Explore topic-wise MCQs in Embedded Systems.

This section includes 2374 Mcqs, each offering curated multiple-choice questions to sharpen your Embedded Systems knowledge and support exam preparation. Choose a topic below to get started.

201.

What is the maximum expansion or contraction allowed for the joint filler material with an initial gap of about 30 mm?

A. 10 mm
B. 5 mm
C. 20 mm
D. 30 mm
Answer» B. 5 mm
202.

The expansion joints in floors and walls should normally be provided at a spacing of not more than ___________

A. 30 m
B. 45 m
C. 50 m
D. 55 m
Answer» B. 45 m
203.

In reinforced concrete floors, the movement joints should normally be spaced at a maximum spacing of ____________

A. 6 m
B. 4.5 m
C. 7.5 m
D. 9 m
Answer» D. 9 m
204.

Which of the following is a movement joint with complete discontinuity in both reinforcement and concrete and intended to accommodate either expansion or contraction of the structure?

A. Contraction joint
B. Expansion joint
C. Sliding joint
D. Construction joints
Answer» C. Sliding joint
205.

Which of the following is a movement joint with deliberate discontinuity but no initial gap?

A. Contraction joint
B. Expansion joint
C. Sliding joint
D. Construction joints
Answer» B. Expansion joint
206.

A partial contraction joint is the one in which?

A. both the concrete and reinforcing steel are interrupted
B. only the concrete is interrupted
C. only the reinforcement is interrupted
D. none of them is interrupted
Answer» C. only the reinforcement is interrupted
207.

Which of the following is not a movement joint?

A. Contraction joint
B. Expansion joint
C. Sliding joint
D. Construction joints
Answer» E.
208.

Which of the following is usually adopted for contraction and construction joints?

A. Rubber water bars
B. V-shape metal bars
C. PVC water bars
D. Z-shape metal bars
Answer» D. Z-shape metal bars
209.

Increased volumetric efficiency and reduced pumping losses can be done by varying cam timing using which component?

A. Variable cam phaser
B. Variable valve timing
C. Hard cam
D. Cylinder varying
Answer» B. Variable valve timing
210.

Which material is not used for timing gear?

A. Cast iron
B. Steel
C. Nichrome
D. Aluminum
Answer» D. Aluminum
211.

Which of the mentioned is the advantage of the toothed belt drive?

A. Silent drive
B. High vibration
C. High heat built up
D. High lubrication
Answer» B. High vibration
212.

What are bonded to the inside layer of the load-carrying cords?

A. Facing
B. Backing plate
C. Molded teeth
D. Load-carrying cords
Answer» D. Load-carrying cords
213.

Which component, transmit the torque load from the drive to the drive pulley?

A. Facing
B. Backing plate
C. Molded teeth
D. Load-carrying cords
Answer» E.
214.

In overhead cams, which type of drive is used to drive camshaft?

A. Gear
B. Chain or belt
C. Chain
D. Toothed belt
Answer» C. Chain
215.

What is the speed of the camshaft rotation?

A. Half the crankshaft speed
B. Double the crankshaft speed
C. Thrice the crankshaft speed
D. Same as crankshaft speed
Answer» B. Double the crankshaft speed
216.

The end wise movement of the camshaft is limited by which component?

A. Key
B. Spigot
C. Thrust plate
D. Shear plate
Answer» D. Shear plate
217.

What is the range of clearance given between bearing journals and the bores?

A. 0.06 to 0.5cm
B. 0.025 to 1.2mm
C. 0.5 to 1cm
D. 0.05 to 0.125mm
Answer» E.
218.

Why is the clearance given between bearing journals and the bores?

A. lubrication and metal expansion
B. Friction
C. For lubrication
D. Thermal expansion
Answer» B. Friction
219.

How many cam lobes are present on the camshaft per cylinder?

A. 6
B. 5
C. 3
D. 2
Answer» E.
220.

In which type of engine Valve train is not present?

A. 4-stroke petrol engine
B. 2-stroke petrol engine
C. 4-stroke diesel engine
D. Boxer engine
Answer» C. 4-stroke diesel engine
221.

What is that part of a cam lobe which controls the valve opening called as?

A. Coldspot
B. Hot spot
C. Low spot
D. High spot
Answer» E.
222.

The system given by equation y(t – 2a) – 3y(t – a) + 2y(t) = x(t – a) is?

A. – 3y(t – a) + 2y(t) = x(t – a) is?a) Stable
B. Unstable
C. Marginally stable
D. 0
Answer» B. Unstable
223.

Find the laplace transform of input x(t) if the system given by d3⁄dt3 y(t) – 2 d2⁄dt2 y(t) –d⁄dt y(t) + 2y(t) = x(t), is stable.

A. s + 1
B. s – 1
C. s + 2
D. s – 2
Answer» C. s + 2
224.

The system given by equation 5 d3⁄dt3 y(t) + 10 d⁄dt y(t) – 5y(t) = x(t) + ∫0t x(t)dt, is?

A. Stable
B. Unstable
C. Has poles 0, 0.455, -0.236±1.567
D. Has zeros 0, 0.455, -0.226±1.467
Answer» B. Unstable
225.

Any system is said to be stable if and only if ____________

A. It poles lies at the left of imaginary axis
B. It zeros lies at the left of imaginary axis
C. It poles lies at the right of imaginary axis
D. It zeros lies at the right of imaginary axis
Answer» B. It zeros lies at the left of imaginary axis
226.

Find the transfer function of a system given by equation d2⁄dt2 y(t-a) + x(t) + 5 d⁄dt y(t) = x(t-a).

