Font size
WorksheetsMock Test2
Total questions: 90
Worksheet time: 1hrs 28mins
In 16-bit 2’s complement representation, the decimal number -28 is
1000 0000 1110 0100
0000 0000 1110 0100
1111 1111 1110 0100
1111 1111 0001 1100
The minters expansion of f(P, Q, R) = PQ + QR’ + PR’ is
m2 + m4 + m6 + m7
m0 + m1 + m3 + m5
m0 + m1 + m6 + m7
m2 + m3 + m4 + m5
In the circuit shown, diodes and are ideal, and the inputs and are “0 V” for logic ‘0’ and “10 V” for logic ‘1’. What logic gate does the circuit represent?
a.3-input OR gate
3-input AND gate
3-input NOR gate
3-input XOR gate
Consider the D-Latch shown in the figure, which is transparent when its clock input CK is high and has zero propagation delay. In the figure, the clock signal CLK1 has a 50% duty cycle and CLK2 is a one-fifth period delayed version of CLK1. The duty cycle at the output latch in percentage is ___________
30
25
35
40
A mod-n counter using a synchronous binary up-counter with synchronous clear input is shown in the figure. The value of n is
5
7
15
6
A 16 Kb (=16,384 bit) memory array is designed as a square with an aspect ratio of one (number of rows is equal to the number of columns). The minimum number of address lines needed for the row decoder is ____________
3
128
5
7
A linear time invariant system has an impulse response of e2t, t > 0. If the initial conditions are zero and the input is e3t, what is the output for t > 0?
e5t
e3t+e2t
e3t−e2t
None of the above
In a unity negative feedback system with an open–loop transfer function:
G(s)=K/{s(s+1)}
What should be the gain K for the system to have a damping ratio of 0.25?
5
2.5
4.75
4
Change in output of a sensor with change in input is
A.Resolution
Sensitivity
Response
Selectivity
Which one generally is not desired in sensors
High Selectivity
High Sensitivity
Hysteresis
Low Response time
In liquid level systems unit of capacitance is
m2
m3
m2/s
Farad
Arduino Uno works on
8 bit architecture
16 bit architecture
32 bit architecture
Both A and B
Which of the following semiconducting material is generally not used in the LDR sensor?
CdSe
InS
PbS
Ge
The basic function of the spring in a control valve is to
Characterize flow
Oppose the diaphragm so as to position the valve according to signal pressure
Close the valve if air failure occurs
Open the valve if air failure occurs
Which of the following is neutral position in float center 4/3 DC valve configuration
Which of the following is pressure sequence valve
MOV A, @R0 is which type of addressing
Direct Addressing
Indirect Addressing
Immediate Addressing
Register Addressing
A methane sensor gives wrong output because of presence of CO2, Which one can be said about sensor
Sensor has Low Selectivity
Sensor has Low Sensitivity
Sensor has Low Resolution
D.All of Above
Which of the following elements transfers torque and is only subjected with bending moment?
Brake
Clutch
Axle
Belt drive
The elongation of a bar is 0.5 mm, when a tensile stress of 200 N/mm2 acts on it. Determine original length of a bar if modulus of elasticity is 150 x 103.
375 mm
300 mm
360 mm
None of the above
What is the primary function of mechanism?
Power transmission
Power absorption
Force transmission
Motion transmission
A beam of uniform strength has
same cross-section throughout the beam
same bending stress at every section
same bending moment at every section
same shear stress at every section
In the given figure, the stress corresponding to point D is
yield point stress
breaking stress
ultimate stress
elastic limit
A shaft revolving at ω rad / s transmits torque (T) in N-m. The power developed is
T.ω watts
2 π Tω watts
2*pi*Tω/75 Watts
2*pi*Tω/4500 Watts
Oldham coupling is used to transmit power between two parallel shafts which are slightly offset.
