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Vacu-blast beads re-used on a steel component, after being used on an aluminium component will. cause clogging of the vacu-blast machine. be ineffective in abrasion. cause corrosion to the steel component.

The main scale on a 49/50 Vernier caliper is divided into. inches, tenths and thousandths. inches, tenths and twentieths. inches, tenths and fortieths.

Centre punches are made of. high carbon steel with the tip hardened and tempered. case hardened mild steel. high carbon steel hardened and tempered.

What type of flutes should be used in a reamer for cutting titanium?. Spiral flutes. Straight flutes. Tapered flutes.

What should be the included angle of a twist drill for soft metals?. 65 degrees. 90 degrees. 118 degrees.

What should the point angle of a drill be if it is to be used for drilling titanium (drill size below 1/4 inch diameter)?. 90°. 90° to 105°. 105 to 120°.

How are pin punches classified?. By length and diameter of the small end. By overall length and type. By type and diameter of the small end.

The purpose of a taper tap is to. produce a fine thread. start a thread. form a tapered thread.

Why is the Vee cut in the base of a scribing block?. To reduce the contact area with the marking off table and reduce friction. To allow the scribing block to be used on the edge of the marking off table. To trap any dirt that may be adhering to the surface of the marking off table.

An inside micrometers normal measurement range is. 1/2in. to 10in. 2in. to 10in. 2in. to 12in.

What is the purpose of Target Points on a Vernier caliper?. To enable spring dividers to be accurately set. To zero the caliper. For scribing lines inside tubes.

Die Nuts are used to. form internal threads. form external threads. clean up damaged threads.

A Dial Test Indicator may be used for. checking a round bar for bow. checking dimensions to within 0.125'. checking any known depth.

Which cut of a file should be used on mild steel?. Single cut. Double cut. Second cut.

Which of the following statements is correct?. To cut thin mild steel plate use a coarse blade. To cut an aluminium block use a fine hacksaw blade. To cut thin sheet metal use a fine blade.

A power meter indicates that a circuit has a power of 4 kW. Separate readings of the voltage and current are 400 V and 20 A respectively. The Power factor is. 1/2. 2. 20.

What is a key-seat rule used for?. Marking lines which are parallel to a true edge. Marking lines parallel to an axis of a round bar. Providing a positive driving force.

When measuring current in a circuit, the ammeter is placed. in series with the circuit. in series with the shunt. in parallel with the circuit.

A 3 1/2 bit multimeter will indicate readings up-to. 999 1/2. 1999. 9999.

An open circuit on an ohmmeter would be indicated by a reading of. infinite resistance. zero resistance. a negative resistance.

The leads of an ohmmeter should be replaced if their resistance is greater than. 0.05 ohms. 0.5 ohms. 1 ohm.

Torque loading is determined by multiplying the tangent force applied at the free end of the spanner. by the dia. of the bolt and the distance of its point of application. by the distance moved by the point of application. by its distance of application from the axis of the bolt.

Which electrical measuring device needs a power source?. A voltmeter. An ohmmeter. An ammeter.

When measuring voltage or current with a digital multimeter, the indication is. average values. peak values. RMS values.

On a multimeter, what colour lead is connected to the Common socket?. Green. Red. Black.

Three point micrometers are for measuring. internal dimensions. external dimensions. linear dimensions.

When is a coarse hacksaw blade used?. When cutting material of thick cross section. When cutting ferrous metals only. When cutting material of thin cross section.

A voltage drop across a component is measured by placing the meter in. parallel with the component. series with the component. series with the power source.

Which of the following reamers would you use in a hole having a keyway?. Expanding reamer. Spiral fluted reamer. Parallel reamer.

What is the purpose of a Morse taper on large sizes of twist drills?. To allow the drills to be fitted to a drilling machine. To ensure that the drill is fitted correctly. To give a positive drive when fitted into a tapered chuck.

What should be the included angle of a twist drill for hard metal?. 90 degrees. 100 degrees. 118 degrees.

