D:-radius gauge
Correct Answer:- Option-C
Question68:-What is the use of screw pitch gauge?
A:-To determine the pitch
B:-To measure pitch
C:-To measure pitch diameter
D:-To measure major diameter
Correct Answer:- Option-A
Question69:-Where is the rocker arm fixed in universal surface gauge?
A:-On the spindle
B:-On the base
C:-On the snug
D:-Along with scriber
Correct Answer:- Option-B
Question70:-Which among the following is not the physical property of the metal?
A:-Conductivity
B:-Fusibility
C:-Elasticity
D:-Magnetic property
Correct Answer:- Option-C
Question71:-The ore of Aluminium is
A:-Hematite

D:-Pyrate
Correct Answer:- Option-B
Question72:-Soldering Iron are normally made of
A:-Iron
B:-Lead
C:-Copper
D:-Stainless Steel
Correct Answer:- Option-C
Question73:-The purpose of tempering a hardened steel component is
A:-Increasing its hardness
B:-Reducing its brittleness
C:-Increasing its ductility
D:-Increasing its elasticity
Correct Answer:- Option-B
Question74:-Arc blow is caused by
A:-Electronic disturbance
-Magnetic disturbance
C:-Electric disturbance
D:-Radio disturbance
Correct Answer:- Option-B
Question75:-In Carburizing flame, the Oxygen, Acetylene ratio is
A:-Oxygen more and Acetylene less
B:-Oxygen and Acetylene are equal
C:-Oxygen less and Acetylene more
D:-Only Acetylene
Correct Answer:- Option-C
Question76:-A closed vessel is termed as a steam boiler if
A:-Its pressure exceeds 10 bar
B:-Its volume exceeds 4.54 liters
C:-Its volume exceeds 22.75 liters
D:-Its Pressure exceeds 5 bar
Correct Answer:- Option-C
Question77:-In the fire tube boilers
A:-the water passes through the tubes
B:-the hot combustion gases pass through tubes