$31.\_\_\_\_\_\_\_\_\_\_$ is the trade name assigned to a non$-$ferrous cast alloy composed of cobalt, chromium & tungsten. $-$ A$)$ Stellite $-$ B$)$ High$-$speed steel $-$ C$)$ Cermet $-$ D$)$ Alnico$32.\_\_\_\_\_\_\_\_\_\_$ is used as a material of construction for the blade of a power saw. $-$ A$)$ Wrought iron $-$ B$)$ Stainless steel $-$ C$)$ Mild steel $-$ D$)$ High$-$speed steel$33.\_\_\_\_\_\_\_\_\_\_$ is used for tying the steel columns to concrete foundation. $-$ A$)$ Grouting $-$ B$)$ Eyebolt $-$ C$)$ Anchor bolts $-$ D$)$ Refractory castables$34.\_\_\_\_\_\_\_\_\_\_$ joint is mostly used for joining pipes carrying water at low pressure. $-$ A$)$ Nipple $-$ B$)$ Socket $-$ C$)$ Union $-$ D$)$ Bell and spigot