The threads per inch on the spindle of an English micrometer are. 25 t.p.i. 40 t.p.i. 50 t.p.i.

The spring loaded ratchet attached to the spindle of a standard external micrometer produces. a pre-set feel during use. a means for controlling thread binding. a smooth free run during use.

The purpose of the land on a twist drill is to. allow clearance for swarf. reduce friction. present the cutting edge at the required angle.

The name given to the moving scale on the Vernier caliper is. the main scale. the vernier scale. the cursor.

What does the cut of a file refer to?. Arrangement of the teeth. Number of teeth per inch. Grade.

Why are teeth of hacksaw blades off-set?. To allow a quick cutting positive action. To provide greater strength. To provide clearance for non-cutting part of the blade.

How are files classified?. By length, grade and material. By length, grade, cut and section. By length, grade, cut, section and material.

Hammers are classified by. shape of head and length of shaft. weight and length of shaft. weight and type of head.

What comprises a full set of BA taps?. A taper, second and plug tap. A taper and second tap. A taper and plug tap.

The teeth on a hacksaw blade. does not matter which way they point. should point away from the handle. should point towards the handle.

What is the clearance angle on a normal twist drill?. 12 degrees. 59 degrees. 130 degrees.

When tapping blind holes. a set of three taps is used. a set of two taps is used. a single tap is used.

On a torque wrench the torque loading is. the tangential application of the force divided by the perpendicular distance to the centre of the bolt. the tangential application of the force times the perpendicular distance to the centre of the bolt. the tangential application of the force plus the perpendicular distance to the centre of the bolt.

Surface Plates are used. for marking out work and testing flat surfaces. for filing flat surfaces. only on surface tables.

The main scale of a Metric Vernier Caliper is calibrated in. millimetres. micro-meters. millimetres and half millimetres.

For a drill to cut properly it is essential that the point angle be the same on each side, for general use the angle is. 12°. 59°. 130°.

The pitch of a hacksaw blade is. the number of teeth per inch. its length. the number of teeth on the blade.

When using a bench grinding machine the wheel rotates. from the top down towards the work piece. either direction as selected on starting the machine. from the bottom upwards past the work piece.

The thimble of an English micrometer is divided into. 25 equal divisions. 40 equal divisions. 50 equal divisions.

The vernier height gauge uses the same principle as. the vernier caliper. the micrometer. the bevel protractor.

An avometer can measure alternating current because it has a. moving coil. bridge rectifier circuit. moving iron.

Taper reamers are classified by. a type number (1 to 10). the diameter of the small end. the diameter of the large end.

A crimped electrical connection is suspected to be high resistance. How would you verify this without disconnecting the circuit?. Measure the millivolt drop across the connection with a millivolt meter. Measure the resistance with an ohmmeter. Measure the resistance with a 250 volt megger.

How would you measure continuity of a coaxial cable?. With a safety ohmmeter. With a reflectometer. With a 250 volt megger.

On a long coaxial cable how would you check for discontinuities and shorts in suit?. Continuity tester. Safety ohmmeter. Time Domain Reflectometer.

If the leads of a bonding tester are damaged, what is the procedure?. The damaged leads and the tester should be returned to the manufacturer for repair and calibration. Provided that the damage is situated close to the end of the leads the cable may be shortened. A new lead may be manufactured using the correct current rated cable.

When carrying out a continuity test on a circuit when a known resistance exists, what instrument would you use?. A lamp and battery. A high resistance insulation tester. A multimeter.

Taper pins are classified by. length and diameter of large end. length and diameter of small end. length and taper.

Live AC circuits are to be checked for open circuits by the use of. multimeter set to AC volts. ammeter set to amps. ohmmeter set to megohms.

A multiplier resistance is used to extend the working range of the. ammeter. voltmeter. ohmmeter.

On twist drill chart, small drills have. smallest numbers. largest numbers. their sizes in fractions, in inches.

The Sine Bar is used to. check accuracy of slip gauges. produce angles using slip gauges. by itself to calculate angles.