Density is defined as:
A) The weight at standard conditions. B) The volume at standard conditions.
C) Volume divided by weight. D) Weight divided by volume.
D
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Which plate(s) require J-groove joint preparation based on the welding symbol shown in Figure 2?
a. Plate A
b. Plate B
c. Both plate A and B
Which of the following statements about roofing panel nails is not true?
a. They have either helical or plain shanks. b. They are shorter and thicker than common roofing nails. c. They have a washer that serves as a waterproofing seal. d. They are used on fiberglass roofing panels.
Supply voltage regulation of Vcc for commercial ICs must be ________
A) 5 V plus or minus 5% B) 5 V plus or minus 10% C) 7 V plus or minus 10% D) 7 V plus or minus 5%
What is the air pressure regulated at on a typical truck or trailer air suspension?
A. 60 psi (4.1 bar) B. 90 psi (6.2 bar) C. 125 psi (8.6 bar) D. chassis system pressure