True
False
Compression members always tend to buckle in the direction of the
Axis of load
Perpendicular to the axis of load
Minimum cross section
Least radius of gyration
The layer at the centre of gravity of the beam as shown in the given figure will be
In tension
In compression
Neither in tension nor in compression
None of these
Which one is not unit of Stress in any measurement system
N/mm2
kPa
psi
None of the given option
The rolling contact bearings are known as
thick lubricated bearings
plastic bearings
thin lubricated bearings
antifriction bearings
In order to remove internal stresses produced by hardening the steel, the process usually adopted is
tempering
annealing
normalising
spheroidising
In which turbine the pressure energy of water is first converted into kinetic energy by
Impulse turbine
Reaction turbine
Both a. and b.
None of the above
Which of the following is an example of impulse turbine?
Propeller turbine
Francis turbine
Kaplan turbine
Pelton wheel
Which of the following is NOT a type of positive displacement pumps?
Reciprocating pump
Rotary displacement pump
Centrifugal pump
None of the above
Machine elements such as bearings are _________
holding type elements
supporting type elements
power transmitting elements
all of the above
The objective of considering ergonomics in machine design is to ____
1. decrease physical stresses
2. make user adapt to the machine
3. make machine fit for the user
4. improve appearance of the product
only 2
3 and 4
1 and 3
1, 3 and 4
The component deforming progressively under load at high temperatures is called as
Resilience
Creep
Fatigue
All of the above
Match the following Manufacturing processes with their Types and select the correct option.
1 – A, 2 – C, 3 – D, 4 – B
1 – C, 2 – A, 3 – D, 4 – B
1 – B, 2 – A, 3 – D, 4 – C
1-– D, 2 – B, 3 – A, 4 – C
In four stroke cycle engine, cycle is completed in ______
two strokes of the piston
two revolutions of the crankshaft
three strokes of the piston
four revolutions of the crankshaft
Factor of safety is the ratio of _________
working stress and ultimate strength
yield strength and endurance strength
ultimate strength and yield strength
yield strength and working stress
Straight bevel gears are easy to design and manufacture and give reasonably good service with quieter operation.
True
No, noise problem
No, vibration problem
None of the listed
When, p = specific pressure v = specific volume P = Total pressure of gas V= Total volume of gas R = Characteristic gas constant n = number of moles in gas m = mass of the gas T = Temperature of the gas then the ideal gas equation will be
v =m R T
P V = R T
P V = m R T
all of the above
Which among the following systems undergo/es work transfer?
Current flowing through the resistor
A shaft rotated by a motor
both a. and b
none of the above
An electric current I is passing through a resistor in contact with a reservoir. The internal energy of the resistor is constant. Heat generated is absorbed by surrounding at temperature T0. What will be the effect on entropy of the universe?
Entropy of the universe is always constant
The process increases the entropy of the universe
The process decreases the entropy of the universe
cannot say
Consider the given diagram of heat transfer and work transfer for a system. What will be the first law equation for the below system?
(Q1 – Q2) = ΔE – ( W2 + W3 – W1 )
(Q1 + Q2) = ΔE + ( W2 – W3 + W1 )
(Q1 – Q2) = ΔE + ( W2 + W3 – W1 )
none of the above
Hybrid vehicle consist of
Motor electric 1 + motor electric 2
Internal combustion engine + electric motor
NGV engine + Gasoline engine
All of the above
What is heat transfer?
Flow of thermal energy from low-temperature reservoir to high-temperature reservoir
Flow of energy in the form of heat from high-temperature reservoir to low-temperature reservoir
Flow of thermal energy irrespective of reservoir temperature
None of the above
Thermal conductivity of solid metals with rise in temperature normally
increases
decreases
Constant
may increase or decrease depending on temperature
unpredictable
Which of the following is the case of heat transfer purely by radiation
blast furnace
heating of building
cooling of parts in furnace
heat received by a person from fireplace
all of the above
Which of the following has least value of conductivity
glass
water
plastic
rubber
air
Euler's formula holds good only for
short columns
long columns
both short and long columns
weak columns
Tolerance on the dimension x in the two-component assembly shown below is
±0.025
±0.030
±0.040
±0.045
In clearance fit size of shaft is _________ than hole size ?
Small
greater
Equal
None of the above
Which type of CNC machine is used for producing cylindrical parts?
CNC milling machine
CNC lathe
CNC router
CNC plasma cutter
CNC system use the following G code for absolute dimensioning ?
