Engineering Chemistry I Mock Test 10

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Question 1 of 10

1. Which of the following is mono-functional?

Momethyl silicon chloride

Dimethyl silicon chloride

Tetramethyl silicon chloride

Trimethyl silicon chloride

Question 1 of 10

Question 2 of 10

2. Select the incorrect statement from the following option.

Core material should be heavy-weight and low corrosion resistance

Sandwich panels consist of two stronger outer sheets separated by a layer of less dense core material

Laminar composites consist of 2-D sheets that are stacked and subsequently cemented together

The stiffness of the sandwich panel increases as the core thickness increases

Question 2 of 10

Question 3 of 10

3. The exhausted anion exchange column is regenerated by passing a solution of ____________

Conc. NaOH

Dil. NaOH

Dil. KOH

Conc. KOH

Question 3 of 10

Question 4 of 10

4. Silicones have good electrical insulation because they are less stable to heat than organic polymers.

True

False

Question 4 of 10

Question 5 of 10

5. Which of the following is an application of glass-fiber reinforced composites?

Design of ships

Conveyor belts

Adhesives

Automotive parts

Question 5 of 10

Question 6 of 10

6. The solvent used in the preparation of butyl rubber is ____________

Methyl chloride

Methyl halide

Methyl sulphide

Methyl iodide

Question 6 of 10

Question 7 of 10

7. The proportion of momethyl silicon chloride determines the amount of cross-linking that can be obtained in polymerisation.

False

True

Question 7 of 10

Question 8 of 10

8. During the polymerisation of polyaniline, the sequence of the colour change is ____________

Copper tint >> blue green >> green >> light blue

Blue green >> green >> light blue >> copper tint

Green >> copper tint >> blue green >> light blue

Light blue >> blue green >> copper tint >> green

Question 8 of 10

Question 9 of 10

9. Select the incorrect statement from the following option.

Conductive element filled polymer are generally high in cost

Conductive element filled polymer possess good bulk conductivity

Conductive element filled polymer are light in weight

Conductive element filled polymer are mechanically durable and strong

Question 9 of 10

Question 10 of 10

10. The substances which are capable of uniting two other materials together by adhering strongly to the surface of both are called ____________

Composites

Biodegradable polymers

Adhesives

Organic conducting polymers

Question 10 of 10