Riddles

Questions with answers worth the wait. 250 jokes.

What do the dead zone and Monday morning have in common?

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You can't see anything during either one.

Joke #22

Why did the second back wall echo feel like a bad sequel?

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Same story, twice the travel, half the energy.

Joke #27

Why did the receiver ask the pulser for some space?

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Every time the pulser fired, the receiver needed a moment to recover.

Joke #28

Why did the delay line get promoted?

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It was the only one willing to wait around for the signal to come back.

Joke #29

Why is steel plate such a good listener?

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It echoes everything you send it, right back from the back wall.

Joke #31

Why do eddy current technicians love heat exchangers?

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Hundreds of tubes, one setup, and a support plate to blame.

Joke #107

What does an eddy current technician say about a tube missing a chunk of wall?

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'Well, that's one way to get a signal.'

Joke #113

What did the steel say to the air?

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We have nothing in common. Every word I send you comes right back.

Joke #161

Why did the beam bend as it entered the slower material?

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It was looking for a better angle on the situation.

Joke #162

Why does low-frequency sound go the distance?

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It doesn't sweat the small stuff, and it can't see it anyway.

Joke #163

How long does an Iridium-192 source take to drop to a quarter of its strength?

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Two half-lives, about five months, or one project approval.

Joke #164

Why did the magnet win every argument?

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It had a strong field and kept pulling everyone to its side.

Joke #165

Why do the front-row students get the most attention from the lecturer?

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Inverse square law.

Joke #166

What did the shear wave say to the longitudinal wave?

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Stop pushing me. I'd rather move sideways.

Joke #167

Why does sound travel faster in steel than in air?

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The neighbors are packed so tightly they can't help passing it on.

Joke #168

Why did the beam quit in the coarse-grained casting?

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Too many boundaries and nobody listening.

Joke #169

Why did the Iridium-192 source refuse to make long-term plans?

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Its commitments were cut in half every 74 days.

Joke #220

Why would you never play cards against a sheet of film?

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It holds a latent image, and it shows its hand the minute it's developed.

Joke #221

How many radiographers does it take to change a lightbulb?

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None. The darkroom only has a safelight, and they like it that way.

Joke #225

Why did the radiographer think the film was haunted?

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A pale B showed up on it. It was just backscatter saying boo.

Joke #226

Why do prods need firm contact before the current comes on?

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Nobody wants a relationship that starts with sparks and ends in a burn mark.

Joke #302

What do you call a part that was washed too hard after the penetrant?

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Clean, confident, and completely missing the point.

Joke #355

What does a penetrant inspector do during dwell time?

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Pretends to be calm while everyone asks if it's ready yet.

Joke #356

What does fluorescent penetrant say to a skeptical inspector?

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Turn off the lights and I'll show you.

Joke #357

How do you tell a crack from a fingerprint on a penetrant part?

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The fingerprint comes with a swirl and an apology.

Joke #358

Why did the inspector send the part back through pre-cleaning?

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The penetrant couldn't get past the grease at the door.

Joke #359

Why did the black light get invited to every inspection party?

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It brings out the best in everything, and the worst in lint.

Joke #360

Why did the inspector wear gloves during penetrant inspection?

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Because fingerprints are the most reliable nonrelevant indication.

Joke #361

Why did the inspector bring a mirror to the pipe rack?

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She wanted to see the other side of the issue.

Joke #412

How many inspectors does it take to check a weld in a dark tank?

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Three: one to hold the light, one to hold the mirror, and one to say it looked better last time.

Joke #415

What's the difference between "looks fine" and "is fine"?

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About twelve inches and a flashlight.

Joke #417

What's an inspector's favorite kind of lighting?

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Raking light, because every flaw casts a shadow of doubt.

Joke #418

Why do inspectors carry a small mirror and a magnet?

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One finds the corners. The other finds out what they're made of.

Joke #420

What's a crawler camera's biggest fear?

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Getting stuck in a pipe with a supervisor on the other end of the cable.

Joke #421

What did the thermal camera say to the overheated motor bearing?

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"I see you're having trouble keeping your cool."

Joke #466

What did the Acoustic Emission sensor tell the pressure vessel during the hold?

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"Take your time. I'm all ears."

Joke #467

Why is shearography the most patient inspection method?

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It makes the part sit under stress and watches how it handles pressure.

Joke #470

Why did the thermographer cancel the scan of the shiny pipe?

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All she could see was herself.

Joke #472

Why was the calibration block so calm during the audit?

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Its certificate was current.

Joke #511

What do you call a probe cable with a bad connector?

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A very expensive piece of rope.

Joke #512

What's the difference between a probe and a probe cable?

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The probe is calibrated. The cable is just trusted.

Joke #513

Why wouldn't the instrument battery go up the scaffold?

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It didn't have the energy.

Joke #514

How many spare batteries does a technician carry?

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One more than the number she remembered to charge.

Joke #515

Where is the setting you need in the instrument menu?

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One screen deeper than the one you're on.

Joke #516

Why did the couplant bottle look so tired at the end of the shift?

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Everyone had been squeezing it for answers.

Joke #517

What's the heaviest piece of NDT equipment?