G 91
G 81
G 01
G 90
Which of the following is not a part of the transmission system?
Clutch
Wheels
Gear Box
Axles
Electric Vehicles are generally powered by __________
Aluminum batteries
Lead-acid batteries
Sodium batteries
Magnesium batteries
Which component in an electric vehicle allows the driver to control the speed and direction of the vehicle?
Battery pack
Electric motor
Drive-by-wire system
Charging port
Sum of three Natural numbers a, b and c is 10. How many ordered triplets (a, b, c) exist?
Ordered triplets means (a,b,c) and (b,a,c) are different. Also a=b or b=c or c=a will also be counted as a possiblity.
45
36
54
28
If all words with 2 distinct vowels and 3 distinct consonants were listed alphabetically, what would be rank of ACDEF.
4716
4720
4718
4750
From the digits 2, 3, 4, 5, 6 and 7, how many 5-digit numbers can be formed that have distinct digits and are multiples of 12.
36
60
84
72
You have 12 players (7 boys and 5 girls). How many ways can you form 3 teams of 4 players each if each team must include at least 1 girl and at least 1 boy?
10120
4360
31760
384
A box contains 5 red, 3 green, and 2 blue balls. Two balls are drawn at random. What is the probability that they are of different colors?
31/45
14/45
1/3
2/3
A box contains 6 white balls, 4 black balls, and 2 red balls. If three balls are drawn at random, what is the probability that at least one ball is red?
6/11
5/11
1/12
1/110
A bag contains 5 red balls and 3 blue balls. If you draw a ball from the bag, record its color, and then put it back in the bag. You repeat this process 4 times. What is the probability of drawing exactly 2 red balls in those 4 draws?
675/2048
5/8
25/64
10/28
In a city, 70% of the population owns a car, and 40% of the car owners also own a house. If a person is selected at random, what is the probability that they own a house given that they own a car?
4/7
0.28
0.4
0.7
What is the difference between the compound interests on Rs. 5000 for 1 years at 4% per annum compounded yearly and half-yearly?
Rs. 3.06
Rs. 4.80
Rs 8.30
Rs 2.04
Rahul invested a certain amount in three different schemes A, B, and C with the rate of interest 10% p.a., 12% p.a. and 15% p.a. respectively. If the total interest accrued in one year was Rs. 3200 and the amount invested in Scheme C was 150% of the amount invested in Scheme A and 240% of the amount invested in Scheme B, what was the amount invested in Scheme B?
Rs 10000
Rs 8000
Rs 6500
Rs 5000
If SACHIN is coded as CASINH then DRAVID will be coded as
RADDIV
RADIDV
ARDIDV
ARDDIV
Please read the directions given below and answer following question
Six product boxes are placed one above the other: A, B, C, D, E, and F, but not necessarily in the same order. At most two boxes are placed above box A. Two boxes are placed between box A and box B. The box of E is placed below the box B. The box of F is placed three places above the box C. No box is placed between box A and box D. Box D is placed below the box F.
Ques- Who sits between D & E
F & B
E only
F & A
A & C
B & C
Please read the directions given below and answer following question
Six product boxes are placed one above the other: A, B, C, D, E, and F, but not necessarily in the same order. At most two boxes are placed above box A. Two boxes are placed between box A and box B. The box of E is placed below the box B. The box of F is placed three places above the box C. No box is placed between box A and box D. Box D is placed below the box F.
Ques-What is position of C with respect to E
Two places above
Immediately above
Immediately below
4 place above
Please read the direction given below
Eight persons live in an eight-floor building. The ground floor is numbered as 1 and topmost floor is numbered as 8. D lives on an even number floor below 5th floor. There is only one person lives between D and C. G lives on one of the even number floors but not on the top floor. There are two persons live between C and A who lives below E. H lives on a floor immediate above the B’s floor. The number of persons live between F and B is same as the number of persons live between F and E.
Ques- On which floor E lives
5
6
4
3
Please read the direction given below.
