Determine the correctness or otherwise of the following Assertion (a) and Reason (r).<br>Assertion (a): During welding of aluminium alloys by the gas tungsten arc welding process, direct current reverse polarity (DCRP) mode is used.<br>Reason (r): DCRP facilitate breaking up of the oxide film on the workpiece surface.

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: MTT assay is used to determine cell viability based on the principle of color formation by DNA fragmentation.
Reason: MTT assay is used to determine cell viability based on the color development by converting tetrazolium soluble sail to insoluble salt.

A

Both (A) and (R) are true and (R) is the correct reason for (A)

B

Both (A) and (R) are true and (R) is not the correct reason for (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Determine the corrections or otherwise of the following assertion and reason : Assertion : Typically control surface are tapered with same taper ratio as primary component such as wing or tail Reason: Control surface is used to provide trim control to the A/C and are true and is the correct reason for b) Both and are true but is not the correct reason for c) Both and are false d) is false but is true

A

and reason : Assertion : Typically control surface are tapered with same taper ratio as primary component such as wing or tail Reason: Control surface is used to provide trim control to the A/C ] Both and are true and is the correct reason for

B

A

C

A

D

A

Determine the correctness or otherwise of the following Assertion (a) and Reason (r).
Assertion: During rolling, front tension and (or) back tension are (is) employed to decrease rolling load.
Reason: Roll pressure decreases due to lowering of flow stress as a result of front tension/back tension.

A

a is false but r is true

B

a is true and r is also true, but r is not the reason for a

C

a is true and r is also true, and r is the reason for a

D

a is true but r is false

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: Somatic embryogenesis in plants is a twostep process comprising of embryo initiation followed by embryo production.
Reason: Embryo initiation is independent of the presence of 2, 4-dichlorophenoxyacetic acid, whereas embryo production requires a high concentration of 2, 4-dichlorophenoxyacetic acid.

A

Both (A) and (R) are true and (R) is the correct reason for (A)

B

Both (A) and (R) are true and (R) is not the correct reason for (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Determine the corrections or otherwise of the following assertion and reason : Assertion : Most of the tails are using symmetric airfoils. Reason: Tail control has two primary control surface. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true

A

and reason : Assertion : Most of the tails are using symmetric airfoils. Reason: Tail control has two primary control surface. ] Both and are true and is the correct reason for

B

A

C

A

D

A

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: The association constant in water for the G-C base pair is three times lower than that for the A-T base pair.
Reason: There are three hydrogen bonds in the G-C base pair and two in the A-T base pair.

A

Both (A) and (R) are true and (R) is the correct reason for (A)

B

(A) is false, but (R) is true

C

Both (A) and (R) are false

D

Both (A) and (R) are true and (R) is not the correct reason for (A)

Determine the correctness or otherwise of the following Assertion (A) and Reason (R).
Assertion: An antigen recognized by one immunoglobulin subtype is not recognized by any other subtype.
Reason: Immunoglobulin subtypes differ from each other both in the variable and in the constant regions.

A

Both (A) and (R) are true and (R) is the correct reason for (A)

B

Both (A) and (R) are true but (R) is not the correct reason for (A)

C

Both (A) and (R) are false

D

(A) is true but (R) is false

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: A very low amount of inhibitor can act as an activator for allosteric enzymes.
Reason: Allosteric enzymes follow Michaelis-Menten kinetics.

A

Both (A) and (R) are true and (R) is the correct reason for (A)

B

Both (A) and (R) are true but (R) is not the correct reason for (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: Cytoplasmic male sterility (cms) is invariably due to defect(s) in mitochondrial function.
Reason: cms can be overcome by pollinating a fertility restoring (Rf ) plant with pollen from a non cms plant.

A

Both (A) and (R) are true and (R) is the correct reason for (A)

B

Both (A) and (R) are true and (R) is not the correct reason for (A)

C

(A) is false but (R) is true

D

(A) is true but (R) is false

Determine the correctness or otherwise of the following Assertion (A) and Reason (R).
Assertion: Cell mass yield of a methylotrophic yeast is more on methanol compared to glucose.
Reason: Methanol has a greater degree of reductance compared to glucose.

A

Both (A) and (R) are correct and (R) is the correct reason for (A)

B

(A) is correct, (R) is false

C

(A) is false, (R) is correct

D

Both (A) and (R) are correct but (R) is not the correct reason for (A)