[ TOP ] +25 MECHANICAL FITTER INTERVIEW QUESTIONS ANSWERS
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[ TOP ] +25 MECHANICAL FITTER INTERVIEW QUESTIONS ANSWERSLast me niche PDF diya gya h jha se aap download kar sakte haiThis post deals with the top +25 most important questions answers being asked in the interview of general fitter, mechanical fitter and mechanical technician. we would suggest you to go through the full post for easily understand all the question answer. TOP +25 MECHANICAL FITTER INTERVIEW QUESTIONS ANSWERS | FITTER INTERVIEW QUESTIONS ANSWERS IN HINDI Let’s Start, Q-1) How many mm in one inch ? Ans- There are 25.4 mm in 1 inch. Q-2) What is the full form of P P E ? Ans- Full form of P P E is Personal Protective Equipment. Q-3) Mention at least 5 nos of PPE ? Ans- a) Coverall or Boiler suite
b) Safety Helmet
c) Safety shoe d) Safety goggle e) Ear plug Other PPE’s are Hand Gloves, Safety Harness, Nose mask or Dust mask, H2S Gas monitor, Face Shield. Q-4) Mention 5 different types of valves ? Ans- A) Gate Valve B) Globe valve C) Butter fly valve D) Ball valve E) Check valve or NRV i.e Non-Return Valve. Q-5) Mention Different types of heat exchanger? Ans- A) Fixed bundle type B) Floating head type C) U- Tube Bundle type D) Plate type E) Double pipe type F) Fin-fan type Q-6) Mention Different Types of Gasket ? Ans- A) CAF ( Compressed Asbestos Gasket ) b) Spiral wound metallic gasket c) RTJ ( Ring Type Joint ) Gasket d) PTFE (Polytetrafluoroethylene) Teflon e) Metal Jacketed Gasket f) Graphite Gasket Q-7) For cold work operation what types of tools will use in hazards area ? Ans- Non- Sparkable tools. Q-8) What is the difference between machine bolt and stud bolt ? Ans- Machine Bolt has a head on one side and nut on other side but a stud Bolt has nut on both side. Q-9) What is the Thumb Rule to calculate the spanner size for a given Bolt? Ans- 1.5 X Diameter of bolt. Q-10) What is the use of a pipe wrench ? Ans- So to tight and loose threaded pipe fittings we use pipe wrench. Q-11) Which gasket will use ina acid line? Ans- Rubber gasket or PTFE Gaskets are used in a acid line. Q-12) Which gasket will use in high temperature line ? Ans- Graphite gaskets are used in high temperature line. Q-13) What are the function of valves ? Ans- So answer is Valves are used for Isolation, Regulation and for special purpose. Q-14) what are the different types of flanges ? Ans- A) WNRF i.e, weld neck raised face flange B) Slip-on flange C) Socket weld flange D) Threaded flange E) Lap-joint flange F) Blind flange G) Reducing flange Q-15) Five main parts of gate valve ? Ans- A) Body B) Bonnet C) Stem D) Hand wheel E) Gland and gland packing Q-16) What are the different ratings of flange in normal use ? Ans- 150 # ( # read as a Pound so 150# read as 150 pound ) 300# 600# 900# 1500# 2500# Q-17) What is the purpose of blinding ? Ans- Blinding is used for Positive Isolation. Q-18) What is a spectacle blind ? Ans- Spectacle blind is a combination of spacer and spade. Q-19) For a vessel hydro-test where will we provide vent ? Ans- On the top side of vessel. Q-20) How we calculate hydro-test pressure ? Ans- Design pressure X 1.5 times Q-21) How we work at higher elevation ? Ans- By the help of scaffolding with green tag. Q-22) What are the steps for removing a valve from a live line ? A) De-pressurize the line then B) Isolation to be done then C) Draining should be done after that D) Blinding to be done and finally E) Removal of valve should be done by using proper tools. Q-23) For hot work in a pipe line what type of isolation is required ? Ans- we use positive isolation for hot work in a pipe line. Q-24) How we remove a floating tube bundle from a float type heat exchanger ? a) Inlet and outlet isolation and spading to be done then b) Draining and steaming to be done then c) Removal of both side channel head and floating head then finally d) Removal of tube bundle by the help of bundle puller or chain block to be done. Q-25)How many types of reducer used ? Ans- there are two types of reducer used a) Eccentric reducer and b)Concentric reducer
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