Eight persons live in an eight-floor building. The ground floor is numbered as 1 and topmost floor is numbered as 8. D lives on an even number floor below 5th floor. There is only one person lives between D and C. G lives on one of the even number floors but not on the top floor. There are two persons live between C and A who lives below E. H lives on a floor immediate above the B’s floor. The number of persons live between F and B is same as the number of persons live between F and E.
Ques- Which of the following statement is correct
D lives two floor above A
Two persons live between F & B
F lives immediately above C
Three persons live between F & E
Please select option which best describes below given Idiom/ Phrase
Fair and Square
In an honest way and according to rules
Attractive Personality
Equal in size and shape
Clear communication
Please select option which best describes below given Idiom/ Phrase
By Fits and starts.
With lot of efforts
By any means
Occasionally and irregularly
Quickly and efficiently
Select word which best fits in the blank space to make a meaningful statement
The overpopulation of large snakes in the forest is …………… to the wild rat population.
Infliction
Stagger
Turpitude
Deleterious
Find the next number in given series
1, 6, 13, 24, 41, ?
64
66
61
70
Which number will be next in given series
16, 17, 27, 56, 142.5, ?
362
518
415.5
430.5
Which number will be next in given series
14, 526, 477, 693, 668,
753
752
648
732
A car after travelling a distance of 110 km develops a problem in the engine and proceeds at ¾ th of its former speed and arrives at the destination 60 minutes late. Had the problem developed 30 km further on, the car would have arrived 12 minutes sooner. Find the original speed of the car.
40 Km/h
50 Km/h
60 Km/h
45 Km/h
In what ratio, water must be mixed with fruit juice costing Rs.24 per litre so that the juice would be worth of Rs.20 per litre?.
1/5
5/1
1/6
6/1
Without stoppage, a train travels at an average speed of 72 km/hr and with some stoppage, it travels at an average speed of 60 km/hr. Find how many minutes, does train stops per hr?
12 min
10 min
11 min
13 min
Two vessels A and B contain milk and water mixed in the ratio 5: 3 and 4: 5 The ratio in which these mixtures be mixed to form a new mixture containing half milk and half water is
7/4
4/7
2/3
3/2
Study the pie chart and line graph given and answer the following questions.
Pie chart shows the % distribution of total employees of four companies (A, B, C & D) and line chart shows the % distribution of employees of each company in three different departments (i.e., Production, Finance and Marketing).
Ques- Find ratio of employees of company-A in finance & production department together to employees of company-B in production department and employees of company-C in marketing department together.
21/25
84/85
18/25
84/65
Study the pie charts given below and answer the following questions.
Pie chart shows the % distribution of total employees of four companies (A, B, C & D) and line chart shows the % distribution of employees of each company in three different departments (i.e., Production, Finance and Marketing).
Ques- Number of employees in A & B together is what percent more than employees in C
38
37.5
28.57
40
Study the pie charts given below and answer the following questions.
Ques A shopkeeper sells four different products A, B, C & D, Pie chart given shows distribution of total sale. If total sale is 720 product, find out how many products in category C he sold
140
330
280
180
If the volume of a cone is 308 cm cube and the area of base is 154 cm square, then surface area of curved surface will be
23√85
27√85
22√85
5√85
The area of a triangle is 294 cm2 and its sides are in the ratio 3 : 5 : 4. The perimeter of the triangle is.
102 cm
64 cm
81 cm
84 cm
A and B enter into a partnership with Rs. 14000 and Rs. 27,000 respectively. C joins x months before end of the year, contributing Rs. 21,000 and B leaves them after x months from the start of the year. If they share the annual profit in the ratio of 14 : 9 : 7, then find the value of x
3.5
4
5
7
In a given code language
Hospitals provide proper facilities’ is coded as ‘yu ki fs bv’
‘Proper study guidance important’ is coded as ‘bv at zx pe’
‘Hospitals facilities not important’ is coded as ‘zx yu fs gf’
‘facilities guidance where needed’ is coded as ‘fs at hw dn’.
What will be code for provide not
bv zx
gf bv
gf ki
fs zx
Find out which of the figures (1), (2), (3) and (4) can be formed from the pieces given in figure (X)
4
2
3
1
