Millwright Level1 Module 3 Fasteners and
Anchors Questions with Correct Answers
100% Pass
Unified national coarse(UNC) thread - CORRECT ANSWER -used for bolts,screws,nuts,and other
general purposes. Fasteners with UNC threads are commonly used for rapid assembly or
disassembly of parts and where corrosion or slight damage may occur
Unified national fine (UNF) thread - CORRECT ANSWER -used for bolts,screws,nuts,and other
applications where a finer thread for a tighter fit is desired
Unified National Extra Fine (UNEF) thread - CORRECT ANSWER -Used on thin-walled
tubes,nuts,ferrules and couplings
Class 3A and 3B - CORRECT ANSWER -provide a minimal clearance
Class 1A and 1B - CORRECT ANSWER -provide maximum clearance
Nominal size - CORRECT ANSWER -diameter of the fastener
Square thread - CORRECT ANSWER -strongest most useful of all
Higher quality of steel fasteners - CORRECT ANSWER -have the most marks on the head
Cap screw - CORRECT ANSWER -high quality assembles finished appearance
Set screws - CORRECT ANSWER -heat-treated steel is normally used to make
Anchors Questions with Correct Answers
100% Pass
Unified national coarse(UNC) thread - CORRECT ANSWER -used for bolts,screws,nuts,and other
general purposes. Fasteners with UNC threads are commonly used for rapid assembly or
disassembly of parts and where corrosion or slight damage may occur
Unified national fine (UNF) thread - CORRECT ANSWER -used for bolts,screws,nuts,and other
applications where a finer thread for a tighter fit is desired
Unified National Extra Fine (UNEF) thread - CORRECT ANSWER -Used on thin-walled
tubes,nuts,ferrules and couplings
Class 3A and 3B - CORRECT ANSWER -provide a minimal clearance
Class 1A and 1B - CORRECT ANSWER -provide maximum clearance
Nominal size - CORRECT ANSWER -diameter of the fastener
Square thread - CORRECT ANSWER -strongest most useful of all
Higher quality of steel fasteners - CORRECT ANSWER -have the most marks on the head
Cap screw - CORRECT ANSWER -high quality assembles finished appearance
Set screws - CORRECT ANSWER -heat-treated steel is normally used to make