A. + x(t) + 5 d⁄dt y(t) = x(t-a).a) (e-as-s)/(1+e-as s2)
B. (e-as-5s)/(e-as s2)
C. (e-as-s)/(2+e-as s2)
D. (e-as-5s)/(1+e-as s2)
Answer» E.
227.

Find the poles of transfer function given by system d2⁄dt2 y(t) – d⁄dt y(t) + y(t) – ∫0t x(t)dt = x(t).

A. 0, 0.7 ± 0.466
B. 0, 2.5 ± 0.866
C. 0, 0 .5 ± 0.866
D. 0, 1.5 ± 0.876
Answer» D. 0, 1.5 ± 0.876
228.

Find the equation of transfer function which is defined by y(t)-∫0t y(t)dt + d⁄dt x(t) – 5Sin(t) = 0.

A. \(\frac{s(e^{-as}-1)}{s-1}\)
B. \(\frac{(e^{-as}-s)}{s-1}\)
C. \(\frac{s(e^{-as}-s)}{s-1}\)
D. \(\frac{s(e^{-as}-s^2)}{s-1}\)
Answer» D. \(\frac{s(e^{-as}-s^2)}{s-1}\)
229.

Transfer function may be defined as ____________

A. Ratio of out to input
B. Ratio of laplace transform of output to input
C. Ratio of laplace transform of output to input with zero initial conditions
D. None of the mentioned
Answer» D. None of the mentioned
230.

_______ speed WECS is the most flexible in terms of the generator used.

A. Full variable
B. Limited variable
C. Half variable
D. Fixed
Answer» B. Limited variable
231.

Which of the following is a flowchart depicting WECS modelling?

A. Wind turbine aerodynamic model → gear train model → power grid → generator (PMSG/DFIG)
B. Wind turbine aerodynamic model → generator (PMSG/DFIG) → gear train model → power grid
C. Wind turbine aerodynamic model → generator (PMSG/DFIG) → power grid → gear train model
D. Wind turbine aerodynamic model → gear train model → generator (PMSG/DFIG) → power grid
Answer» E.
232.

Which of the following generators are mostly used in WECS?

A. PMSG and SCIG
B. DFIG and SCIG
C. DFIG and PMSG
D. VAWT and HAWT
Answer» D. VAWT and HAWT
233.

What is super-synchronous mode in doubly-fed induction generator (DFIG)?

A. Rotor runs below synchronous speed
B. Rotor runs above synchronous speed
C. Rotor runs at synchronous speed
D. Rotor takes power from AC mains
Answer» C. Rotor runs at synchronous speed
234.

What is sub-synchronous mode in doubly-fed induction generator (DFIG)?

A. Rotor runs below synchronous speed
B. Rotor runs above synchronous speed
C. Rotor runs at synchronous speed
D. Slip power is fed into AC power supply
Answer» B. Rotor runs above synchronous speed
235.

What is the function of grid side converter?

A. To ensure operation at low power factor
B. To control generator in terms of reactive power
C. To control generator in terms of active power
D. To control the DC-link voltage
Answer» E.
236.

What is the function of rotor side converter?

A. To control the DC-link voltage
B. To ensure operation at large power factor
C. To control generator in terms of active and reactive power
D. To ensure operation at low power factor
Answer» D. To ensure operation at low power factor
237.

Which of the following components are used as converters in power electronics converter?

A. BJT
B. Earphone
C. IGBT
D. Wi-Fi driver
Answer» D. Wi-Fi driver
238.

Which generator is used in variable speed WECS?

A. Squirrel-cage induction
B. Doubly-fed induction
C. Induction squirrel
D. Induction generator
Answer» C. Induction squirrel
239.

How is the speed varied in limited variable speed WECS?

A. Variable rotor resistance
B. Fixed rotor resistance
C. Fixed capacitance
D. Variable rotor
Answer» B. Fixed rotor resistance
240.

What is the percentage of H2O in the product?

A. 15
B. 23
C. 39
D. 51
Answer» C. 39
241.

What is the percentage of C3H7O4 in the product?

A. 10
B. 16
C. 31
D. 43
Answer» D. 43
242.

What is the percentage of N2 in the product?

A. 8
B. 18
C. 34
D. 46
Answer» B. 18
243.

Which one is the excess reactant?a) N2b) H2c) Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?

A. N2b) H2c) Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10
B. H2c) Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10b) 18
C. Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10b) 18c) 38
D. Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10b) 18c) 38d) 54View Answer
Answer» C. Both N2 and H2d) Neither N2 nor H2 7-10. For a given reaction reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2 and if 50% of the limiting reagent conversion takes place.4C3H7O4 + 11O2 → 12CO2 + 14H2O7. What is the percentage of O2 in the product?a) 10b) 18c) 38
244.

What is the number of moles of NH3 after the reaction?

A. 10
B. 15
C. 20
D. None of the mentioned
Answer» D. None of the mentioned
245.

What is the number of moles of H2 after the reaction?

A. 10
B. 15
C. 20
D. None of the mentioned
Answer» B. 15
246.

What is the number of moles of N2 after the reaction?

A. 0
B. 5
C. 10
D. None of the mentioned
Answer» B. 5
247.

In Ammonia production, a reactor is supplied with a feed of 10 moles of N2¬ and 40 moles of H2. If the reaction takes place completely,1. What is the extent of the reaction?

A. 10
B. 15
C. 20
D. None of the mentionedView Answer
Answer» B. 15
248.

Cup head riveting provides maximum strength.

A. True
B. False
Answer» C.
249.

There can be 4 rows of rivets in lap joint.

A. True
B. False
Answer» C.
250.

The following figure represents which rivet head?

A. Pan head
B. Conical head
C. Countersunk head
D. Cup head
Answer» E.