Ramsay Test Hand and Power Tools — Questions and Answers
Question 1: When using a click-type torque wrench to tighten a fastener, the technician should:
- Apply force in short jerky strokes to ensure the click registers
- Apply smooth, steady force and stop immediately when the wrench clicks (Correct answer)
- Continue tightening one-quarter turn after the click to ensure full seating
- Use the torque wrench to break the fastener loose before torquing to spec
Correct answer: Apply smooth, steady force and stop immediately when the wrench clicks
A click-type torque wrench signals the target torque has been reached with an audible and tactile click. Continuing to apply force after the click overtightens the fastener and can damage the thread, the joint, or the wrench's calibration.
Question 2: Before mounting an abrasive wheel on an angle grinder, the most critical safety check is:
- Confirming the wheel is the same color as the previous wheel
- Ensuring the wheel's maximum RPM rating meets or exceeds the grinder's no-load speed (Correct answer)
- Removing the guard to verify the wheel seats flush on the flange
- Soaking the wheel in water to prevent overheating during use
Correct answer: Ensuring the wheel's maximum RPM rating meets or exceeds the grinder's no-load speed
Every abrasive wheel has a maximum operating RPM printed on its blotter. If the grinder's speed exceeds the wheel's rating, centrifugal force can cause the wheel to shatter violently. The wheel's rated RPM must always be equal to or greater than the tool's no-load speed.
Question 3: A mechanic needs a clean, square cut on a 1.5-inch steel pipe. The most appropriate tool is:
- A hacksaw with a 14 TPI blade
- A reciprocating saw with a wood blade
- A pipe (tubing) cutter (Correct answer)
- An oxyacetylene cutting torch
Correct answer: A pipe (tubing) cutter
A pipe cutter rotates around the pipe and uses a hardened wheel to score and sever the pipe in a perfectly square, clean cut with minimal burring. Hacksaws can cut pipe but require careful squaring and deburring; reciprocating saws produce rough cuts; torches are for heavy steel and leave oxidized, rough edges.
Question 4: Before drilling a hole in a metal workpiece, a center punch is used to:
- Deburr the hole after drilling is complete
- Create a small indentation that prevents the drill bit from walking off location (Correct answer)
- Harden the metal at the drill point to improve bit life
- Mark the metal with a visible paint impression for layout
Correct answer: Create a small indentation that prevents the drill bit from walking off location
A center punch creates a dimple at the exact drill location. This gives the drill bit's tip a seat to register in at the start of the cut, preventing it from skating (walking) across the metal surface before it bites.
Question 5: When selecting a Phillips screwdriver, using a tip that is too small for the screw head primarily causes:
- The screw to strip its thread due to excess torque
- Cam-out — the tip riding up and out of the recess under torque (Correct answer)
- The screw head to crack from stress concentration
- No problem, since a smaller tip fits inside a larger recess
Correct answer: Cam-out — the tip riding up and out of the recess under torque
Phillips recesses are tapered by design so that the driver cams out at a certain torque — a feature that can become a problem when the tip is undersized and cams out prematurely. An undersized tip contacts only the top of the recess, with too little engagement area to transmit torque without slipping.
Question 6: When tapping a blind hole (a hole that does not pass through the workpiece), the correct sequence of taps to use is:
- Bottoming tap only — it cuts to the bottom in one pass
- Plug tap only — it has enough chamfer for all holes
- Taper tap first, then plug tap, then bottoming tap to finish near the bottom (Correct answer)
- Bottoming tap first to set the depth, then taper tap to cut the threads
Correct answer: Taper tap first, then plug tap, then bottoming tap to finish near the bottom
A taper tap (7–10 chamfered threads) starts easily and cuts gradually — ideal for beginning the thread. A plug tap (3–5 chamfered threads) continues the thread deeper. A bottoming tap (1–2 chamfered threads) finishes the thread as close to the bottom of the hole as possible. Skipping the sequence risks breaking a bottoming tap in an unprepared hole.
Ramsay Test Hand and Power Tools
When using a click-type torque wrench to tighten a fastener, the technician should: