Chemical Engineering Mcqs

Thermocouple is suitable for measuring_________________?

• (A)  Liquid temperatures only
• (B)  Very high temperatures only
• (C)  Very low temperatures only
• (D)  Both high and low temperatures

Answer

Submitted By :Ali Uppal

For the time domain function f(t) = t, the Laplace transform of ∫0 t f(t) dt is given by___________________?

• (A)  1/2 S3
• (B)  2/S3
• (C)  1/S3
• (D)  2/S2

Answer

Submitted By :Ali Uppal

Phase margin is equal to_______________?

• (A)  180° – phase lag
• (B)  Phase lag – 180°
• (C)  Phase lag + 180°
• (D)  Phase lag + 90°

Answer

Submitted By :Ali Uppal

Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic ?

• (A)  CO2
• (B)  O2
• (C)  NO
• (D)  NO2

Answer

Submitted By :Ali Uppal

A non-linear chemical system is exemplified by a/an_________________?

• (A)  Isothermal CSTR
• (B)  Mixer
• (C)  Non-isothermal CSTR
• (D)  None of these

Answer

Submitted By :Ali Uppal

Radioactive decay of a material involves a _____________ order reaction?

• (A)  Third
• (B)  Second
• (C)  First
• (D)  Zero

Answer

Submitted By :Ali Uppal

Out of the following places, a nuclear power plant is not located at______________?

• (A)  Talcher (Orissa)
• (B)  Kaiga (Karnataka)
• (C)  Rawatbhata (Rajasthan)
• (D)  Kalpakkam (Tamilnadu)

Answer

Submitted By :Ali Uppal

Unit of radioactivity is_________________?

• (A)  Barn
• (B)  Fermi
• (C)  Angstrom
• (D)  Curie

Answer

Submitted By :Ali Uppal

Liquid metal (e.g., molten sodium) is preferred as a coolant in case of a/an ______________ reactor?

• (A)  Homogeneous
• (B)  Graphite moderated
• (C)  Fast breeder
• (D)  Enriched uranium (3% U-235) fuelled

Answer

Submitted By :Ali Uppal

The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then____________?

• (A)  3/4th of it will disintegrate in two months
• (B)  It will completely disintegrate in two months
• (C)  It will completely disintegrate in four months
• (D)  1/8th of it will remain intact at the end of four months

Answer

Submitted By :Ali Uppal