Answer 23

A. 100 percent
*B. 75 percent
C. 25 percent
D. 10 percent

Question 24

83. (025) What type of RFI gasket can be rebent to its original shape?

Answer 24

*A. Brass finger spring compression material
B. Preformed woven stranded wire material
C. Composite-elastomer, metallic-fibered
D. RFI band

Question 25

84. (025) What action is required if bubbling of the electrodag conductive coating is observed?

Answer 25

A. No action is required
*B. Remove the electrodag conductive coating for inspection
C. Immediately contact the MMOC
D. Verify surface bubbling does not exceed one-third the width of the electrodag