WorksheetsWelding and Fluid Mechanics Quiz
Total questions: 48
Worksheet time: 2hrs 39mins
Which of the following correctly represents the unit of Rockwell hardness?
BHN
HRC
VHN
RW
Porosity in welds is caused due to
Excessive welding speed
Presence of moisture or gas entrapment
Improper electrode angle
High welding current
Steel is an alloy of Iron and Undercut in welding refers to:
A groove melted into the base metal next to the weld toe
A crack in the weld
A type of filler metal
Improper electrode selection
Which defect is caused by improper cleaning of the weld joint before welding?
Hot cracking
Slag inclusion
Undercut
Lack of fusion
Which of the following is a property of fluids?
Fixed shape
Incompressibility
Ability to flow
Fixed volume
The property of a fluid that resists the relative motion between adjacent layers is called ______________
Density
Surface tension
Viscosity
Pressure
Which of the following is the correct unit of density?
N/m³
kg/m³
m³/kg
kg.m/s²
The SI Unit of temperature is _______________
Meters
Foot
Pound
Kelvin
A piston and cylinder arrangement in an internal combustion engine is an example of which type of kinematic pair?
Turning pair
Sliding pair
Rolling pair
Spherical pair
Which of the following is an inversion of a single slider crank chain?
Whitworth quick return mechanism
Four-bar linkage
Scotch yoke mechanism
Beam engine
In which application is a flat belt drive commonly used?
Gearbox of a car
Elevator system
Flour mill drive
Bicycle transmission
Rope drives are best suited for which of the following applications?
Compact household appliances
Connecting gearbox and crankshaft
Elevators and cranes
Bicycles and motorcycles
Which type of gear has teeth parallel to the axis of the gear?
Helical gear
Bevel gear
Spur gear
Worm gear
A nut and bolt combination is an example of:
A welded joint
A permanent joint
A threaded fastener
A riveted joint
In TIG welding, the electrode used is:
Consumable
Non-consumable tungsten
Copper rod
Coated iron rod
The main objective of heat treatment is to improve the (a) properties of metals.
The measure of mass per unit volume of a fluid is called (a) .
The imaginary circle that rolls without slipping when two gears mesh is called the circle.
(a)
In arc welding, the electric arc is struck between the electrode and the .
Define Weldability of metals.
Define an Alloy.
What do you mean by Specific Heat.
Define Composites.
What is Mechanism.
Define “kinematic pair.”
Define Velocity ratio of a Belt drive
What is Brazing.
List any three defects in welding.
List any three properties of High Speed Steel (HSS).
Mention the main constituents of Brass with its composition.
Explain Thermal Conductivity.
List the types of constrained Motions.
Define a Machine in the context of Kinematics.
Mention the different Materials used for Belts.
Write the Principle of Soldering.
Differentiate between BCC and FCC Crystal structure.
Explain Flame hardening process with a neat sketch.
Describe Working principle of Venturimeter.
Identify the suitable metal used in the production of Gear Housing of an automobile. Mention its properties.
Explain 4-bar mechanism.
Differentiate between Chain and rope drives.
Two gear wheels having 80 teeth and 30 teeth mesh with each other. If the smaller gear wheel runs at 480 rpm, find the speed of the larger wheel.
Explain Oxy-Acetylene gas welding process.
Discuss the working mechanism of hydraulic turbine in fluid mechanics.
A Bourdon tube pressure gauge shows a deflection of 25° from its zero position. The gauge is calibrated with a constant K=15 psi/°K. Find the pressure indicated by the gauge.
Discuss any two applications of inversions of slider crank mechanism with suitable sketches.
A flour mill uses a motor running at 1440 rpm connected to a shaft through an open belt drive. The diameter of the motor pulley is 200 mm, and the shaft pulley is 500 mm. If the belt drive has a 5% slip, determine: a) The speed of the shaft. b) Is the system suitable for constant load transmission? Justify.
A workshop needs to join two mild steel plates permanently. Recommend a suitable welding process and describe the steps involved in performing a fillet lap joint.
