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SSW (Tokutei Ginou) Aviation (Aircraft Maintenance) Skill Test: Free Practice Questions

Free practice for the Specified Skilled Worker (i) skill test (Tokutei Ginou No. 1) in Aviation (Aircraft Maintenance). Answer 185 original questions in Japanese, like the real test, and read an English explanation after each one. Use it as your reviewer and mock test on your phone.

It is also called the SSW aviation test for aircraft maintenance, the aircraft mechanic test or the Tokutei Ginou koku exam.

Start practicing (free)

What you get

185 original practice questions: Academic 154 · Practical 31
Covers all 7 chapters of the test topics
Based on the JAEA (Japan Aeronautic Engineers’ Association) study texts “Basic Aircraft Skills (Fastening, Electrical Measurement)”, “Work Safety and Quality” and “Aircraft Overview”
Furigana (hiragana readings) on kanji
English translations and explanations
Mock test: 40 questions, 60 minutes
Free, no sign-up, made for phones

Test topics (7 chapters)

Fastening 1: Bolts, Nuts, Screws and Washers
Fastening 2: Torque, Safety Wire and Cotter Pins
Electrical Measurement (Multimeter)
Work Safety
Quality and Human Factors
Aircraft Overview 1: Electrical and Flight Control Systems
Aircraft Overview 2: Hydraulics, Compressed Air and Other Systems

The real test format

30 written questions and 10 judgment questions on fastening and electrical measurement. To pass the real test, you need 65% or more in each part, written and practical (here, our passing guide is 26 correct).

Official SSW test information

Try 5 sample questions

Questions are in Japanese with furigana, like the real test. The English translation is below each question. Tap “Show answer” to see the answer and explanation.

01Fastening 1: Bolts, Nuts, Screws and Washers

セルフ・ロッキング・ナットが使つかえる場所ばしょはどれですか。

English translation
Where can self-locking nuts be used?
1. 回転かいてんせず、いつも取とり外はずさない固定こていの部品ぶひん
  Fixed parts that do not rotate and are not usually removed
2. プーリーやレバーなど、回まわる力ちからを受うける部品ぶひん
  Parts that receive rotating force, such as pulleys and levers
3. 落おちるとエンジン・エア・インテークに入はいる所ところ
  Places where a dropped nut could enter the engine air intake
4. 飛行ひこうのたびに開あけ閉しめするアクセス・パネル
  Access panels opened and closed every flight
Show answer

Answer 1 回転かいてんせず、いつも取とり外はずさない固定こていの部品ぶひん — Fixed parts that do not rotate and are not usually removed

Explanation
They cannot be used where there is rotating force, where they may fall into the engine air intake, or on panels removed every time. They can be used on fixed parts.
02Fastening 2: Torque, Safety Wire and Cotter Pins

リミット式しきトルク・レンチの使つかい方かたとして、正ただしいものはどれですか。

English translation
Which is the correct way to use a limit-type torque wrench?
1. 値あたいをセットしたあと、ロックしないで使つかう。
  After setting the value, use it without locking.
2. 左ひだりネジも、右みぎネジ用ようのレンチで締しめてよい。
  Left-hand threads may be tightened with a right-hand wrench.
3. 締しめている途中とちゅうで、別べつのレンチにかえてよい。
  You may change to another wrench while tightening.
4. 値あたいをセットしたあと、必かならずロックして使つかう。
  After setting the value, always lock it before use.
Show answer

Answer 4 値あたいをセットしたあと、必かならずロックして使つかう。 — After setting the value, always lock it before use.

Explanation
With the limit type, always lock it after setting the value. It is also important not to mix up right-hand and left-hand thread wrenches and not to change to another wrench once you start.
03Electrical Measurement (Multimeter)

テスト・ピンを回路かいろに当あてたまま、レンジ切きり替かえノブを回まわしてよい。

English translation
You may turn the range selector knob while the test pins are touching the circuit.
1. ○
  True
2. ×
  False
Show answer

Answer 2 × — False

Explanation
When changing the range, always remove the test pins from what you are measuring first. Turning it while they are touching may break the meter.
04Work Safety

高たかい所ところで作業さぎょうをするとき、着つけるものとして正ただしい組くみ合あわせはどれですか。

English translation
When working in a high place, which is the correct combination to wear?
1. 耳栓みみせんとイアマフ
  Earplugs and earmuffs
2. 防毒ぼうどくマスクと保護ほごゴーグル
  Gas mask and safety goggles
3. 作業さぎょう用ようの手袋てぶくろだけ
  Only work gloves
4. ヘルメットと墜落ついらく制止せいし用よう器具きぐ
  Helmet and fall arrest equipment
Show answer

Answer 4 ヘルメットと墜落ついらく制止せいし用よう器具きぐ — Helmet and fall arrest equipment

Explanation
For work at height, wear a helmet and fall arrest equipment. As a rule, fall arrest equipment is the full harness type. Earplugs and gas masks protect the body from other dangers.
05Quality and Human Factors

十分じゅうぶんに注意ちゅういをしていれば、人ひとはエラーを起おこさない。

English translation
If people are careful enough, they do not make errors.
1. ○
  True
2. ×
  False
Show answer

Answer 2 × — False

Explanation
Incorrect. Everyone makes errors, no matter how careful they are. So rules are made assuming errors will happen, and systems to find them early are planned.

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