About _____ named species of insects are harmful to humans
a. 4,000 c. 8,000
b. 6,000 d. 10,000
D
You might also like to view...
What is the material that breaks the water into smaller droplets as it falls through the cooling tower?
A. Fill B. Louvers C. Drift eliminators D. Water distribution header
Which of the following statements about the use of turnbuckles is correct?
a. Hook-and-hook turnbuckles are preferred over eye-and-eye turnbuckles for rigging. b. Turnbuckles are used to adjust the length of rigging connections. c. Turnbuckles are best tightened with a pipe wrench at least 24" (61 cm) in length. d. When using multi-legged slings or hitches, two turnbuckles should be used on each leg.
____ windows have sashes that slide horizontally in separate tracks located on the header jamb and sill.
a.Casement b.Single-hung c.Sliding d.Double-hung
Which is the correct formula for finding power?
A) P = V × I B) P = V2 ÷ R C) P = I2 × R D) all of these