1. What
is the expansion of PPE ?

Ans:
Personnel protective equipment.

2. List
out the PPE’s ?

Ans:
Safety shoes, coverall or Boiler Suite, safety goggles, helmet, ear plug and
hand gloves.

3. What
is the Expansion of HSE ?

Ans:
Health Safety and Environment.

4. What
is the expansion of SCBA ?

Ans:
Self-contained berating apparatus.

5. Who
can enter in to the  vessel, tower,
heaters or tanks ?

Ans:
Valid & authorized confined space entry holder.

6. Who
can work as attendant for confined space entry?

Ans:
Valid & Authorized confined space entry holder.

7. What
is the meaning of housekeeping?

Ans:
To remove unwanted materials from plant operating area.

8. When  you will use safety belt or safety harness ?

Ans:
Working at height.

9. What
is  the main thing required to start the
job?

Ans:
Permit and SMT instruction.

10. In
case of any HC leak or fire what will be your first action?

Ans:
Inform to SMT ( Supervisor of Maintenance ) immediately.

11.
What  are the things need to be checked before
working on scaffold?

 Ans: Green tag & Expiry date.

Questions Related To Equipment:

 1. List
out the equipment on which you have worked ?

Ans:
Heat exchanger, vessels, Distillation towers, Tanks, Heaters or Furnace,
filters and Fin fan coolers, Cooling Towers, Reactors

 2. List
out  any two type of pipe fitting?

 Ans:
Flange, elbow, nipple, coupling ,Tee , reducer.

 3. List
out any two type of valves?

 Ans:
Gate valve, Globe valve, Butterfly valve, plug valve, ball valve and needle
valve, Non Return Valve, Control Valve

4. In
which equipment trays were fitted?

 Ans:
Distillation Tower ( Column )

5. List
out at least two type of trays used in towers?

Ans:
Valve trays, bubble cap, Chimney tray and sieve trays.

6. In
which equipment demister pad is fitted?

 Ans:
Vessels and Towers.

7. List
out any two type of flange joint gasket?

 Ans:  Spiral wound metallic gasket, Graphite gasket
Teflon, Rubber gasket and RTJ- Ring Type Joint  gasket ( Oval or Octagonal)

8. What
is  the expansion of DP?

 Ans:
Dia penetrate test

9. Which
liquid  is being used for hydro test?

 Ans:
Water

10. Which
gas is being used for pneumatic test?

 Ans:
Nitrogen

11. What
is the expansion of NRV?

 Ans:
Non-Return Valve

12. What
is the expansion  of PSV and PRV?

 Ans:
PSV- Pressure safety valve & PRV- Pressure Relief Valve

13. List
out the fastener types?

Ans:
Bolt & Nuts, Stud bolts and Allen head bolts

14. List
out  any two  type of blinds?

Ans:
Spade blind, End blind and Modified blind.

15. List
out any two type of Pipe materials?

Ans:
Carbon Steel, Alloy Steel and Stainless Steel.

Questions Related To Tools / Units :

1. List
out the two common type of tools?

Answer: Open end spanner, Ring spanner, Combination
spanner, sledging spanner (Hammering spanner) and pipe wrench, Adjustable
spanner and screw driver.

2. List
out the measuring tools?

Ans:
Scale, Measuring tape, sprit leveler , Vernier caliper and Micrometer.

3. What  type of hammer material  should
be used in refinery?

Ans:  Brass

4. What
type of Buffing wheel material should be used in Refinery?

 Answer: Brass

5. Why
we use pressure gauge?

Ans:
To know the pressure

6. What
is the unit of pressure?

Ans:
Pounds per square inch (PSIG) or KG/ SQ.CM

7. What
is impact wrench?

Ans:
Used for tightening and loosening of bolt’s nut.

8. Impact
wrench operated by which gas?

Ans: Driven
by air

9. Which
equipment is  required for ventilation of
vessel and towers?

Ans:
Exhaust fan or Ejector