Level of electrolyte in a cell should be _____ the level of plates

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

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

Following will occur if level of electrolyte falls below plates

A

capacity of the cell is reduced

B

life of the cell is reduced

C

open plates are converted to lead sulphate

D

all above

When the lead-acid cell is fully charged, the electrolyte assumes _____ appearance

A

dull

B

reddish

C

bright

D

milky

When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as ________ double cover butt joint.

A

Single riveted

B

Double riveted

C

Multi riveted

D

None of these

When two plates are butt together and riveted with cover plates with two rows of rivets, the joint is known as

A

Lap joint

B

Butt joint

C

Single riveted single cover butt joint

D

Double riveted double cover butt joint

When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as _______ double cover butt joint.

A

Single riveted

B

Double riveted

C

Both (A) and (B)

D

None of these

Electrolyte used in a lead-acid cell is

A

NaOH

B

Only H₂SO₄

C

Only water

D

Dilute H₂SO₄

Specific gravity of electrolyte in Edison cell is

A

0.8

B

0.95

C

1.1

D

1.21

During the idle period of the battery, strong electrolyte tends to change the active material of the cell into

A

PbO₂

B

PbSC₄

C

PbO

D

Pb

Electrolyte used in an Edison cell is

A

NaOH

B

KOH

C

HCl

D

HNO₃

Level of electrolyte in a cell should be _____ the level of plates

Related Questions