Hand Tools MCQ Quiz - Objective Question with Answer for Hand Tools - Download Free PDF

Explanation:

Pliers

• They are specified with their overall dimensions of length in mm.
• The pliers used for electrical work will be of insulated grip.
• It is made of forged steel. It is used for cutting, twisting, pulling, holding, and gripping small jobs in wiring assembly and repairing work.
• A non-insulated type is also available. Insulated pliers are used for work on live lines.

Basic surveying instruments are required for plane table surveying:

1. Plane table
2. Alidade for sighting (telescopic or simple)
3. Plumb bob and plumb fork
4. Compass
5. Spirit level
6. Chain
7. Ranging rods
8. Tripod
9. Drawing sheet and drawing tools

Plumb bob and plumb fork: Plumbing fork is a hairpin-shaped brass frame made of arms of equal length. One is horizontal (upper arm) has a pointed end and is kept over the drawing sheet touching the plotted position of the instrument station while the other is inclined at a certain angle(lower arm) has a hook from which plumb bob is suspended as shown in the figure.

Explanation:

• An engineer's hammer is a hand tool used for striking purposes while punching, bending, straightening, chipping, forging or riveting.
• Major parts of a hammer: 

1. head 
2. handle

• The head is made of drop-forged carbon steel, while the wooden handle must be capable of absorbing shock. 
• The parts of a hammer-head are

1. face 
2. pein 
3. cheek 
4. eyehole 

Claw hammer

• A claw hammer is one of the most common tools used in carpentry.
• There is a well-counterbalanced claw on one side of the head and the other side is rounded.
• It is mostly used in construction.
• When a nail is used, a claw hammer leaves a distinctive waffle mark on the wood.
• That is why the other head of this hammer is also known as a waffle head. 

Explanation:

Scrapers

• Scrapers are used to correct slight errors on all flat or curved surfaces. Scrapers are made up of high-grade tool steel or special alloy steel and tungsten carbide-tipped tools.
• Scraper material: High-grade tool steel or special alloy steel and tungsten carbide tipped tool.
• Specification: The overall length of the blade and handle may range from 150 to about 500 mm.

Additional Information 

Types and uses of the scraper:

Explanation:

Spanner

• A spanner is a hand tool with jaws or opening or a ring at one end or at both ends for tightening or slackening nuts and bolts and screw heads.
• It is made of drop- forged, high tensile or alloy steel and heat treated for strength.

Types of spanners

• Open end spanners
• Ring spanners
• Tube or tubular box spanners
• Socket spanners
• Adjustable spanners 
• Hook spanners (C-spanner)
   

Explanation:

Pincer

• The Pincer is used for pulling out nails from wood.
• It has two arms of forged steel hinged crosswise.
• The two jaws have their outer faces plane and inner faces are beveled to obtain an edge.

Additional InformationChisel 

• Chisel is a hand-cutting tool used by fitters for chipping and cutting-off operations.
• Chipping is an operation of removing excess metal with the help of a chisel and hammer.

Explanation:

Vices 

• Vices are used for holding the workpieces.  They are available in different types.
• The vice used for bench work is the bench vice or called Engineer’s vice.
• A bench vice is made of cast iron or cast steel and it is used to hold work for filing, sawing, threading, and other hand operations.

Explanation:

• An engineer's hammer is a hand tool used for striking purposes while punching, bending, straightening, chipping, forging or riveting.
• Major parts of a hammer: 

1. head 
2. handle

• The head is made of drop-forged carbon steel, while the wooden handle must be capable of absorbing shock. 
• The parts of a hammer-head are

1. face 
2. pein 
3. cheek 
4. eyehole 

Claw hammer

• A claw hammer is one of the most common tools used in carpentry.
• There is a well-counterbalanced claw on one side of the head and the other side is rounded.
• It is mostly used in construction.
• When a nail is used, a claw hammer leaves a distinctive waffle mark on the wood.
• That is why the other head of this hammer is also known as a waffle head. 

Explanation:

• V blocks are generally made of hardened steel or cast iron and are available in a wide range of sizes.
• 
• V blocks are devices used for marking and setting up work on machines.
• They are used when laying out or drilling round work.
• They are found in grade A and grade B. ‘B’ grade V blocks are made from closed-grain cast iron and ‘A’ grade V blocks are made from high-quality steel.
• V bock of grade A is more accurate and is found only up to 100 mm in length. V block of grade B is used for general work and is found up to 500 mm length.

Explanation:

Mallet hammer:

• Mallet is a wooden-headed hammer of a round or rectangular cross-section.
• The striking face is made flat to the work.
• It is the most used hammer in any sheet metal shop.
• It is used where light force is required.
• It is used to deliver a softer impact than conventional hammers.
• A mallet is used for bending and smoothening the sheet.

Additional Information

Hammers used for sheet metal work

Explanation:

• An engineer’s hammer is a hand tool used for striking purposes while punching, bending, straightening, chipping, forging or riveting.
• The major parts of a hammer are the head and the handle. The parts of a hammerhead are the face, pein, cheek and the eyehole.

• An engineer’s hammers are specified by their weight and the shape of the pein. Their weight varies from 125 grams to 750 grams.
• The weight of an engineer’s hammer used for marking purposes is 250 grams.
• The ball pein hammers are used for general work in a machine/fitting shop.
• The approximate length of the hammer handle for a 500 gram hammer is 300 mm.

Explanation:

Spanner

• A spanner is a hand tool with jaws or opening or a ring at one end or at both ends for tightening or slackening nuts and bolts and screw heads.
• It is made of drop- forged, high tensile or alloy steel and heat treated for strength.

Types of spanners

• Open end spanners
• Ring spanners
• Tube or tubular box spanners
• Socket spanners
• Adjustable spanners 
• Hook spanners (C-spanner)
   

Explanation:

Scrapers

• Scrapers are used to correct slight errors on all flat or curved surfaces. Scrapers are made up of high-grade tool steel or special alloy steel and tungsten carbide-tipped tools.
• Scraper material: High-grade tool steel or special alloy steel and tungsten carbide tipped tool.
• Specification: The overall length of the blade and handle may range from 150 to about 500 mm.

Additional Information 

Types and uses of the scraper:

Explanation:

• V blocks are generally made of hardened steel or cast iron and are available in a wide range of sizes.
• They are used when laying out or drilling round work.
• They are found in grade A and grade B.
• ‘B’ grade V blocks are made from closed-grain cast iron and ‘A’ grade V blocks are made from high-quality steel.
• V bock of grade A is more accurate and is found only up to 100 mm in length.
• V block of grade B is used for general work and is found up to 300 mm in length.

Scraper:

• A scraper is a hand tool designed for precision scraping, which involves removing small amounts of material to achieve a flat and smooth surface. Scrapers are often used in metalworking and precision machining to improve the accuracy and finish of surfaces.
• They are particularly useful for removing small irregularities and achieving a fine level of precision in metal surfaces.
• Scraping provides benefits over other finishing methods in terms of precision and flatness. It allows for the correction of small errors and the achievement of tight tolerances.
• Scraping is also known for producing superior surface finishes compared to some other machining or finishing processes.

Here, option 2 is correct.