Mention the types of heaters?

1- Vertical 1- cylindrical

2- Horizontal or 2- box

Mention types of flow in pipes?

1- Laminar ----- steady flow ----------------- Re>25002- Turbulent ------------------- unsteady flow ----------- Re<2500

Types of heat transfer

1- Conduction (solids) 2-radiation 3- convection (fluids)

Mention types of tower trays?

1- Bubble cap trays 2- sieve trays2- Valve trays

What KMTD mean?(Answered before)

Mention two types of gas dehydration?

1- Chemical solvents by TEG2- Molecular sieves

Mention components of triangle of fire?

1- Spark 2- oxygen 3- fuel

Mention two instruments used in pipelines?

1- Thermometer temp.2- Manometer or gauge---------- pressure3- Flow meter

API means and mention its relation with SpGr?

American petroleum institute

API=141.5/spgr – 131.5

And it is used to evaluate crude oil

Mention first law of thermodynamics?

The rate of heat transfer to a system minus the rate at which the system does work equals the rate at which the energy of the system is changing.

Q1-2 – W = ∆U1-2

Q – W = ( الرموز عارف حد لو

عليها يقول )

Mention Bernoulli equation?

, وتكتب ايه على بيدل رمز كل اكتب معادلة اى تكتبو لما ياجماعة بالكم وخلىالاااااازم الوحدات

V12/2g + P1/δ + h1 = v2

2 + P2/ δ +h2

V velocity m/sec

G = 9.8 m/sec2

P pressure N/m2

δ =g*𝓹h height m

Put true or false

1- Centrifugal pump can’t operate with closed suction valve ( true)

2- Piston displacement can’t operate with closed delivery valve ( true)

3- Standard conditions are 14.7 Psia& 32 o F false ( 60 o F)