Question

Acetylene cannot be used safely at pressures greater than:

a) 103 Kpa (15 psi)
b) 172 Kpa (25 psi)
c) 310 Kpa (45 psi)
d) 552 Kpa (80 psi)
e) 15167 KPa (2200 psi)

Answer 1

Acetylene cannot be safely used at pressures greater than 103 Kpa (15 psi) due to the risk of explosive decomposition with sudden ignition.

Step-by-step explanation:

The question asks at what pressures acetylene cannot be used safely. Acetylene is a highly flammable and potentially unstable gas at high pressures; therefore, it cannot be safely used at pressures greater than 103 Kpa (15 psi). This is because at higher pressures, the gas can decompose explosively if there's a sudden ignition. For safety reasons, acetylene should always be handled with care and used within recommended limits.