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Intro to mech engg

Total questions: 45

Worksheet time: 23mins

Name
Class
Date
1.

Which combination correctly represents the SI base units?

a)

kg, N, s

b)

m, kg, J

c)

m, W, s

d)

m, kg, s

2.

The dimensional formula of work is

a)

ML2T−1ML^2T^{-1}

b)

MLT−2MLT^{-2}

c)

ML2T−2ML^2T^{-2}

d)

ML3T−2ML^3T^{-2}

3.

A pharmaceutical mixer rotating at constant speed exhibits

a)

Accelerated motion

b)

Linear motion

c)

Uniform circular motion

d)

Random motion

4.

Additive manufacturing (3D printing) is mainly associated with:

a)

Subtractive processes

b)

Casting processes

c)

Forming processes

d)

Layer-by-layer material deposition

5.

The invention that significantly contributed to the development of mechanical engineering during the 18th century was

a)

Nuclear reactor

b)

Steam engine

c)

Internal combustion engine

d)

Electric motor

6.

Which technological milestone catalyzed factory mechanization during the Industrial Revolution?

a)

Nuclear power development

b)

Steam engine proliferation

c)

AC induction motor adoption

d)

Semiconductor fabrication

7.

Power differs from work because power involves which additional factor?

a)

Mass factor

b)

Time factor

c)

Displacement only

d)

Force only

8.

In tablet compression machines, which mechanical principle is primarily used?

a)

Fluid statics

b)

Force transmission

c)

Electrical induction

d)

Chemical bonding

9.

Which civilization is credited with early development of simple machines like levers and pulleys?

a)

Chinese

b)

Roman

c)

Persian

d)

Greek

10.

Which physical quantity has dimensions ML2T−3ML^2T^{-3} ?

a)

Energy

b)

Force

c)

Power

d)

Pressure

11.

Conversion of units is mainly required to do what?

a)

Reduce calculations

b)

Maintain dimensional consistency

c)

Improve accuracy

d)

Change numerical value only

12.

The SI unit of pressure is derived from which relation?

a)

Force only

b)

Area only

c)

Force per unit area

d)

Energy per unit volume

13.

Henry Ford contributed to mechanical engineering history by introducing

a)

Steam locomotives in mass transit

b)

Robotics for automated factories

c)

CNC machines for precision work

d)

Assembly line production method

14.

The motion of a piston in a pharmaceutical filling machine is

a)

Circular motion of rotating parts

b)

Random motion without pattern

c)

Reciprocating motion back and forth

d)

Oscillatory rotation around axis

15.

Ethics in engineering primarily prevents

a)

Calculation errors in formulas

b)

Design failure due to load

c)

Production delay and scheduling

d)

Unsafe and irresponsible practices

16.

Reporting unsafe practices at the workplace is known as

a)

Arbitration in dispute resolution

b)

Compliance with company policy

c)

Negligence toward procedures

d)

Whistleblowing to authorities

17.

Which scenario best illustrates assembly line production?

a)

One expert builds entire product

b)

Parts are machined with CNC milling

c)

Workers perform repeated steps sequentially

d)

Robots design products autonomously

18.

Choosing not to disclose a conflict of interest when accepting gifts most directly undermines

a)

Confidentiality of client data

b)

Integrity and impartial judgment

c)

Competence in performing tasks

d)

Sustainability of operations

19.

Mechanical engineering evolved significantly due to

a)

Biotechnology

b)

Industrial revolution

c)

Space research

d)

Digital revolution

20.

Which quantity has the same dimensions as work?

a)

Force

b)

Pressure

c)

Momentum

d)

Energy

21.

Professional responsibility of an engineer mainly includes

a)

Public safety and quality

b)

Personal recognition

c)

Speed of work

d)

Profit maximization

22.

Convert 0.5 kN into newtons.

a)

0.05 N

b)

50 N

c)

500 N

d)

5000 N

23.

Lifelong learning is important for engineers because:

a)

Technology continuously evolves

b)

It improves salary only

c)

It reduces workload

d)

It avoids teamwork

24.

