Chemical Engineering Basics MCQs

Question 1

Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.

Accepted Answer

Any

Answer

Horizontal

Answer

Vertical

Answer

Inclined

Question 2

An example of unsteady non uniform flow is the flow of liquid under pressure through a

Accepted Answer

Tapering pipe at either decreasing or increasing flow rate

Answer

Tapering pipe at constant flow rate

Answer

Long pipeline of constant diameter

Answer

None of these

Question 3

Main alloying element in Elinvar used in precision instruments, hair springs for watches etc. is

Accepted Answer

Nickel

Answer

Chromium

Answer

Zinc

Answer

Aluminium

Question 4

Which of the following if present in iron ore, enhances its value?

Accepted Answer

Lime & Magnesia

Answer

Alumina

Answer

Alkali oxide

Answer

None of these

Question 5

Annealing ofwhite cast iron produces __________ iron.

Accepted Answer

Malleable

Answer

Grey

Answer

Nodular

Answer

Spheroidal

Question 6

__________ of grey cast iron produces white cast iron.

Accepted Answer

Rapid heating

Answer

Tempering

Answer

Rapid cooling

Answer

Slow cooling

Question 7

Which of the following pairs is not correctly matched?

Accepted Answer

Uranium - 233 : Fertile material

Answer

Bindingenergy : Mass defect

Answer

Scattering : Absorption cross-section

Answer

Number of nucleons : Mass number

Question 8

Speisses is a mixture of the following:

Accepted Answer

Arsenides of heavy metals

Answer

Antimonides of heavy metals

Answer

Arsenides & antimonides of heavy metals

Answer

Iron, cobalt and nickel

Question 9

LVDT used for displacement measurement is a/an __________ transducer.

Accepted Answer

Passive

Answer

Active

Answer

Capacitive

Answer

None of these