Preheating before welding is done to____________________?

Byadmin February 10, 2019August 20, 2021

Preheating before welding is done to____________________?

A. Make the plate softer
B. Burn oil & grease sticking to plate surfaces
C. Avoid plate distortion
D. Prevent cold cracks

CHEMICAL ENGINEERING | Chemical Engineering Basics

Absolute zero pressure can be attained at a temperature of

Question: Absolute zero pressure can be attained at a temperature of
[A].

0°C
[B].
50°K
[C].
0°R
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More Absolute zero pressure can be attained at a temperature of
Chemical Engineering Basics

Often earing defects are found during deep drawing operation, because the __________________?

Often earing defects are found during deep drawing operation, because the __________________?

A. Surface finish of the sheet is poor
B. Sheet material has been given substantial spring back
C. Starting sheet has planer anisotropy due to its texture
D. Starting sheet has normal anisotropy due to its texture

Read More Often earing defects are found during deep drawing operation, because the __________________?
CHEMICAL ENGINEERING | Chemical Engineering Basics

The bulk modulus of a material with Poisson’s ratio of 0.5 is equal to

Question: The bulk modulus of a material with Poisson’s ratio of 0.5 is equal to
[A].

3 x Young’s modulus
[B].
Young’s modulus
[C].
infinity
[D].
zero

Answer: Option C

Explanation:

No answer description available for this question.

Read More The bulk modulus of a material with Poisson’s ratio of 0.5 is equal to
CHEMICAL ENGINEERING | Chemical Engineering Basics

__________ is used as a material of construction for the blade of power saw.

Question: __________ is used as a material of construction for the blade of power saw.
[A].

Wrought iron
[B].
Stainless steel
[C].
Mild steel
[D].
High speed steel

Answer: Option D

Explanation:

No answer description available for this question.

Read More __________ is used as a material of construction for the blade of power saw.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Number of electrons in the outermost orbit of a semi-conductor is

Question: Number of electrons in the outermost orbit of a semi-conductor is
[A].

2
[B].
4
[C].
6
[D].
8

Answer: Option B

Explanation:

No answer description available for this question.

Read More Number of electrons in the outermost orbit of a semi-conductor is
CHEMICAL ENGINEERING | Chemical Engineering Basics

A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.

Question: A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.
[A].

0.1
[B].
0.5
[C].
0.8
[D].
1

Answer: Option A

Explanation:

No answer description available for this question.

Read More A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.

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