Question 1

If the HOA switch is set in the off position, current can flow to the coil of the starter.&#10;A)precalibrated&#10;B)continuous&#10;C)only emergency&#10;D)no

Accepted Answer

When the HOA switch is set to the off position, it means that the starter is disconnected from the power source and no current can flow to the coil of the starter. If the HOA switch is in the off position, no current can flow to the coil of the starter.

Question 2

The selector switch is controlled by the push button sleeve.&#10;A)turning&#10;B)pushing&#10;C)flipping a lever on&#10;D)pulling

Accepted Answer

The selector switch is typically controlled by turning the switch to the desired position. Pushing, flipping, or pulling the switch may also be involved depending on the design of the switch, but turning is the most common method of controlling the selector switch. The selector switch is controlled by turning the push button sleeve.

Question 3

If set in the position, the coil is connected directly to the power line and the motor will run continuously.&#10;A)auto&#10;B)on&#10;C)hand&#10;D)off

Accepted Answer

C

Question 4

A hand-off automatic switch may be a stand alone control or incorporated into a start-stop push button station.

Accepted Answer

A hand-off automatic switch can be used as a stand alone control or as part of a start-stop push button station. A hand-off automatic switch can be standalone or integrated into a start-stop push button station.

Question 5

When the switch is set in the hand position, contacts 1 and 2 are closed, and contacts 3 and 4 are .&#10;A)in auto position&#10;B)open&#10;C)disconnected&#10;D)also closed

Accepted Answer

Contacts 1 and 2 being closed is the only relevant information in this question. Nothing is mentioned about contacts 3 and 4 being connected to anything or serving any purpose, so it is safest to assume they are open when the switch is in the hand position. When the switch is set in the hand position, only contacts 1 and 2 are closed. Contacts 3 and 4 remain open.

Question 6

Selector push buttons cannot combine the operation of a selector switch and push button in the same unit.

Accepted Answer

Selector push buttons are designed to combine the functionality of a selector switch and a push button in a single unit, allowing for both selection among multiple options and actuation.

Question 7

Selector switches often contain multiple sets of contacts.

Accepted Answer

Selector switches often have multiple sets of contacts to allow for more complex control circuits. Selector switches can contain multiple sets of contacts that can be used for different functions or positions.

Question 8

A C on an HOA switch indicates that the contacts are closed and the O indicates that they are open.

Accepted Answer

The opposite is true: C on an HOA switch indicates that the contacts are closed, while O indicates that they are open. A C on an HOA switch stands for Hand-Off-Auto switch, which is used to control the operation of a motor. The C stands for "Controlled" mode, which means the motor is controlled by the switch. The O stands for "Off" mode, which means the motor is turned off. Therefore, a C does not indicate that the contacts are closed and an O does not indicate that they are open.

Deck 19: Hand-Off Automatic Controls