Compared to a full leather welding jacket, a welding cape is _____.

Compared to a full leather welding jacket, a welding cape is _____.
 
  a. cooler
  b. warmer
  c. more protective
  d. more durable

---

[Ques. 2] How close should a high vacuum/low volume exhaust inlet be located to the source of welding fumes?
 
  a. 2 to 4 (5 to 10 cm)
  b. 6 to 8 (15 to 20 cm)
  c. 12 to 14 (30 to 36 cm)
  d. At least 12 feet (3.66 meters) away

---

[Ques. 3] Which of these metals has been linked to Parkinson's Disease?
 
  a. Beryllium
  b. Manganese
  c. Copper
  d. Carbon steel

---

[Ques. 4] Grounding of a welding machine usually involves _____.
 
  a. setting it on bare earth
  b. plugging it in to a three-prong receptacle
  c. plugging it in to a ground fault circuit interrupter
  d. connecting the machine's ground terminal to a known ground source

---

[Ques. 5] What concentration of oxygen, in percent by volume, is considered normal and safe to work in?
 
  a. Less than 6
  b. 6 to 16
  c. 19.5 to 21.5
  d. More than 23.5