DRILLING - Practice Mode

1) Determine the drill size for finishing Dia 19 mm reaming hole (as per table under size 0.2 & over size 0.05 mm)?

18.75 mm 19.00 mm 19.25 mm 19.05 mm

Correct Answer: 18.75 mm

2) What is the reason if the drilled hole is larger than the drill size?

Drill is not sharp Feed rate is too high Cutting speed is too high Unequal angle of cutting edge

Correct Answer: Unequal angle of cutting edge

3) What is the term, the top surface joining the two sides of a thread?

Root Crest Flank Pitch

Correct Answer: Crest

4) What V denotes in grinding wheel specification 32A46H8V?

Bond Grade Abrasive Grain size

Correct Answer: Bond

Explanation:

In IP networking, the "class" of an IP address refers to the range of values in the address and how many bits are used to identify the network and the host. Class B addresses are IP addresses that are assigned to networks that have a large number of devices. Class B IP addresses use the first 16 bits to identify the network and the remaining 16 bits to identify the host.

The host bit in Class B address is 16 bits

This means that class B addresses have a range of 128.0.0.0 to 191.255.255.255, and there are 16,384 (214) possible networks and 65,534 (216-2) possible host addresses per network.

5) What type of abrasive wheel is used for grinding die steel?

Silicon carbide Green silicon carbide White aluminium oxide Brown aluminium oxide

Correct Answer: White aluminium oxide

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