Chemical Engineering Basics

Question: For hardening high alloy steel, it is to be heated slowly and uniformly to avoid
[A].

local hardening

[B].

scale formation

[C].

segregation

[D].

warpage

Answer: Option D

Explanation:

No answer description available for this question.

Question: Machinability of hard alloys and tool steels is improved by
[A].

spherodising

[B].

annealing

[C].

tempering

[D].

normalising

Answer: Option B

Explanation:

No answer description available for this question.

Question: Wrought iron does not have the
[A].

uniform strength in all directions.

[B].

ability to hold protective coating.

[C].

high ductility & corrosion resistance.

[D].

easily weldable characteristics.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.
[A].

0.8

[B].

7.8

[C].

200

[D].

10000

Answer: Option A

Explanation:

No answer description available for this question.

Question: Lead is poured into the joint between two __________ pipes.
[A].

mild steel

[B].

concrete

[C].

cast iron

[D].

asbestos cement

Answer: Option C

Explanation:

No answer description available for this question.

Question: On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the __________ of the input signal.
[A].

frequency

[B].

amplitude

[C].

damping

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: A __________ type pressure sensing element is commonly used in aneroid barometer.
[A].

capsule

[B].

bellow

[C].

spiral tube

[D].

flat diaphragm

Answer: Option A

Explanation:

No answer description available for this question.

Question: __________ strain gauge is the most sensitive sensing element for strain measurement.
[A].

photoelastic

[B].

semiconductor

[C].

wire resistance

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: LVDT used for displacement measurement is a/an __________ transducer.
[A].

passive

[B].

active

[C].

capacitive

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Working of linear variable differential transducer (LVDT) is based on the principle of variable
[A].

capacitance

[B].

resistance

[C].

mutual inductance

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.