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The case that was supposed to be light.

Joke #518

Why did the ultrasonic probe sign up for night classes?

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It wanted to improve its resolution.

Joke #519

What's the difference between a discontinuity and a defect?

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One acceptance criterion and a very awkward meeting.

Joke #561

What did the base metal say to the weld bead that never fused?

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"You only ever stuck around on the surface."

Joke #564

Why did the Level I bring a ladder to the Level III's office?

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She heard the next step was up.

Joke #612

What does a Level III say when you show him a rejectable indication?

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'Interesting. Now show me the one you didn't circle.'

Joke #613

Why did the technician ace the eye exam and still miss the discontinuity?

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The exam was at twelve inches. The weld was at the top of a scaffold.

Joke #614

How many Level IIIs does it take to change a light bulb?

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None. They write the procedure, and a Level II changes it.

Joke #615

Why did the Level I look pale at the practical exam?

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The test block had seven indications and the answer key had six.

Joke #616

What's the difference between a Level II and a Level III?

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A Level II knows how. A Level III knows why, and also which edition.

Joke #617

Why did the Level III refuse to answer the multiple-choice question?

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None of the choices said 'it depends.'

Joke #618

Why did the Level II study Snell's law the night before the exam?

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She wanted to know which way the answers bend at the boundary between A and B.

Joke #619

Why did the technician photocopy her certification card nine times?

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She has lost the original in every truck she has ever owned.

Joke #620

Why does every logbook have such tidy handwriting in December?

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Everyone buys a fresh pen for the annual review.

Joke #621

How long is a Level III's quick question?

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About forty-five minutes and a revision.

Joke #622

Why did the Level III refuse to sign the weld as acceptable?

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The procedure said 'as required.' She wanted to know by whom.

Joke #668

How do you know a clause has been interpreted correctly?

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You don't. You just know when people stop arguing.

Joke #669

Why did the specification and the code go to couples counseling?

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They kept requiring different things of the same weld.

Joke #670

What does an inspector say when the spec contradicts the code?

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'Please send that in writing, signed, and preferably before the shutdown.'

Joke #671

Why does the acceptance table have a footnote on every row?

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It's the only way a code can say 'yes, but' in a grid.

Joke #672

What's the difference between an inspection and a report?

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The inspection ends when you leave the site. The report ends when you leave the profession.

Joke #766

Why did the technician pack a gallon of couplant for a two-hour job?

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Because the job is never two hours, and the couplant is never enough.

Joke #831

Why do inspectors always end up in the room next to the ice machine?

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They don't ask for it. It's just the only room left.

Joke #833

Why was the technician late to the safety meeting?

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She couldn't find a seat. Everyone else showed up early.

Joke #835

What's the only instrument in the truck that's always within tolerance?

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The lunch cooler. It's always the same temperature as outside.

Joke #840

Why did the wind technician bring a spare checklist to the top of the tower?

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The first one went to inspect the other turbines.

Joke #841

Why did the rail inspector bring a ruler to the meeting?

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To measure the gauge of the client's patience: 56.5 inches, standard.

Joke #845

Who arrives first, leaves last, and still gets blamed for the schedule?

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The inspector, the only person on site whose job is to say 'not yet.'

Joke #848

What's the most dangerous question in NDT?

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How long will it take? It has no right answer and several wrong ones.

Joke #849

What's the shortest distance between sales and the field?

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A text message, and it always arrives at 8 p.m.

Joke #852

What's the difference between a client's complaint and a transducer?

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The transducer eventually stops ringing.

Joke #854

Why did the project schedule fail its Ultrasonic Testing scan?

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It showed a complete loss of back wall: no end in sight.

Joke #855

What's a project manager's favorite part of the code book?

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The thickness. It makes a great monitor stand.

Joke #857

Why did the inspector's report get a standing ovation?

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It was the first one the client read all the way to the end.

Joke #858

Why are the office and the field like Snell's law?

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The farther apart the two media, the more the message bends.

Joke #860

What do project managers hear when an inspector says 'relevant indication'?

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'Repair, reinspect, and slide the schedule.'

Joke #861

What's a salesperson's favorite NDT method?

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Acoustic Emission Testing. It only gets results under pressure.

Joke #862

Why did the project manager add a margin to the schedule?

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It was the only margin the client didn't cut.

Joke #864

What is a pressure vessel's least favorite day?

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Hydrotest day. Everybody keeps asking if it can handle the pressure.

Joke #1013

Why do blade root bolts make good friends?

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They're always there for you when the load gets heavy, and they never loosen up.

Joke #1121

What is the most unreliable part of any wind farm job?

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The weather window, the only window that's always closed when you get there.

Joke #1123

Why did the wind technician bring a copy of her certifications to the base of the tower?

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She wanted proof she was qualified to go up in the world.

Joke #1124

Why was the wheel inspector such a good judge of character?

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She could always tell who was well-rounded and who had a flat spot.

Joke #1161

What does a hi-rail inspector have in common with a train?

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They both run on a schedule somebody else wrote and nobody follows.

Joke #1163

Why did the calibration certificate arrive at the audit nervous?

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It had an expiration date, and the auditor had a calendar.

Joke #1241