Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same___________________?

Byadmin February 7, 2019August 20, 2021

Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same___________________?

A. Period increases
B. Period decreases
C. Group increases
D. Both ‘B’ & ‘C’

CHEMICAL ENGINEERING | Materials and Construction

Molybdenum steels containing 0.15 to 0.40% molybdenum

Question: Molybdenum steels containing 0.15 to 0.40% molybdenum
[A].

are prone to temper brittleness.
[B].
are used for automobile parts like gears, axle, shaft, bearings etc.
[C].
have very poor fatigue resistance.
[D].
do not contain nickel or chromium or both.

Answer: Option B

Explanation:

No answer description available for this question.

Read More Molybdenum steels containing 0.15 to 0.40% molybdenum
CHEMICAL ENGINEERING | Fluid Mechanics

Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.

Question: Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.
[A].

smaller than
[B].
larger than
[C].
same as
[D].
twice

Answer: Option A

Explanation:

No answer description available for this question.

Read More Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For an autocatalytic reactor, the suitable reactor set up is

Question: For an autocatalytic reactor, the suitable reactor set up is
[A].

P.F. reactors in series.
[B].
CSTR in series.
[C].
CSTR followed by P.F. reactor.
[D].
P.F. reactor followed by CSTR.

Answer: Option C

Explanation:

No answer description available for this question.

Read More For an autocatalytic reactor, the suitable reactor set up is
CHEMICAL ENGINEERING | Chemical Engineering Basics

Oxyacetylene reducing flame is used while carrying out welding on

Question: Oxyacetylene reducing flame is used while carrying out welding on
[A].

alloy steel
[B].
grey cast iron
[C].
mild steel
[D].
high carbon steel

Answer: Option C

Explanation:

No answer description available for this question.

Read More Oxyacetylene reducing flame is used while carrying out welding on
CHEMICAL ENGINEERING | Chemical Engineering Basics

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

Question: Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.
[A].

annealing
[B].
toughening
[C].
work hardening
[D].
tempering

Answer: Option A

Explanation:

No answer description available for this question.

Read More Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.
CHEMICAL ENGINEERING | Chemical Reaction Engineering

A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

Question: A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.
[A].

less than
[B].
equal to
[C].
more than
[D].
equal to or more than

Answer: Option D

Explanation:

No answer description available for this question.

Read More A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

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