A machine does 120 J of work in 6 seconds. Power developed is

a)

12 W

b)

20 W

c)

18 W

d)

24 W

25.

Convert 72 km/h into m/s.

a)

25 m/s

b)

22 m/s

c)

20 m/s

d)

18 m/s

26.

The dimensional formula of pressure is

a)

ML−2T−1ML^{-2}T^{-1}

b)

ML−1T−2ML^{-1}T^{-2}

c)

MLT−2MLT^{-2}

d)

ML2T−2ML^2T^{−2}

27.

Which equation is dimensionally correct?

a)

F=mv2F = mv^2

b)

F=ma2F = ma^2

c)

F = ma

d)

F = m/a

28.

Convert 2500 mJ into joules.

a)

250 J

b)

25 J

c)

2.5 J

d)

0.025 J

29.

A tablet press applies 400 N force over 0.2 m. Work done is

a)

20 J

b)

80 J

c)

200 J

d)

800 J

30.

Which organization commonly provides codes of ethics for engineers?

a)

WTO

b)

ISO

c)

AICTE / IEI / ASME

d)

RBI

31.

Select the correct unit pair: Pressure is measured in

a)

newton per meter

b)

newton per square meter

c)

joule per meter

d)

joule per second

32.

Identify the correct statement about work: Work equals

a)

force divided by distance

b)

force multiplied by distance

c)

power multiplied by time

d)

mass multiplied by acceleration

33.

Plagiarism in technical reports violates which core principle?

a)

Operational efficiency

b)

Honesty and integrity

c)

Workplace safety

d)

Innovation in methodology

34.

The role of mechanical engineers in Industry 5.0 emphasizes what primary shift?

a)

Human–machine collaboration

b)

Full automation everywhere

c)

Replacement of engineers

d)

Large workforce reduction

35.

Which mechanical concept ensures uniform mixing in pharmaceutical blenders?

a)

Static equilibrium state

b)

Rotational kinematics

c)

Linear momentum flow

d)

Thermal expansion

36.

If time is doubled while work remains constant, what happens to power?

a)

Power is halved

b)

Power becomes zero

c)

Power stays same

d)

Power is doubled

37.

Which quantity is independent of direction?

a)

Velocity vector

b)

Acceleration vector

c)

Force vector

d)

Energy scalar

38.

CAD and CAM technologies became prominent during which era?

a)

Pre‑industrial era

b)

Industry 1.0 era

c)

Industry 3.0 era

d)

Industry 5.0 era

39.

The main focus of early mechanical engineering was

a)

Automation of complex factory systems

b)

Conversion of energy into useful work

c)

Digital control of mechanical devices

d)

Data processing for design decisions

40.

Mechanical engineering’s contribution to the pharmaceutical industry mainly started with

a)

Development of processing and packaging machines

b)

Drug formulation theory development

c)

Medical diagnosis instrumentation

d)

Clinical testing methodology creation

41.

The motion of a conveyor belt in a pharmaceutical packaging unit is typically

a)

Random unpredictable motion

b)

Oscillatory back-and-forth motion

c)

Circular rotational motion

d)

Linear uniform motion

42.

Ethics and professionalism in engineering together ensure

a)

Faster production timelines

b)

Complete automation of processes

c)

Higher salary for engineers

d)

Safe, reliable, and responsible engineering

43.

When using dimensional analysis, what is the primary check performed?

a)

Efficiency meets target benchmarks

b)

Variables follow normal distribution

c)

Costs align with budget forecasts

d)

Units balance across an equation

44.

An early mechanical engineering task focused on energy conversion would most likely involve

a)

Drafting policies for professional ethics

b)

Creating linkages and engines for machines

c)

Programming microcontrollers for robots

d)

Designing data structures for CAD

45.

Which outcome aligns most directly with engineering ethics and professionalism?

a)

Minimized risk to the public

b)

Guaranteed higher compensation

c)

Fully autonomous manufacturing lines

d)

Shorter project schedules overall

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