Explore topic-wise MCQs in Mechanical Engineering.

This section includes 180 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.

151.

What is used in centering aid in theodolites, compass, plane table and variety of other surveying instruments?

A. butt rod
B. whites
C. laths
D. plumb bob
Answer» E.
Discussion
152.

What is used for measuring offsets, but it is often used by building surveyors or architects?

A. plum bob
B. butt rod
C. pegs
D. laths
Answer» C. pegs
Discussion
153.

ground?

A. spirit level
B. plumb bob
C. butt rod
D. pegs
Answer» C. butt rod
Discussion
154.

Which of the following is not under direct measurement?

A. pacing
B. chaining
C. taping
D. triangulation
Answer» E.
Discussion
155.

Most accurate method of direct measuring is with

A. passometer
B. pedometer
C. theodolite
D. chaining
Answer» E.
Discussion
156.

Instrument for registering the number of revolutions of a wheel is

A. odometer
B. pedometer
C. pedometer
D. chaining
Answer» B. pedometer
Discussion
157.

Which instrument registers total distance covered by any number of pace?

A. passometer
B. pedometer
C. odometer
D. chaining
Answer» C. odometer
Discussion
158.

Which instrument mechanism is operated by motion of the body and it automatically registers the number of paces, thus avoiding the monotony and strain of counting the paces, by the surveyor?

A. passometer
B. pedometer
C. odometer
D. chaining
Answer» B. pedometer
Discussion
159.

Pacing is difficult in

A. smooth surfaces
B. plain areas
C. rough ground
D. plateaus
Answer» D. plateaus
Discussion
160.

Which method consists in counting the number of paces between the two points of a line?

A. chaining
B. pacing
C. levelling
D. contouring
Answer» C. levelling
Discussion
161.

Which of the following measurements varies with an individual before computing the length of line?

A. chaining
B. pacing
C. levelling
D. contouring
Answer» C. levelling
Discussion
162.

Which of the following is not among the methods of linear measurements?

A. direct measurements
B. measurements by optical means
C. indirect measurements
D. electromagnetic methods or edm
Answer» D. electromagnetic methods or edm
Discussion
163.

Which of the following is not a method of measuring the distances directly?

A. pacing
B. measurement with passometer
C. measurement with pedometer
D. measurement with theodolite
Answer» E.
Discussion
164.

‘Zero error is an indication of instrumental error’.

A. true
B. false
Answer» B. false
Discussion
165.

Starting position of an object is representedas x=5.1±0.2m and finishing position asy=6.9±0.3m. What will be the displacementand error in displacement?

A. displacement = 1m, error = 0.5m
B. displacement = 2m, error = 0.36m
C. displacement = 1.8m, error = 0.36m
D. displacement = 1.5m, error = 0.4m
Answer» D. displacement = 1.5m, error = 0.4m
Discussion
166.

Which standard is fixed and used forindustrial laboratories?

A. international standard
B. primary standard
C. secondary standard
D. working standard
Answer» D. working standard
Discussion
167.

Which of the following is not afundamental quantity?

A. length
B. angle
C. time
D. luminous intensity
Answer» C. time
Discussion
168.

‘A system will be error free if we removeall systematic error’.

A. true
B. false
Answer» C.
Discussion
169.

Which of the following error is caused bypoor calibration of the instrument?

A. random error
B. gross error
C. systematic error
D. precision error
Answer» D. precision error
Discussion
170.

What is the least count of dial indicators which can be calibrated using passmeter?

A. 0.01 mm
B. 0.03 mm
C. 0.05 mm
D. 0.07 mm
Answer» B. 0.03 mm
Discussion
171.

What is the maximum permissible error in wear of centres?

A. 0.04 mm
B. 0.03 mm
C. 0.02 mm
D. 0.01 mm
Answer» E.
Discussion
172.

Which of the following is true for checking the Relative perpendicular motion of the longitudinal and transverse carriage?

A. the permissible error allowed is 0.005 mm in 2500 mm length.
B. this is checked using a slip gauges
C. precision square of class i or 0 is used
D. maximum error in precision error is of ± 10″ in squareness
Answer» D. maximum error in precision error is of ± 10″ in squareness
Discussion
173.

Which of the following is caused bycareless handling?

A. systematic error
B. gross error
C. random error
D. none of the mentioned
Answer» C. random error
Discussion
174.

What is the permissible error in straight movement of longitudinal and transverse table in horizontal plane?

A. 0.002 mm
B. 0.003 mm
C. 0.004 mm
D. 0.005 mm
Answer» B. 0.003 mm
Discussion
175.

Which of the following is true for the calibration of instruments?

A. in casting and fabrication shops the measurements made are of more precise nature as compared to those made in machine shop and tool room
B. periodical calibration is made for optical measuring instruments
C. there is no need of periodic calibration in universal microscope
D. preventive maintenance is not necessary for optical measuring instruments
Answer» C. there is no need of periodic calibration in universal microscope
Discussion
176.

used for setting of helix angles in universal micrometer?

A. 1’
B. 2’
C. 3’
D. 4’
Answer» B. 2’
Discussion
177.

rotation in universal micrometer?

A. dial indicator
B. slip gauges
C. control shaft
D. universal microscope
Answer» D. universal microscope
Discussion
178.

movements?

A. 0.04 mm
B. 0.05 mm
C. 0.07 mm
D. 0.06 mm
Answer» E.
Discussion
179.

What is the maximum permissible error for class I micrometers?

A. 0.002 mm
B. 0.004 mm
C. 0.008 mm
D. 0.016 mm
Answer» C. 0.008 mm
Discussion
180.

What is the relation between variation due to observation, manufacturing process and measuring process of a product?

A. σobservation = σprocess + σmeasurement
B. σobservation = σprocess – σmeasurement
C. σobservation = σprocess * σmeasurement
D. σobservation = σprocess / σmeasurement
Answer» B. σobservation = σprocess – σmeasurement
Discussion