The active materials on the positive and negative plates of a fully charged lead-acid battery are

If the first two statements are true, the third statement is :
I. Battery X lasts longer than Battery Y.
II. Battery Y doesn't last as long as Battery Z.
III. Battery Z lasts longer than Battery X.

A

true

B

false

C

[C. uncertain

Which of the following factors adversely affects the capacity of the leadacid battery ?

A

Temperature of surroundings

B

Specific gravity of electrolyte

C

Rate of discharge

D

All of the above

What is the correct count of negative plates with respect to positive plates in a battery?

A

Both positive and negative have the same number of plates

B

More positive plates when compared to negative plates

C

More negative plates when compared to positive plates

D

Have no relation between them

When the negative pole of one battery is connected to negative pole of other battery and positive pole to other pole, the batteries are said to be connected in-

A

Parallel

B

Series

C

Both

D

None

A three-phase full converter charges a battery from a three-phase supply of 230 V. The battery emf is 200 V and the internal resistance of the battery is 0.5 Ω. Find the value of the continuous current which is flowing through the battery if its terminal voltage is 210 V

A

10 A

B

20 A

C

0.5 A

D

25 A

In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, $$l$$ = Span of the spring, n = Number of plates, b = Width of plates and t = Thickness of plates)

A

$$\frac{{{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$

B

$$\frac{{3{\text{W}}l}}{{2{\text{nb}}{{\text{t}}^2}}}$$

C

$$\frac{{2{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$

D

$$\frac{{3{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$

In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if theyseem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements.
Statements:
I. Some cups are plates.
II. All spoons are blue.
III. No plates are spoon.
Conclusions:
I. Some cups are not spoon.
II. Some plates are not blue.
III. Some cups are not blue.
IV. Some blue are not plates.

A

Only conclusion (I), (III) and (IV) follow.

B

Only conclusion (II) and (IV) follow.

C

Only conclusion (II), (III) and (IV) follow.

D

Only conclusion (I) and (IV) follow.

A battery of 6 cells will show a drop of _____ volts from fully charged state to fully discharged state.

A

1.0

B

1.5

C

2.4

D

2.9

The number of positive plates in a battery has on its plates

A

One more than the negative plates

B

One less than the negative plates

C

Two less than the negative plates

D

Two more than the negative plates

Consider the given statement and which of the given assumptions is (are) implicit.
Statement:
The serials/soaps are a reason for developing negative tendencies in women. Assumptions :
1. Newspapers highlight the negative aspects first than the positive aspects.
2. The attention for negative aspects is much higher than positive aspects

A

Neither assumption I nor II is implicit

B

Only assumption II is implicit.

C

Only assumption I is implicit.

D

Both assumptions I and II are implicit.

The active materials on the positive and negative plates of a fully charged lead-acid battery are

Related Questions