Question

multiple choice choose the one alternative that best completes the statement or answers the question.

1. before connecting any power tool to a power source, it is critical to ______

a. make sure the tool has been cleaned and oiled
b. ask your supervisor for permission
c. confirm the power switch is set to off
d. confirm the condition of all the tools attachments

1. when using power tools, never engage the ______.

a. locking spring
b. booster
c. bit shank
d. trigger lock

1. before replacing parts such as bits, blades, or discs on any tool, it is important to ______.

a. disconnect the power source
b. recharge the tools battery
c. polish it with fine steel wool
d. check the tools oil level

1. the part of a drill that holds the drill bit in place is called the ______.

a. auger
b. ram
c. shank
d. chuck

1. when using an appropriate bit, variable speed drills can be used like a(n) ______.

a. hammer drill
b. impact driver
c. screwdriver
d. mag drill press

1. before using a hammer drill or rotary hammer to drill into concrete, it is important to ______

a. install a flying debris guard on the drill chuck
b. review silica exposure standards
c. confirm the location of coworkers
d. spray down the concrete surface with water

Explanation:

Question 1

To avoid accidental startup and ensure safety when connecting a power tool to a power source, the power switch must be off. Cleaning/oiling (a) is for maintenance, asking permission (b) is not a safety-critical step here, and checking attachments (d) is done before use but not specifically before connecting to power. So the correct answer is c.

When using power tools, engaging the trigger lock (d) is a safety feature to prevent accidental operation, so you should never engage it (wait, no—actually, trigger lock is used to lock the trigger, but the question says "NEVER engage"—wait, maybe a typo, but among options, trigger lock is the one related to tool safety where engaging it improperly could be wrong. Locking spring (a) is not a typical power tool component to avoid engaging, booster (b) is for power, bit shank (c) is part of the bit. So the correct answer is d.

Before replacing parts on a tool, disconnecting the power source (a) is crucial for safety to prevent electric shock or accidental tool operation. Recharging battery (b) is unrelated, polishing (c) is for finishing, checking oil (d) is for maintenance not related to part replacement. So the correct answer is a.

Answer:

c. confirm the power switch is set to OFF

Question 2